And pray that the device in fact remembers to use the fixed IP address it was assigned. Five of the devices in my network decided to forget the assignment, and go back to using IP roulette. Another...

The WPA4220 does not act as a DHCP client, and never issues a request to a DHCP server; so I do not see how setting up a reserved IP address will be of any help.

Setting a fixed IP address on each WPA4220 has helped greatly; until the WPA42220's decided to forget that they had been configured with fixed IP addresses, and resumed their novel practice of...