Allworx Technical Support Forum

According to NexVortex my Allworx 6x is failing to send credential to the registrar server.

NexVortex sends a 401 request and the 6X continues to send the same regiatration request without credentials attached. I have SIP registration required checked on the SIP proxy.

Has anyone run into this problem before? Any tips on troubleshooting?

First things first. Always be on the most recent version possible.
Have you verified the login/username and password for the SIP proxy is correct? Is there a firewall or router between the Allworx and the Internet? In other words, is it in NAT/Firewall mode or LAN Host? If LAN Host, the firewall or router could be the problem. You could also do a packet capture for NexVortex if they are willing to help that much.