Hello all -
I'm having a problem that seems to be getting worse. I have 350 or so 7910/40/60 phones running on CCM 3.2 (1 pub, 1 sub, 1 unity) in a small office environment. When phones are restarted for whatever reason (switch matintenence, etc), some of the phones register with the DHCP server on the data VLAN vs. the Voice DHCP scope located on publisher. This prevents the phone from contacting the correct TFTP server and registering with the call managers.
I have seperate voice and data VLAN's configured and a DHCP server on each for IP's. No helper addresses are configured on the voice network, so I can't see why the phones are jumping over the the data vlan and dhcp server.
I had the same issue as well. To resolve it, I had to put the switchport access vlan on the phone vlan, let the phone boot once and upgrade its firmware. I was then able to put the access vlan back to the data vlan.
Let me know if this works for you.
We had the same issue, it was a problem with the firmware load for the phone. Either put option 150 on the data VLAN or upgrade the phone load. Hope it helps (assuming it's the same issue).