Windows 10: Windows 11 Pro, after upgrading router to 6e, can't access internet.

Hi all,First: dual boot Linux Mint and Windows 11 Pro, mainly Linux since Windows seemed to DEMAND I log into Microsoft after 11/2023 update.Hardware:Coolmaster MasterBox MB600L V2 chassisASUS ROG STRIX B550-F GAMING WIFI II motherboard WiFi 6e supportedRyzen 5 5600X with Coolmaster Hyper 212 EVO V2VENGEANCE® LPX 16GB 2 x 8GB DDR4 DRAM 3200MHz C16 Memory Kit - BlackVENGEANCE® LPX 16GB 2 x 8GB DDR4 DRAM 3200MHz C16 Memory Kit - RedSamsung 960 Pro m.2 2280 primary - boot partitions, Corsair MP600 GS 500GB secondary, Toshiba 2Tb external sharedGigabyte Radeon RX 6600 EAGLE 8GSteelseri

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W10 can connect to wider internet but cannot access web pages

I have an odd issue with my W10 laptop linked to Sky broadband in the UK via wifi using a Sky router. The effect is that while I can actually access the internet (I can send and receive emails using Outlook and can connect to other machines using TeamViewer) I cannot access any web site (Google, BBC etc). There is no specific error message, merely that the access request timed out and a suggestion that it may be to do with proxy. I have tried the following:

1. Other systems (W10 and ios) can access web sites using the same Sky router (therefore probably not a router problem)
2. I have sent and received emails using Outlook, so the broadband connection is working (probably not a Sky problem)
3. I have tried two different browsers (Firefox and Edge), no connection (not a browser problem)
4. I am using Windows Defender and have:
   1. Made sure that Firefox is in the list of allowed systems in its Firewall, no connection after a reboot
   2. Turned off the Firewall and tried again - no connection

My next step will be to re-install Windows, but has anyone got any other suggestions? Could it be some sort of virus (I have carried out a complete virus check using Defender) So - any suggestions?

 

Does Windows 10 Pro 64-bit support Wi-Fi 6e and all of it's features?

As far as I know this is not true. Support for WiFi 6E (6-GHz-band)) is depends on OS support and Windows 10 Pro does not officially support it. I searched the web for month and tried it with my own hardware. Only Windows 11 supports the 6-GHz-band.

For reference:

I'm having problems connecting my Intel AX210 WiFi 6E adapter to my WiFi 6E router or access point. What can I do? - NETGEAR Support

 

Windows 11 Pro Upgrade from Windows 10 Pro Edition

No but after it installed the malfunctioning Windows 11 upgrade it was listed as Windows 11 Pro. Microsoft Windows support advised I reinstall Windows 10 Pro and said that Windows 11 is really only meant for new PC's that come with it preinstalled. MSI website doesn't list my 2020 GT76 Titan dt-039 notebook on their Windows 11 upgrade eligibility list so I guess that's why the Windows 11 Pro upgrade failed. I suggest being careful with trying the Windows 11 upgrade despite it stating my notebook was capable of running Windows 11 it was wrong. Luckily I have the original Windows 10 Pro USB Flash drive because the Windows 11 Pro upgrade was so incomplete I had no way of reverting notebook back to Windows 10 without reinstalling from a USB Flash.