Page can not be displayed

Question

User2109697223 posted

In my Asp.net Web form application on production only, some users experience issue like "Page can not be displayed" and logged out of application. Same user is blocked for 8-10 min then after all works fine and can login . 

Note:- Login method is SSO (single sign on). Not able to find what is the issue. Issue faced by some few users only. My application is running on HTTPS.

 i installed fiddler 4 on user machine who facing the issue. Many logs were logged  with status 502, when i saw  error in Raw section error is like this 

Error: ConnectionRefused (0x274d). <br />System.Net.Sockets.SocketException No connection could be made because the target machine actively refused it<myipaddress>:443

When i tracing in IIS i getting like this:

<fieldset>

ModuleName IIS Web Core Notification 1 HttpStatus 500 HttpReason Internal Server Error HttpSubStatus 0 ErrorCode 2147943395 ConfigExceptionInfo Notification BEGIN_REQUEST ErrorCode The I/O operation has been aborted because of either a thread exit or an application request. (0x800703e3)

If anyone experienced same issue. Please help me out.

Thanks  in Advance

</fieldset>

Answer 1

User2109697223 posted

In my Asp.net Web form application on production only, some users experience issue like "Page can not be displayed" and logged out of application. Same user is blocked for 8-10 min then after all works fine and can login . 

Note:- Login method is SSO (single sign on). Not able to find what is the issue. Issue faced by some few users only. My application is running on HTTPS.

 i installed fiddler 4 on user machine who facing the issue. Many logs were logged  with status 502, when i saw  error in Raw section error is like this 

Error: ConnectionRefused (0x274d). <br />System.Net.Sockets.SocketException No connection could be made because the target machine actively refused it<myipaddress>:443

When i tracing in IIS i getting like this:

ModuleName IIS Web Core Notification 1 HttpStatus 500 HttpReason Internal Server Error HttpSubStatus 0 ErrorCode 2147943395 ConfigExceptionInfo Notification BEGIN_REQUEST ErrorCode The I/O operation has been aborted because of either a thread exit or an application request. (0x800703e3)

If anyone experienced same issue. Please help me out.

Thanks  in Advance

 

Answer 2

User665608656 posted

Hi nityanandy,

Error: ConnectionRefused (0x274d). <br />System.Net.Sockets.SocketException No connection could be made because the target machine actively refused it<myipaddress>:443

To solve this issue , you can try to follow these:

According to the page prompt, first close fiddler, then look at the system's proxy settings, and see that the proxy settings are set to "Automatic Configuration > using the automatic configuration script".

 At the same time, the form prompts "Automatic Configuration will override manual settings, to ensure the use of manual settings, please disable automatic configuration", so try to uncheck the check box in front of "Use Automatic Configuration Script". Then try to open Fiddler again and enter a non-https website in the browser. The page is displayed successfully.

The I/O operation has been aborted because of either a thread exit or an application request. (0x800703e3)

This error may related to application version incompatibility , you could refer to this link :

https://forums.iis.net/p/1149787/1871363.aspx

Best Regards,

YongQing.

Answer 3

User2109697223 posted

Thanks for quick response. But these steps not working for me. 

Answer 4

User753101303 posted

Hi,

Looks like a firewall issue ie the other machine tells explicitely the connection is refused. You don't have a stack trace?  It happens between the web server and some other server involved in authentication maybe ?

Answer 5

User2109697223 posted

I don't think it is firewall issue because after 5 or 10 min application  works well. And only few user are experiencing these issue.

Answer 6

User475983607 posted

The socket error usually indicates the site is down or the client is unable to reach the site.  The I/O error can happen if the client disconnected during the request.

How much data are you moving over the wire?  Is your application restarting or you have a very large ViewState?