Phones not registered

[acerda]

I have some telephones 7940 that appeared not registered, I made factory reset from the telephones and delete and add again on callmanager but I cant get register again.. please any suggest

Andres

[paolo bevilacqua]

What the phone shows ?

[acerda]

configuring IP

only today appears not registered

[paolo bevilacqua]

Check switch port configuration and state, DHCP service on CM.

[acerda]

DHCP is given for a separated server , the starneg is that only specifics phones ..I will check , but the switches are giving services for other phones that wroking well

[paolo bevilacqua · Accepted solution]

You may have a problem on the switch, port error disabled, etc. So check that DHCP requests hits the server in first place.