@NickDA Are to talking about your modem or your router which is two different things unless you are using gateway? some have reported an issue to signing on to their modem when using a TP Link...

@SparkyBoy If you click on the blue router name in your post or go to the TP Link web site for that router, then click on the Specifications tab, you can see the streams under the WIFI section (8).

@JQuin If you are using Smart Connect, turn it off and set up two different SSIDs. That way you can control which devices are on each network. Show SSID, do not hide. If you are using a VPN, try...

@larry1210 Not that I know of.

@AbdurRafay Use only version 5, the one that matches the router. Otherwise you can brick the router.

@fasfas What Ethernet speeds are you getting? What mode is the router in? What is the Cat number of your Ethernet cables?