Content
Introduction
The Snom M900 base station can have issues with the LLDP protocol when used in the local network, which would lead to the base station unable to get an IP address via DHCP even after a factory reset: this can be noticed because the LED on the base will keep blinking orange, as it's trying to acquire an IP address, and the M900 cannot be found either via network or using the discovery mode with a Snom handset.
Fault: The base station does not get an IP address after factory reset
Cause: In the network LLDP packets are sent with a VLAN ID and a network policy, these force the base to reboot into the voice VLAN, in which DHCP request do not exist and hence no IP address is assigned to the base station
Verification: Take the base to an isolated network, for example an unmanaged POE switch with DHCP but no LLDP, and factory reset the base: it should get an IP address and you should be able to access the web interface
Resolution: Make sure LLDP packets are not being sent to the base stations in the network and factory reset all of them, they will acquire an IP address from your DHCP server
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