I've some customers that cannot connect to my corporate IIS if the have the
IE7 option "Use HTTP 1.1 through proxy connections" enabled (as it's as
default). If they leave it checked, they see only a blank page. If they
uncheck it, they see the web site.
I cannot understand if I have some trouble with IIS or other. It seems it
started after I applied SP2.
Any idea?
thanks
Hello Trapulo,
According to your description, I understand your customer's IE7.0 client
cannot connect to your IIS server when leaving "Use HTTP 1.1 through proxy
connections" enabled. If I misunderstand anything here, please don't
hesitate to correct me. Thanks.
Does your customer use Proxy Server to connect corporate IIS? In my
opinion, it seems like the issue is related to your Proxy Server, rather
than IIS.
However, I have something unclear in this issue. Would you please clarify
this for me?
1) >If they leave it checked, they see only a blank page.
Did IIS serve receive the HTTP request from IE client? Is there anything
traced by your IIS log? If true, could you please post some related IIS log
snippet? Thus, we can do further analyze.
2) >I cannot understand if I have some trouble with IIS or other. It seems
it started after I applied SP2.
Which sever packet you applied on your machine? Is it Windows XP sp2? BTW,
would you please let me know which version of IIS your server is running on
( IIS 5.0 or IIS 6.0)?
3) As far as I know, "Use HTTP 1.1 through proxy connections" option is
disabled on IE 6.0( by default). Therefore, in order to narrow down the
issue, please check whether the issue will occur if you leave this
option("Use HTTP 1.1 through proxy connections") enabled on IE 6.0?
I'm looking forward to hearing your reply.
Have a great day,
Wen Yuan
Microsoft Online Community Support
==================================================
This posting is provided "AS IS" with no warranties, and confers no rights.
Hello Trapulo,
How are you? This is Wen Yuan, again. I just want to check if the issue has
been resolved?
If the issue still persists, would you please collect enough information
for me (just as my last reply). Thus, we could follow up and do further
analyze. I'm glad to assist you.
Have a great day,
Sincerely,
Wen Yuan
Microsoft Online Community Support
==================================================
This posting is provided "AS IS" with no warranties, and confers no rights.
"WenYuan Wang [MSFT]"
news:ud7gGCksHHA.2316@TK2MSFTNGHUB02.phx.gbl...
> Hello Trapulo,
>
> According to your description, I understand your customer's IE7.0 client
> cannot connect to your IIS server when leaving "Use HTTP 1.1 through proxy
> connections" enabled. If I misunderstand anything here, please don't
> hesitate to correct me. Thanks.
That's right.
Not all my customer, in fact, but not only one.
> Does your customer use Proxy Server to connect corporate IIS? In my
> opinion, it seems like the issue is related to your Proxy Server, rather
> than IIS.
This is my opinion too, and, in fact, the only one that I did solve speaking
with a techinical was using squid, and we solve disabling it
However I have many customers reporting this problem to my helpdesk, so I
think it's not possible that all are using a proxy with some bug. However,
either if this is a proxy problem, I can't understand why this people see
all websites they use, but not mine..
Just an idea: http compression can create trouble?
> However, I have something unclear in this issue. Would you please clarify
> this for me?
>
> 1) >If they leave it checked, they see only a blank page.
yes
> Did IIS serve receive the HTTP request from IE client? Is there anything
> traced by your IIS log? If true, could you please post some related IIS
> log
> snippet? Thus, we can do further analyze.
It's very hard to find a specific trace as you requried from the log of a
wide used web site.. I don't know :((
> 2) >I cannot understand if I have some trouble with IIS or other. It seems
> it started after I applied SP2.
> Which sever packet you applied on your machine? Is it Windows XP sp2? BTW,
> would you please let me know which version of IIS your server is running
> on
> ( IIS 5.0 or IIS 6.0)?
I'm using W2003 STD, and I'was speaking about W2003 SP2. It seems (but I'm
not sure) that most problems started after I installed it..
> 3) As far as I know, "Use HTTP 1.1 through proxy connections" option is
> disabled on IE 6.0( by default). Therefore, in order to narrow down the
> issue, please check whether the issue will occur if you leave this
> option("Use HTTP 1.1 through proxy connections") enabled on IE 6.0?
That's interesting! I didn't know that default value has changed from IE6 to
7. I'll try to make this test from a netword where IE7 has problem...
BTW, can you help me to understand how this option can impact in IE
navigation?
thanks
Hello Trapulo,
Sorry for delay due to weekend.
"Use HTTP 1.1 through proxy connections" option is used to define the HTTP
protocol version that will be used when connecting to a Proxy.
If you uncheck it, IE will send request using HTTP 1.0. If you check it, IE
will use HTTP 1.1.
I also suspect the issue to deal with HTTP compression, because HTTP
compression is only supported if you use HTTP 1.1.
In order to figure out the root cause, I'm afraid you may get a netmon
trace check if compression is used. Is it possible for you to collect the
Netmon trace to verify the cause?
You may follow the steps as below:
Note: Please do not use HTTPS as SSL will encrypt all the traffic.
1. Download and install Network Monitor from the following place. The
password is "trace" (without the quotation marks):
ftp://ftp.microsoft.com/PSS/Tools/NetMon/NETMON2.ZIP
2. On the problematic client, locate and start Network Monitor in
Administrative Tools.
3. Click Capture-> Networks-> Locate the Network Interface which is used to
send and receive related network traffic-> Click OK
Hello Trapulo,
It seems my last reply has been truncated in newsgroup. I'm sorry about
that.
Thus I post it again as below. Please check. thanks.
"Use HTTP 1.1 through proxy connections" option is used to define the HTTP
protocol version that will be used when connecting to a Proxy.
If you uncheck it, IE will send request using HTTP 1.0. If you check it, IE
will use HTTP 1.1.
I also suspect the issue to deal with HTTP compression, because HTTP
compression is only supported if you use HTTP 1.1.
In order to figure out the root cause, I'm afraid you may get a netmon
trace check if compression is used. Is it possible for you to collect the
Netmon trace to verify the cause?
You may follow the steps as below:
Note: Please do not use HTTPS as SSL will encrypt all the traffic.
1. Download and install Network Monitor from the following place. The
password is "trace" (without the quotation marks):
ftp://ftp.microsoft.com/PSS/Tools/NetMon/NETMON2.ZIP
2. On the problematic client, locate and start Network Monitor in
Administrative Tools.
3. Click Capture-> Networks-> Locate the Network Interface which is used to
send and receive related network traffic-> Click OK
4. Press "F10" to start the capture on both sides-> reproduce the problem->
Press "Shift + F11" to stop the capture on both sides, and view the packets.
5. Click File-> Save as to save the packets as a .cap file.
6. Repeat the above steps on the server side.
7. Attach the .cap file to me: v-wywang@microsoft.com. Also let me know the
exact time of the connection and the IP address of Server and Client.
For more information, please refer to the following article:
How to Capture Network Traffic with Network Monitor
http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q148 942
Should you have any concern, please feel free to let me know. I am glad to
be of assistance!
Have a nice day!
Sincerely,
Wen Yuan
Microsoft Online Community Support
==================================================
This posting is provided "AS IS" with no warranties, and confers no rights.
WenYuan ,
to collect this data I need to work on both client pc and server. So I need
to find a customer that have the problem and that want spend some time to
help me. This will require time because customers with this problem want
solutions, not to find them (in fact, they are only "customers of my
customers", so I'm not in strong position to require help) :(
I'll try to find it and run the problem, then I'll send to you the files.
Meanwhile I think we may stand by and waiting.
Thank you for your assistance
"WenYuan Wang [MSFT]"
news:o$gUuZLuHHA.360@TK2MSFTNGHUB02.phx.gbl...
> Hello Trapulo,
>
> It seems my last reply has been truncated in newsgroup. I'm sorry about
> that.
> Thus I post it again as below. Please check. thanks.
>
> "Use HTTP 1.1 through proxy connections" option is used to define the HTTP
> protocol version that will be used when connecting to a Proxy.
> If you uncheck it, IE will send request using HTTP 1.0. If you check it,
> IE
> will use HTTP 1.1.
>
> I also suspect the issue to deal with HTTP compression, because HTTP
> compression is only supported if you use HTTP 1.1.
>
> In order to figure out the root cause, I'm afraid you may get a netmon
> trace check if compression is used. Is it possible for you to collect the
> Netmon trace to verify the cause?
>
> You may follow the steps as below:
> Note: Please do not use HTTPS as SSL will encrypt all the traffic.
>
> 1. Download and install Network Monitor from the following place. The
> password is "trace" (without the quotation marks):
> ftp://ftp.microsoft.com/PSS/Tools/NetMon/NETMON2.ZIP
>
> 2. On the problematic client, locate and start Network Monitor in
> Administrative Tools.
>
> 3. Click Capture-> Networks-> Locate the Network Interface which is used
> to
> send and receive related network traffic-> Click OK
>
> 4. Press "F10" to start the capture on both sides-> reproduce the
> problem->
> Press "Shift + F11" to stop the capture on both sides, and view the
> packets.
>
> 5. Click File-> Save as to save the packets as a .cap file.
>
> 6. Repeat the above steps on the server side.
>
> 7. Attach the .cap file to me: v-wywang@microsoft.com. Also let me know
> the
> exact time of the connection and the IP address of Server and Client.
>
> For more information, please refer to the following article:
>
> How to Capture Network Traffic with Network Monitor
> http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q148 942
>
> Should you have any concern, please feel free to let me know. I am glad to
> be of assistance!
>
> Have a nice day!
> Sincerely,
> Wen Yuan
> Microsoft Online Community Support
> ==================================================
> This posting is provided "AS IS" with no warranties, and confers no
> rights.
>
Hello Trapulo
Thanks for your reply.
Sure, I understood. I'm stading by.
If you got any further information, feel free to update here again.
I'm glad to be of assistance. :)
Have a great day,
Sincerely,
Wen Yuan
Microsoft Online Community Support
==================================================
This posting is provided "AS IS" with no warranties, and confers no rights.