I have to disable and enable the IPv4 DHCP server to get it to hand out addresses at least once per week. It’s been doing this since I bought it and installed it a month ago. I disabled the IPv6 DHCP server, but that has not helped. I tried to find how I upgrade the router, but I haven’t had any luck finding that. Here’s the version on it now:
Software Image Name:AR01.02.078.04_092820_711.NCS.10
Firmware Version:01.02.078.04.NCS