I currently have Verizon FiOS. our downstairs router is connected through Ethernet. but the rest of the house is wired with coax. we have an extender from Verizon that works off of the Coax it is a different wifi signal than the router downstairs. same name but with 5G after it. our internet speed is fine at around 350 MBs. the router is my upstairs bedroom and is connected via Ethernet to my gaming PC. my problem is that when I am Gaming are entire WiFi slows down to the point where WiFi devices cant connect to the internet. I have no issues when gaming no lag spikes or drops. my knowledge is limited on this any help or solution would be greatly appreciated.