I was away yesterday, but had a chance to revisit tonight and do a step-by-step trace on one of the phones.
- Verified the phone is fine.
- Verified the ethernet cable is fine.
- Verified the jack is fine.
- Confirmed the problem is the port on the Cisco switch. First time I’ve seen this happen.
I’m going to check the other phone too and confirm the problem in both, then see if it’s a hardware failure or a software one. I noticed when I disconnected the cable, the port on the switch has both POE and networking lights solidly lit.
Update: Confirmed the problem is with both ports (side by side). Switched POE ports for now.
Thank you all for your suggestions. It was very much appreciated. Now onto my next problem.