Hello, By default it's in V1 with the fibre on top, it's fast. I don't have any information about V2, sorry.

V1

Yes, the WiFi network of the TP-Link Archer BE550 can be switched off if you only want to use a LAN connection with 2.5 Gbps. Here are the steps to disable WiFi permanently: ## Via the web user interface - Log in to the router's web user interface. - Go to the wireless settings and deactivate the WiFi. - Save the changes to ensure that the WiFi remains switched off. ## With the WiFi button - Press and hold the WiFi button on the front of the router for about 2 seconds to switch the WiFi on or off. However, make sure that no automatic settings such as a wireless schedule switch the WiFi back on. ## Via the Tether app - Use the TP-Link Tether app to switch off the WiFi via the app settings. Make sure that all relevant settings are saved to make the deactivation permanent. If the WiFi is switched on again anyway, check whether a wireless schedule or other automatic settings are active and deactivate them accordingly.