IP 2001 DHCP Parse Error

[mattwc1]

CS1000, Rls7.5, all phones are DHCP all same node. After a power outage in one of our buildings all of the IP 2001's and 1110e's went down and stayed down. Then it spread to the rest of our system and 2001's and 1110e's in other buildings went down. They all say DHCP Parse Error, DHCP server unreachable. All of the 1120e and 1140e phones at all locations are working fine. I upgraded the firmware on the signaling server for all models of phones. I rebooted 1120e and 1140e phones that both upgraded firmware and came back on. When I reboot 1110e and 2001 they give same message and do not upgrade, DHCP Parse Error, DHCP Server Unreachable. I can give the 1110e and 2001 phones an address to reach S1 and they both will upgrade but when I change them back to DHCP only the 1110e will come up, the 2001 say DHCP Parse Error, DHCP Server Unreachable. I can go to each 1110e and manually upgrade and go back to DHCP, but I can't get the 2001 phones to go back to DHCP. Help!

 

[gteabc]

matt, sometimes when this happens in our system it seems to be that something in the data network has changed.
The data group always say's they have not done anything to the switches but we have to set the voice VLAN
to NO for it to come up. Or check one of the phones that is up and see what VLAN it has acquired and enter
VLAN id manually and see if it comes up.
It seems that after it registers and updates all its configuration we can go back and change the voice VLAN to auto. Hope this helps
You might ask the data group what VLAN id the have set in the switch for voice.