Proxy authentication problem WPF browser app calling WCF service

Luis

16y12.7k

I have a WPF browser app (partial trust) that calls a WCF service that runs
on the web server. All works fine when the client is not behind a proxy
server. If it is, I get the message: "(407) Proxy Authentication Required".
If I try to alter the settings I get the message "Insufficient
permissions for setting the configuration section 'defaultProxy'". What
should I do? I just want to use the same credentials for normal web access
and WCF access.

5 Replies

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Mathijs Faase16y ago
I just tried upgrading to framework 4.0; no luck there either. (another thread suggested this may be a bug in 3.5, but I doubt it now)
Luis16y ago
I read this thread. My problem is when I set parameters in "WSHttpBinding" (such as ProxyAddress, UseDefaultWebProxy, ....), a security error "WebPermission" is displayed. If my application is full trust then it works fine. But my WPF browser application needs work in partial trust (inside IE).
Mathijs Faase16y ago
I haven't had any luck changing the configuration files, either. However, I just found another thread: it's not the exact same thing but it might be caused by the same problem. I'm presently trying to figure it out.
Luis16y ago
Also I tried set some parameters in "WSHttpBinding" (such as ProxyAddress, UseDefaultWebProxy, ....) but I get a security error "WebPermission". Any idea so that my WPF browser app (partial trust) works when it is behind a proxy server ? Any configuration in .config files ?
Mathijs Faase16y ago
I'm afraid this is not going to be much help, but (as far as I can tell) I have the same problem. What have you tried so far?
I've tried setting .ClientCredentials.UserName.UserName and .ClientCredentials.UserName.Password (of the service client object) with my username/password for the webproxy, but this doesn't help. I've tried this under both IE8 and FF but that doesn't make a difference.
I don't think this is a partial trust issue; somehow the browser's proxy settings aren't passed by the wpf.