For what it’s worth, I found the most stable configuration on the latest firmware by disabling DHCP (uncheck) and setting a static IP address on the opensprinkler unit and assigning (reserve) it on the router too. I now have two OpenSprinklers (one at home and one at the beach house) and they have been quite stable. On the unit at home, I run it via a tp link Wi-Fi extender next to the OpenSprinkler as I don’t believe it has enough wifi power to transmit to the wifi router some of the time (even though the wifi router shows good strength). Cheers. Val.