Hi there,

We are currently using salesforce SOAP API.

From a client we are able to connect to test.salesforce.com on port 443 and successfully authenticated and perform API actions.
 
We have recently implemented 2-way mutual authentication and now we are unable to perform API actions. We received the following two errors.
 
 
An unexpected error occurred. Please include this ErrorID if you contact support 1204428080-30724 (1157628926)
 
MUTUAL_AUTHENTICATION_FAILED.
 
 
In reviewing developers.salesforce.com it was recomneded to use port 8443 to perform mutual authentication. We tried that with the client but the client was unable to estabilish a connection on port 8443 and it timed out.
 
Any ideas to resolve the above errors would be helpful?

Thanks