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No access with proxy with authentication

Sep 27, 2010 at 8:53 AM


we have a proxy with authentivation in use.

After starting the programm I try to "Sign In" with the Windows Live ID.

The errormessage is: fail to log-on!

Error Msg: Network error. Please check the network connection and try again.

Error Code: 0x80048820


Extend Error Code: 0x80048430


Is it possible to use the bridge in my case?



Sep 27, 2010 at 9:15 AM

You need to modify the file "CommunityForumsNNTPServer.exe.config" and uncomment the proxy-settings. Also you need to enter your proxy server into these settings...

This looks like:

        <defaultProxy useDefaultCredentials="true">
            <proxy bypassonlocal="False" proxyaddress="http://gateway:8080" />
            <proxy_test usesystemdefault="True"/>

Sep 27, 2010 at 11:02 AM

It didn' work. Same error.

I need a login-dialoge for a internet-session.


My config:

        <defaultProxy useDefaultCredentials="true">
            <proxy bypassonlocal="False" proxyaddress="http://proxy:8080" />
            <proxy usesystemdefault="True"/>






Sep 27, 2010 at 11:06 AM
Edited Sep 27, 2010 at 11:46 AM

Can you remove the "useDefaultCredintials"... and "useSystemDefaul="False"!?

Sep 27, 2010 at 11:24 AM

It's the same problem.

My config:

            <proxy bypassonlocal="False" proxyaddress="http://proxy:8080" />


Sep 27, 2010 at 12:08 PM



are the Proxy Settings correct? http://proxy:8080 maybe its Port 3128. Are you using a proxy.pac?


What are the settings in the Internet Explorer you must use?

Sep 27, 2010 at 12:30 PM

Hi Winfried,

8080 is correct.

I use a proxy.pac.

Whitch settings do you mean?

Sep 27, 2010 at 1:10 PM

I think in IE you will have the Settings: http://proxy.domain.tld/proxy.pac Correct? Or what Settings you will find in Internet Explorer or in Firefox?

Sep 27, 2010 at 1:28 PM
Edited Sep 27, 2010 at 2:20 PM


Use Auto Config Script (Automatisches Konfigurationsskript verwenden)






Sep 27, 2010 at 2:15 PM

OK, try to use http://proxy/proxyconfig/proxy.pac in CommunityForumsNNTPServer.exe.config. Maybe the Dialog for Username + Passwort is coming up.

Sep 27, 2010 at 2:27 PM

The programm didn't start and there's no (error/config/...) message.

Sep 27, 2010 at 2:56 PM

Hmm, i will try later this. Maybe i can found a solution. Or Jochen will found a Solution.

Sep 27, 2010 at 8:52 PM

Sorry, could not found a solution. Now it is a Job for Jochen. ;)