Hi,
just updated a couple of MS 225 from MS 14.25 to MS 14.29 overnight and this morning some, not all, VoIP Phone stuck with DHCP. While looking at a affected switchport ,I saw the PC and Phone, but the phone was in the in the same VLAN as the PC. Restarting the phone doesn't help. So rolling back to MS 14.25, also no change.
Mhhh.....so I restarted the the whole switch and after it was back online, the phone was able to get in the correct VLAN.
Any idea why? Is this a firmware problem?
I can't remember any kind of this problem with the catalyst switch series.