Wifi7 issues connecting Surface Pro devices

[fuzzyduck121]

I have a very specific issue having just upgraded to Wifi with EE

Equipment at home is the new EE smart hub pro router wifi 7 and 2 pro Wifi 7 mesh extenders

we have zero issues with speed and connection but upon restarting the router when adding an extender I have 3 microsoft surfaces all of which wont connect to the wifi anymore

I have 20 other devices all connected with zero issues

I have tried to connect all 3 microsoft devices to the Compatible network and guest network as well as the standard one and all 3 say network connected but no internet available and wont go online

I have changed wifi network name and passwords to try and reconnect with no success and have also disabled 5hz and6hz at different times to see if it works

I have also forced devices to forget and the re-find the networks with no success

Does anyone with experience of this setup or specific IT knowledge know how to help?

I was thinking of disabling the mesh and just connecting to the router alone to see if its the mesh or extenders that are the issue but other than that I am out of options

thanks all

[XRaySpeX]

Are you making the Compatible WiFi 2.4 GHz only? The public EE WiFi network will be low grade only.

[Ewan15]

@fuzzyduck121  By now you have probably tried most of this

The Surface Pro 7 absolutely supports 5 GHz Wi‑Fi. It uses a dual‑band 802.11ac (Wi‑Fi 5) adapter, so it can connect to both 2.4 GHz and 5 GHz networks. If yours isn’t connecting, it’s usually a driver, channel, or router‑setting issue rather than a hardware limitation.
How to confirm your Surface Pro 7 is using 5 GHz
• Open Settings → Network & Internet → Wi‑Fi → Hardware properties
Look for Network band: 5 GHz.
• Or open Device Manager → Network adapters → Marvell/Intel Wi‑Fi → Advanced
Ensure 802.11a/ac modes are enabled.
Common reasons it won’t connect to 5 GHz
1. Router channel is unsupported
Some Surface devices struggle with DFS channels (52–140).
Try setting your router to 36, 40, 44, or 48.
2. Driver issues
Surface devices have had known problems with certain Marvell drivers causing 5 GHz connection failures. Updating or rolling back the Wi‑Fi driver often fixes it.
3. Router is combining 2.4 GHz + 5 GHz under one SSID
Split them into two separate network names so you can manually choose the 5 GHz one.
4. Distance or interference
5 GHz has shorter range. If you’re far from the router, the Surface may fall back to 2.4 GHz.
Quick checklist

Try this sequence:
• Set router 5 GHz channel to 36–48.
• Ensure 802.11a/ac is enabled in adapter settings.
• Update or roll back the Wi‑Fi driver.
• Forget the network → reconnect.
• Reboot router and Surface.

[fuzzyduck121]

Yes the compatible has only 2.4 switched on 

[fuzzyduck121]

I am at a loss here and I have no idea what else to do other than ask for a new router or change ISP

I want to state the full facts in the hope someone who is an expert can solve this

The internet to the house is perfect

I have 20 devices working perfectly including laptops and a surface go 3 plus tvs etc 

the other two surfaces worked fine until a router restart and now won’t allow internet access via the main router network or the compatible or guest networks either 

both surfaces are able to connect with a mobile hotspot, are able to connect via an external usb network adapter when one is plugged in and both can connect to the public EE WiFi via the same router 

I have tried all the above and updated network drivers, altered the adapter settings, I have flushed the dns and run all cmd commands suggested, I have forgotten and readded the networks including changing name and password 

they both connect fine to the networks but say no internet access available until I swap to the public hotspot and then it works perfectly 

the fact that the both connect to the hotspot on a phone and to the public WiFi on the router means the only possible explanation is that there is a router setting causing the issue but I have no idea how to identify it . 

other than a factory reset which may or may not work does anyone have a fix 

thanks 

[bobpullen]

Given everything you've tried, it might be time to bite the bullet and go the factory reset route.

When in the connected/no Internet state, are you able to browse to the router admin at http://192.168.1.254?

Unlikely, but is there any possibility that there's a parental controls schedule configured that's targeting the surface devices? Are you able to log into the EE App to check?

Does the output of 'ipconfig /all' from a command line provide any clues?  In particular the IP address, gateway and DNS addresses being assigned to the network adapter when in this state?

[Ewan15]

@fuzzyduck121  Have you tried disconnecting from the WiFi on your Surface and then forgetting the EE networks linked to your router?

Settings-> Network & Internet  ->  WiFi -> Manage Known Networks.

Restart your Surface after doing this to clear any registry entries