Just installed this unit and everything went smoothly except for one device. I used the same SSID and password as the old network and pretty much everything auto connected, however, I have one device (an old Surface Pro 3) that is refusing to connect. It uses 2.4ghz so I tried switching to WPA2, tried 20mhz, tried updating and restarting deco and surface and it sees the wifi network just fine but always says it cannot connect when you attempt.

I created a 2.4ghz guest network with WPA2 as a test and it connects to that just fine. One of my kids uses this laptop mainly for printing color sheets so it needs to be on the main network so it can access the printer. What else can I try?

Thanks!