7912 usually restarts

[smahrous]

Some users in my network usually complain that their ip phone (7912) usually restarts .I dnt know if it is a firmware bug or I have something wrong in my network

We have 3550 edges and 6513 core , we dont configure Qos on the switches as I know by defult that the IP Phone resets the Qos tag of the PC .

Any advices

[paul.alvarez]

Few thoughts: Uprgade firmware, hardcode 100 Full on one of the switch ports to see if it fixes it and check your DHCP renewal settings.

[smahrous]

Thanks Paul for your reply

But what about my switching thought is it right ?

And is there a way to monitor why a phone restarts.

Please advice.