I have a 7936 polycom that is displaying the error message "Cannot contact tftp server". I have reset to factory defaults, verified that it is not connected to a trunked switch port, and connected it to a known working power supply/switchport that another 7936 is working from. Only difference between two phones is firmware load versions.
Working 7936 app load = 7936.3-3-14-0 rev 16
Non-working 7936 app load = 7936.3-3-2-0 rev 14
- I can ping all tftp servers in UCCM cluster from this phone, but firmware upgrade does not work due to tftp contact failure
Is it necessary to manually upgrade firmware before tftp server(s) can be contacted? ..if so, is manual upgrade possible via bypass of the tftp service on an ip phone?
Any suggestions would be most helpful and I rate all posts!! :-)