The SPA2102 is running firmware 5.2.5. Line 2 works fine. If I set up line 2 incorrectly, I get "failed" as expected. Line 1 is another story. No matter how I set up line 1, the status remains "Not Registered". It would seem that the line is not enabled even though the SPA acknowledges it as enabled in the GUI.
The syslogs show line 2 authenticating just fine. The only thing in the syslogs for line one is "sip skt= INVALID".
I have tried resetting the SPA back to the factory defaults with no luck.
I also tried downgrading the firmware from 5.2.5 to 5.2.3 but the SPA does not take the downgrade. And yes, I have the firmware revision on the provisioning page set to 5.2.0.
Any thoughts would be greatly appreciated.