Hi All - First time to the forum and new to these IP phones. We are a small group with a mixture of Nortel digital phones and IP phones (1140e). We have two buildings and the 10 IP phones are split evenly between the two locations. The digital phones are only in one location. There are no issues with the digital phones, however, the IP phones in both locations are rebooting every 60 seconds. The screen is on the main screen (and you can get a dial tone when it sits at the main screen) but after about 10 seconds, the screen changes and the message states the server is unreachable and the phone will restart and there is a countdown from 60. I rebooted the phones and I've rebooted a PoE switch and no change. At this point, I'm out of options. I am very unfamiliar with this phone system and phones. Any suggestions would be greatly appreciated...thank you! John