@FrakeTrain A user here.... If you use the same ssid and password, the devices would pick either the 5 or the 2.4 network. If you use same ssid and different password, I would think there would be an...

@transitman500 I have had a cheap security camera do some strange things to my wifi. May want to try and isolate different devices on that ssid. Split some of them to the guest network if not used...

@Eric289 One thing to check is the dns settings on your computer as it can override the routers dns.

@JimmyFortier Somtimes when you change the router, you need to delete (forget) the network on the device and re-establish it.

@Matt_Mc That is strange. I assume you are using bridge mode on the ont. Some things I would try. Power cycle after each change. power off ont and router and power on as per the user guide. Connect...

@Jammers the user guide for that router says to use the 2.5 port. Be sure you power off both the modem and router as the doc shows in the connection section of the user guide.