I m using ‘’ FreePBX 15.0.16.42" sangoma with Polycom Phone 550 , since 1 week i face an issue with error message (duplicate IP addreess with Mac address…)
The problem is that there is no Duplicate Ip adress at all , there is a specific VLAN and when i put a fix IP address i face the same issue .
if you’re using a mix of static and DHCP addresses then it’s very likely you do have a duplicate IP address. Double check all of your DHCP pools to make sure they do not overlap any of your IP addresses.