PC Internet/Wifi keeps disconnecting/slow internet

My issue is that my PC internet keeps disconnecting or gives me slow internet speed. For context I recently switched from Gateway model XB6-T to XB8-T. So far other  devices like phone and smart tv works fine but my PC which uses an ethernet adapters(TP LINK AV1000) gives me issues. At first if I reset and unplug and plug in the new modem(XB8-T) my internet is fine but after a maybe 10-15 minutes it disconnects and I have to reset the whole thing all over again. Is there any solution or fixes for this? I will provide as much info as possible. Edit: On my xfinity app it says the wired connections is fine even though my ethernet adapters says the internet doesnt exist/work. 

Methods Ive tried:

Restart PC 

Reset Gateway and reset pairing of ethernet adapters

Put Modem on top of shelf so nothing near it creates "noise" like for ex: microwave

Tried all ports and used only one that show green light instead of amber light

Have not tried bridge mode yet

Tried changing security mode to WPA2(default is WPA3 Personal Transition)