I have a SmartRG SR400AC. The is morning, without us having changed any settings, 50% of devices that worked fine yesterday have wifi problems. The Android 12 phone I’m writing this on is connected fine. My son’s Android 11 tablet won’t connect to wifi and keeps repeating the “Obtaining IP address”. Our Roku is connected fine and my son’s watching a show with it. My work laptop (HP ZBook running Windows 11 Enterprise) is giving the mystifying “Connected, No Internet” message and I can’t connect to the VPN.

I tried “/ipconfig flushdns” on the laptop - although I don’t know if the system admin setup will allow that to work. I have unplugged and replugged the router, and pressed the reset button on the back. No changes. Going to 192.168.1.1, 192.168.0.1, and 192.168.1.100 on the phone’s Chrome doesn’t connect to anything.

Any ideas what else I can do?