How to solve 171101 error (no no suitable account) in c# form app

[angelim....@gmail.com]

Hi All,

I trying to connect on my sip server but I am getting the error code 171101 (no no suitable account).

After some search about the problem, some peopple suggest change the scheme to "digest" but it's not possible in c# sdk (SipekSDK.dll with pjsip.dll)

I tried to connect in the linphone free server and it's worked fine but 3cx server the error 171101 is percistent.

Any idea on how to solve that?

Tks and best regards