@Tony I found the reason for the problem, and a solution. When connecting to a new WiFi network, the Pixel 3 by default uses a "randomized MAC address". That's why the DHCP server was not assigning...

Tony wrote @Denali Delete the reservation within the A7, assign a static IP address on the phone itself. Were you also using ARP binding? @Tony Well, today TP-Link Tech Support gave up. They said,...

@Tony Tony wrote @Denali Delete the reservation within the A7, assign a static IP address on the phone itself. Were you also using ARP binding? Thanks for the suggestion. If Tech Support can't...

No, I am not using a range extender.

I set up a DHCP reservation 192.168.1.116 for my Pixel 3 (need static IP for an app). When I look at the DHCP client list, I see that as an active lease, and all is well, as long as I connect the...