03-27-2012 08:08 AM - edited 07-03-2021 09:52 PM
I just recieved new 7921 phones. I cannot get them to pick up a dhcp address
I keep getting DHCP "Timeout's" and " Configuring IP" .
The ould 7921's and the new 7925's work just fine. I have tried removing and
reconfiguring the WLAN and Interface on the Controllers. I even removed and reconfigured
the DHCP scope in Infoblox. I am at a lost. Any ideas?
03-27-2012 04:31 PM
Excuse the basic questions, but have you ensured there are free addresses in the DHCP scope? Are the other working 7921/5's in the same WLAN? If this is a new WLAN, are "ip helpers" setup on the L3 interface sitting on the switch/router if your Infoblox appliance is in another subnet?
Matthew
Sent from Cisco Technical Support iPad App
03-28-2012 12:20 AM
ppellettiere,
Try resetting your phone to factory defaults.
Alternatively, browse to the phone's WLAN settings and you will find an option to "release dhcp." Set this option to 'yes' and exit/save changes. (recalling from memory; these may not be the exact steps.)
I've noticed address stickiness with dhcp config in the 7921 before.
Justin
... typd on tny kybrd
03-28-2012 09:16 AM
Thanks for the information. However, When I updated the code to 1.4.2 the phone came up.
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