strange authentication dialog

Hi all,
I'm developing a website and deployed on webserver, it always
display an authentication dialog that user must login with valid
Windows user. Would anyone helps to instruct how to prohibit this
dialog?
Some information provides for you:
1) Dev softs:
- VS 2005, ASP.NET 2.0, SQL Server 2005 Enterprise edition
2) Server:
a) Website Directory security:
- Allow anonymous access (IUSR_Server)
- Integrated Windows authentication.
b) OS: Windows 2003 Server.
The particular note is when deplying other Windows 2003 Server PC, it
works fine without any authentication dialog although the configuration
is exactly the same.
Some no - effective solutions:
- Remove "Integrated Windows authentication": result of "you are
unauthorized to ..."
- Add permission for user Evryone, Anonymous Logon, Network Service.
Very appreciated for any hint.
KNCKNC,
You should anyway remove the "Integrated WIndows Authentication"
setting from IIS. Having done that, you should make sure that the
physical directory that you have your website in has permissions for
the Network Service. Thirdly, what kind of authentication have you
specified for your web site (typically a setting in your web.config
file). Try checking that.
- Vaibhav
On Nov 2, 1:25 pm, "KNC" <k...@.glassegg.com> wrote:
> Hi all,
> I'm developing a website and deployed on webserver, it always
> display an authentication dialog that user must login with valid
> Windows user. Would anyone helps to instruct how to prohibit this
> dialog?
> Some information provides for you:
> 1) Dev softs:
> - VS 2005, ASP.NET 2.0, SQL Server 2005 Enterprise edition
> 2) Server:
> a) Website Directory security:
> - Allow anonymous access (IUSR_Server)
> - Integrated Windows authentication.
> b) OS: Windows 2003 Server.
> The particular note is when deplying other Windows 2003 Server PC, it
> works fine without any authentication dialog although the configuration
> is exactly the same.
> Some no - effective solutions:
> - Remove "Integrated Windows authentication": result of "you are
> unauthorized to ..."
> - Add permission for user Evryone, Anonymous Logon, Network Service.
> Very appreciated for any hint.
> KNC
Hi V,
Thanks for your help. But as my message, I already tried to remove
"Integrated Windows authentication" and add user "NETWORK SERVICE" into
user list of my folder of website (under wwwroot) but no effect.
I've just re-tried as your instruction but it is still the same
phenomenon.
FYI, the authentication type of web.config is <authentication
mode="Forms">
Moreover, if I setting the Anonymous user account is a power user
(such as Administrator), it works fine, no authentication dialog at
all.
Would you guys pls give the root cause of this problem?
Thanks in advance,
KNC
V wrote:
> KNC,
> You should anyway remove the "Integrated WIndows Authentication"
> setting from IIS. Having done that, you should make sure that the
> physical directory that you have your website in has permissions for
> the Network Service. Thirdly, what kind of authentication have you
> specified for your web site (typically a setting in your web.config
> file). Try checking that.
> - Vaibhav
> On Nov 2, 1:25 pm, "KNC" <k...@.glassegg.com> wrote:
KNC,
if you have configured Forms authentication in your application, have
you implemented it in your pages? To be honest, I am not entirely sure
why your application is behaving this way (need one those experts to
answer on your thread :) ). However, i am trying to think of all the
things that I do when i setup Forms Authentication based web-app as I
have NEVER faced this problem.
Cheers,
- V
KNC wrote:
> Hi V,
> Thanks for your help. But as my message, I already tried to remove
> "Integrated Windows authentication" and add user "NETWORK SERVICE" into
> user list of my folder of website (under wwwroot) but no effect.
> I've just re-tried as your instruction but it is still the same
> phenomenon.
> FYI, the authentication type of web.config is <authentication
> mode="Forms">
> Moreover, if I setting the Anonymous user account is a power user
> (such as Administrator), it works fine, no authentication dialog at
> all.
> Would you guys pls give the root cause of this problem?
> Thanks in advance,
> KNC
> V wrote:

strange authentication dialog

Hi all,

I'm developing a website and deployed on webserver, it always
display an authentication dialog that user must login with valid
Windows user. Would anyone helps to instruct how to prohibit this
dialog?
Some information provides for you:
1) Dev softs:
- VS 2005, ASP.NET 2.0, SQL Server 2005 Enterprise edition
2) Server:
a) Website Directory security:
- Allow anonymous access (IUSR_Server)
- Integrated Windows authentication.
b) OS: Windows 2003 Server.

The particular note is when deplying other Windows 2003 Server PC, it
works fine without any authentication dialog although the configuration
is exactly the same.
Some no - effective solutions:
- Remove "Integrated Windows authentication": result of "you are
unauthorized to ..."
- Add permission for user Evryone, Anonymous Logon, Network Service.

Very appreciated for any hint.
KNCKNC,

You should anyway remove the "Integrated WIndows Authentication"
setting from IIS. Having done that, you should make sure that the
physical directory that you have your website in has permissions for
the Network Service. Thirdly, what kind of authentication have you
specified for your web site (typically a setting in your web.config
file). Try checking that.

- Vaibhav

On Nov 2, 1:25 pm, "KNC" <k...@.glassegg.comwrote:

Quote:

Originally Posted by

Hi all,
>
I'm developing a website and deployed on webserver, it always
display an authentication dialog that user must login with valid
Windows user. Would anyone helps to instruct how to prohibit this
dialog?
Some information provides for you:
1) Dev softs:
- VS 2005, ASP.NET 2.0, SQL Server 2005 Enterprise edition
2) Server:
a) Website Directory security:
- Allow anonymous access (IUSR_Server)
- Integrated Windows authentication.
b) OS: Windows 2003 Server.
>
The particular note is when deplying other Windows 2003 Server PC, it
works fine without any authentication dialog although the configuration
is exactly the same.
Some no - effective solutions:
- Remove "Integrated Windows authentication": result of "you are
unauthorized to ..."
- Add permission for user Evryone, Anonymous Logon, Network Service.
>
Very appreciated for any hint.
KNC

Hi V,

Thanks for your help. But as my message, I already tried to remove
"Integrated Windows authentication" and add user "NETWORK SERVICE" into
user list of my folder of website (under wwwroot) but no effect.
I've just re-tried as your instruction but it is still the same
phenomenon.
FYI, the authentication type of web.config is <authentication
mode="Forms">
Moreover, if I setting the Anonymous user account is a power user
(such as Administrator), it works fine, no authentication dialog at
all.

Would you guys pls give the root cause of this problem?

Thanks in advance,
KNC

V wrote:

Quote:

Originally Posted by

KNC,
>
You should anyway remove the "Integrated WIndows Authentication"
setting from IIS. Having done that, you should make sure that the
physical directory that you have your website in has permissions for
the Network Service. Thirdly, what kind of authentication have you
specified for your web site (typically a setting in your web.config
file). Try checking that.
>
- Vaibhav
>
On Nov 2, 1:25 pm, "KNC" <k...@.glassegg.comwrote:

Quote:

Originally Posted by

Hi all,

I'm developing a website and deployed on webserver, it always
display an authentication dialog that user must login with valid
Windows user. Would anyone helps to instruct how to prohibit this
dialog?
Some information provides for you:
1) Dev softs:
- VS 2005, ASP.NET 2.0, SQL Server 2005 Enterprise edition
2) Server:
a) Website Directory security:
- Allow anonymous access (IUSR_Server)
- Integrated Windows authentication.
b) OS: Windows 2003 Server.

The particular note is when deplying other Windows 2003 Server PC, it
works fine without any authentication dialog although the configuration
is exactly the same.
Some no - effective solutions:
- Remove "Integrated Windows authentication": result of "you are
unauthorized to ..."
- Add permission for user Evryone, Anonymous Logon, Network Service.

Very appreciated for any hint.
KNC

KNC,

if you have configured Forms authentication in your application, have
you implemented it in your pages? To be honest, I am not entirely sure
why your application is behaving this way (need one those experts to
answer on your thread :) ). However, i am trying to think of all the
things that I do when i setup Forms Authentication based web-app as I
have NEVER faced this problem.

Cheers,
- V

KNC wrote:

Quote:

Originally Posted by

Hi V,
>
Thanks for your help. But as my message, I already tried to remove
"Integrated Windows authentication" and add user "NETWORK SERVICE" into
user list of my folder of website (under wwwroot) but no effect.
I've just re-tried as your instruction but it is still the same
phenomenon.
FYI, the authentication type of web.config is <authentication
mode="Forms">
Moreover, if I setting the Anonymous user account is a power user
(such as Administrator), it works fine, no authentication dialog at
all.
>
Would you guys pls give the root cause of this problem?
>
Thanks in advance,
KNC
>
V wrote:

Quote:

Originally Posted by

KNC,

You should anyway remove the "Integrated WIndows Authentication"
setting from IIS. Having done that, you should make sure that the
physical directory that you have your website in has permissions for
the Network Service. Thirdly, what kind of authentication have you
specified for your web site (typically a setting in your web.config
file). Try checking that.

- Vaibhav

On Nov 2, 1:25 pm, "KNC" <k...@.glassegg.comwrote:

Quote:

Originally Posted by

Hi all,
>
I'm developing a website and deployed on webserver, it always
display an authentication dialog that user must login with valid
Windows user. Would anyone helps to instruct how to prohibit this
dialog?
Some information provides for you:
1) Dev softs:
- VS 2005, ASP.NET 2.0, SQL Server 2005 Enterprise edition
2) Server:
a) Website Directory security:
- Allow anonymous access (IUSR_Server)
- Integrated Windows authentication.
b) OS: Windows 2003 Server.
>
The particular note is when deplying other Windows 2003 Server PC, it
works fine without any authentication dialog although the configuration
is exactly the same.
Some no - effective solutions:
- Remove "Integrated Windows authentication": result of "you are
unauthorized to ..."
- Add permission for user Evryone, Anonymous Logon, Network Service.
>
Very appreciated for any hint.
KNC

strange authentication problem...

hi there,
i've got a website i created, that i've put onto my test server on the web.
I have a login page, that when the user comes to it, it first pops up a
windows authentication dialog box, and i dont know why? i click cancel on it
and the page still works as normal.
How can i remove this, and why is it appearing?
i am also not using any .NET authentication methods or anything..
thanks,you can set authentication mode in Web.config file
<authentication mode="Forms">
<forms name="login" loginUrl="login.aspx" protection="All" />
</authentication>
"Paul M" <milsnips@.hotmail.com> д?
news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> hi there,
> i've got a website i created, that i've put onto my test server on the
web.
> I have a login page, that when the user comes to it, it first pops up a
> windows authentication dialog box, and i dont know why? i click cancel on
it
> and the page still works as normal.
> How can i remove this, and why is it appearing?
> i am also not using any .NET authentication methods or anything..
> thanks,
>
thanks, but this isnt exactly what i am after..
What the problem is that i already have a login page which all works
fine...however i have 3 pages in my web app, that whenever i go to their
URL, they always popup the windows authentication window, when it shouldnt
appear..i have no authentication code for these pages, nor do i want any.
web.config is also set to <authentication mode="None" /> but still no luck.
Paull
"lzh" <lzh@.hotmail.com> wrote in message
news:uy1G0C9HEHA.2300@.tk2msftngp13.phx.gbl...
> you can set authentication mode in Web.config file
> <authentication mode="Forms">
> <forms name="login" loginUrl="login.aspx" protection="All" />
> </authentication>
> "Paul M" <milsnips@.hotmail.com> д?
> news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> web.
on
> it
>
it's really a trouble,i have no ideas about that.
if you have set authentication mode="None", it's will work
try again
<authentication mode="None">
<allow users="?"/>
</authentication>
"Paul M" <milsnips@.hotmail.com> д?
:uLl5APAIEHA.828@.TK2MSFTNGP12.phx.gbl...
> thanks, but this isnt exactly what i am after..
> What the problem is that i already have a login page which all works
> fine...however i have 3 pages in my web app, that whenever i go to their
> URL, they always popup the windows authentication window, when it shouldnt
> appear..i have no authentication code for these pages, nor do i want any.
> web.config is also set to <authentication mode="None" /> but still no
luck.
> Paull
> "lzh" <lzh@.hotmail.com> wrote in message
> news:uy1G0C9HEHA.2300@.tk2msftngp13.phx.gbl...
<allow roles="Admins"/>
a
> on
>

strange authentication problem...

hi there,

i've got a website i created, that i've put onto my test server on the web.

I have a login page, that when the user comes to it, it first pops up a
windows authentication dialog box, and i dont know why? i click cancel on it
and the page still works as normal.

How can i remove this, and why is it appearing?
i am also not using any .NET authentication methods or anything..

thanks,you can set authentication mode in Web.config file
<authentication mode="Forms">
<forms name="login" loginUrl="login.aspx" protection="All" />
</authentication
"Paul M" <milsnips@.hotmail.com> д?
news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> hi there,
> i've got a website i created, that i've put onto my test server on the
web.
> I have a login page, that when the user comes to it, it first pops up a
> windows authentication dialog box, and i dont know why? i click cancel on
it
> and the page still works as normal.
> How can i remove this, and why is it appearing?
> i am also not using any .NET authentication methods or anything..
> thanks,
thanks, but this isnt exactly what i am after..

What the problem is that i already have a login page which all works
fine...however i have 3 pages in my web app, that whenever i go to their
URL, they always popup the windows authentication window, when it shouldnt
appear..i have no authentication code for these pages, nor do i want any.

web.config is also set to <authentication mode="None" /> but still no luck.

Paull

"coollzh" <coollzh@.hotmail.com> wrote in message
news:uy1G0C9HEHA.2300@.tk2msftngp13.phx.gbl...
> you can set authentication mode in Web.config file
> <authentication mode="Forms">
> <forms name="login" loginUrl="login.aspx" protection="All" />
> </authentication>
> "Paul M" <milsnips@.hotmail.com> д?
> news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> > hi there,
> > i've got a website i created, that i've put onto my test server on the
> web.
> > I have a login page, that when the user comes to it, it first pops up a
> > windows authentication dialog box, and i dont know why? i click cancel
on
> it
> > and the page still works as normal.
> > How can i remove this, and why is it appearing?
> > i am also not using any .NET authentication methods or anything..
> > thanks,

strange authentication problem...

hi there,

i've got a website i created, that i've put onto my test server on the web.

I have a login page, that when the user comes to it, it first pops up a
windows authentication dialog box, and i dont know why? i click cancel on it
and the page still works as normal.

How can i remove this, and why is it appearing?
i am also not using any .NET authentication methods or anything..

thanks,you can set authentication mode in Web.config file
<authentication mode="Forms">
<forms name="login" loginUrl="login.aspx" protection="All" />
</authentication
"Paul M" <milsnips@.hotmail.com> д?
news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> hi there,
> i've got a website i created, that i've put onto my test server on the
web.
> I have a login page, that when the user comes to it, it first pops up a
> windows authentication dialog box, and i dont know why? i click cancel on
it
> and the page still works as normal.
> How can i remove this, and why is it appearing?
> i am also not using any .NET authentication methods or anything..
> thanks,
you can set authentication mode in Web.config file
<authentication mode="Forms">
<forms name="login" loginUrl="login.aspx" protection="All" />
</authentication
"Paul M" <milsnips@.hotmail.com> д?
news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> hi there,
> i've got a website i created, that i've put onto my test server on the
web.
> I have a login page, that when the user comes to it, it first pops up a
> windows authentication dialog box, and i dont know why? i click cancel on
it
> and the page still works as normal.
> How can i remove this, and why is it appearing?
> i am also not using any .NET authentication methods or anything..
> thanks,
thanks, but this isnt exactly what i am after..

What the problem is that i already have a login page which all works
fine...however i have 3 pages in my web app, that whenever i go to their
URL, they always popup the windows authentication window, when it shouldnt
appear..i have no authentication code for these pages, nor do i want any.

web.config is also set to <authentication mode="None" /> but still no luck.

Paull

"coollzh" <coollzh@.hotmail.com> wrote in message
news:uy1G0C9HEHA.2300@.tk2msftngp13.phx.gbl...
> you can set authentication mode in Web.config file
> <authentication mode="Forms">
> <forms name="login" loginUrl="login.aspx" protection="All" />
> </authentication>
> "Paul M" <milsnips@.hotmail.com> д?
> news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> > hi there,
> > i've got a website i created, that i've put onto my test server on the
> web.
> > I have a login page, that when the user comes to it, it first pops up a
> > windows authentication dialog box, and i dont know why? i click cancel
on
> it
> > and the page still works as normal.
> > How can i remove this, and why is it appearing?
> > i am also not using any .NET authentication methods or anything..
> > thanks,
thanks, but this isnt exactly what i am after..

What the problem is that i already have a login page which all works
fine...however i have 3 pages in my web app, that whenever i go to their
URL, they always popup the windows authentication window, when it shouldnt
appear..i have no authentication code for these pages, nor do i want any.

web.config is also set to <authentication mode="None" /> but still no luck.

Paull

"coollzh" <coollzh@.hotmail.com> wrote in message
news:uy1G0C9HEHA.2300@.tk2msftngp13.phx.gbl...
> you can set authentication mode in Web.config file
> <authentication mode="Forms">
> <forms name="login" loginUrl="login.aspx" protection="All" />
> </authentication>
> "Paul M" <milsnips@.hotmail.com> д?
> news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> > hi there,
> > i've got a website i created, that i've put onto my test server on the
> web.
> > I have a login page, that when the user comes to it, it first pops up a
> > windows authentication dialog box, and i dont know why? i click cancel
on
> it
> > and the page still works as normal.
> > How can i remove this, and why is it appearing?
> > i am also not using any .NET authentication methods or anything..
> > thanks,
it's really a trouble,i have no ideas about that.
if you have set authentication mode="None", it's will work
try again
<authentication mode="None"
<allow users="?"/>
</authentication
"Paul M" <milsnips@.hotmail.com> д?
:uLl5APAIEHA.828@.TK2MSFTNGP12.phx.gbl...
> thanks, but this isnt exactly what i am after..
> What the problem is that i already have a login page which all works
> fine...however i have 3 pages in my web app, that whenever i go to their
> URL, they always popup the windows authentication window, when it shouldnt
> appear..i have no authentication code for these pages, nor do i want any.
> web.config is also set to <authentication mode="None" /> but still no
luck.
> Paull
> "coollzh" <coollzh@.hotmail.com> wrote in message
> news:uy1G0C9HEHA.2300@.tk2msftngp13.phx.gbl...
> > you can set authentication mode in Web.config file
> > <authentication mode="Forms">
> > <forms name="login" loginUrl="login.aspx" protection="All" />
<allow roles="Admins"/
> > </authentication>
> > "Paul M" <milsnips@.hotmail.com> д?
> > news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> > > hi there,
> > > > i've got a website i created, that i've put onto my test server on the
> > web.
> > > > I have a login page, that when the user comes to it, it first pops up
a
> > > windows authentication dialog box, and i dont know why? i click cancel
> on
> > it
> > > and the page still works as normal.
> > > > How can i remove this, and why is it appearing?
> > > i am also not using any .NET authentication methods or anything..
> > > > thanks,
> >

strange authentication problem...

hi there,

i've got a website i created, that i've put onto my test server on the web.

I have a login page, that when the user comes to it, it first pops up a
windows authentication dialog box, and i dont know why? i click cancel on it
and the page still works as normal.

How can i remove this, and why is it appearing?
i am also not using any .NET authentication methods or anything..

thanks,you can set authentication mode in Web.config file
<authentication mode="Forms">
<forms name="login" loginUrl="login.aspx" protection="All" />
</authentication
"Paul M" <milsnips@.hotmail.com> д?
news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> hi there,
> i've got a website i created, that i've put onto my test server on the
web.
> I have a login page, that when the user comes to it, it first pops up a
> windows authentication dialog box, and i dont know why? i click cancel on
it
> and the page still works as normal.
> How can i remove this, and why is it appearing?
> i am also not using any .NET authentication methods or anything..
> thanks,
thanks, but this isnt exactly what i am after..

What the problem is that i already have a login page which all works
fine...however i have 3 pages in my web app, that whenever i go to their
URL, they always popup the windows authentication window, when it shouldnt
appear..i have no authentication code for these pages, nor do i want any.

web.config is also set to <authentication mode="None" /> but still no luck.

Paull

"coollzh" <coollzh@.hotmail.com> wrote in message
news:uy1G0C9HEHA.2300@.tk2msftngp13.phx.gbl...
> you can set authentication mode in Web.config file
> <authentication mode="Forms">
> <forms name="login" loginUrl="login.aspx" protection="All" />
> </authentication>
> "Paul M" <milsnips@.hotmail.com> д?
> news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> > hi there,
> > i've got a website i created, that i've put onto my test server on the
> web.
> > I have a login page, that when the user comes to it, it first pops up a
> > windows authentication dialog box, and i dont know why? i click cancel
on
> it
> > and the page still works as normal.
> > How can i remove this, and why is it appearing?
> > i am also not using any .NET authentication methods or anything..
> > thanks,
thanks, but this isnt exactly what i am after..

What the problem is that i already have a login page which all works
fine...however i have 3 pages in my web app, that whenever i go to their
URL, they always popup the windows authentication window, when it shouldnt
appear..i have no authentication code for these pages, nor do i want any.

web.config is also set to <authentication mode="None" /> but still no luck.

Paull

"coollzh" <coollzh@.hotmail.com> wrote in message
news:uy1G0C9HEHA.2300@.tk2msftngp13.phx.gbl...
> you can set authentication mode in Web.config file
> <authentication mode="Forms">
> <forms name="login" loginUrl="login.aspx" protection="All" />
> </authentication>
> "Paul M" <milsnips@.hotmail.com> д?
> news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> > hi there,
> > i've got a website i created, that i've put onto my test server on the
> web.
> > I have a login page, that when the user comes to it, it first pops up a
> > windows authentication dialog box, and i dont know why? i click cancel
on
> it
> > and the page still works as normal.
> > How can i remove this, and why is it appearing?
> > i am also not using any .NET authentication methods or anything..
> > thanks,
it's really a trouble,i have no ideas about that.
if you have set authentication mode="None", it's will work
try again
<authentication mode="None"
<allow users="?"/>
</authentication
"Paul M" <milsnips@.hotmail.com> д?
:uLl5APAIEHA.828@.TK2MSFTNGP12.phx.gbl...
> thanks, but this isnt exactly what i am after..
> What the problem is that i already have a login page which all works
> fine...however i have 3 pages in my web app, that whenever i go to their
> URL, they always popup the windows authentication window, when it shouldnt
> appear..i have no authentication code for these pages, nor do i want any.
> web.config is also set to <authentication mode="None" /> but still no
luck.
> Paull
> "coollzh" <coollzh@.hotmail.com> wrote in message
> news:uy1G0C9HEHA.2300@.tk2msftngp13.phx.gbl...
> > you can set authentication mode in Web.config file
> > <authentication mode="Forms">
> > <forms name="login" loginUrl="login.aspx" protection="All" />
<allow roles="Admins"/
> > </authentication>
> > "Paul M" <milsnips@.hotmail.com> д?
> > news:Oux4bs8HEHA.3200@.TK2MSFTNGP10.phx.gbl...
> > > hi there,
> > > > i've got a website i created, that i've put onto my test server on the
> > web.
> > > > I have a login page, that when the user comes to it, it first pops up
a
> > > windows authentication dialog box, and i dont know why? i click cancel
> on
> > it
> > > and the page still works as normal.
> > > > How can i remove this, and why is it appearing?
> > > i am also not using any .NET authentication methods or anything..
> > > > thanks,
> >

Strange Behavior

When I drag and drop my custom control on to the webform, it displays as a little (resizable) square in design.
If I click the html tab to go to html view, then click the Design tab again, the control shows just fine (like a regular textbox).

Is there some event I am missing or a property that needs to be set?

The top is what is looks like when I place the control on the form.
The bottom is what it looks like when I go to html view and then back to design view...

http://vbforums.com/attachment.php?s=&postid=1669737

Any Ideas what is going on?Solution: I had to override the render event.
Like this

Protected Overrides Sub render(output As HtmlTextWriter)
EnsureChildControls()
MyBase.Render()
End Sub