Hi all, I have a client that is having issues with a couple of their machines running 3CX Phone against a v12 server. Server has been patched to SP4 BTW. Sometimes, on two of their machines the 3CX Phone app will throw an error "3CX Phone for Windows could not establish a connection to the 3CX Phone System Web API. As a result, features like Contacts and presence information will not be available. You can still make and receive Phone Calls via SIP whilst we try and re-establish full functionality in the background." Anyone come across this ? It's intermittent, but appears to be getting more regular. Sometimes reloading the program helps, sometimes a reboot helps, sometimes the phone allows you to make and receive calls like the error says, sometimes it doesn't. Very annoying, and not something I've come across at other sites. Cheers, Paul.