RAX40 frequently clash with Surface Pro 6 and Surface Laptop

[subs_rlau]

My firmware version is v1.0.3.80_1.0.1. No issue for other devices using the router RAX40, except Surface Pro 6 and Surface Laptop. The Surface Pro 6 and Surface Laptop Wifi network card intermittently corrupts and disconnects with the RAX40.

The Surface devices work well with other networks, say Wifi shared by the tethering from mobile. Any advice?

[plemans]

have you checked the drivers? Anytime theres an issues and its related to a specific device/line of devices, It makes me suspect its drivers. 

And I know there was some issues with the surface line of wifi cards/drivers. for example

https://www.computerworld.com/article/3429590/new-surface-firmwaredriver-update-knocks-out-wi-fi-on-...

As well as there's been issues with windows 10. Are you on preview versions? 

I'd check into getting the direct driver from the manufacturer like marvel/etc to ensure you're on the latest. 

Also, have you noticed a difference if its connected to 2.4ghz or 5ghz?