I have a client who is seeing fairly consistent problems with their 7920 phones aquiring a DHCP address. The phone boots and associates to the AP quickly, but then stalls on configuring DHCP. After a couple of minutes the phone gets a DHCP address and works fine.
We have checked the DHCP servers and there are plenty of addresses available. We are also running regular IP phones on the same network with the same scopes and not seeing any problems.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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