Windows 10: Globe with a strike through circle in taskbar - Internet access but no access to Microsoft365

We have suddenly started to notice several issues with accessing Microsoft365. On desktops we are seeing in the taskbar in place of the network connection a Globe icon with a small circle with a line through it. When like this there is no access to Microsoft365 and the licensing for the product does not reflect the "Shared Computer Activation" that is set for users. There is however, access to the internet for all other things. I have tried this workaround but with no success. I have also tried the usual:netsh winsock resetnetsh int ip resetipconfig /releaseipconfig /flushdnsipconfig /renew

:)

 

windows 10 globe icon indicates no internet access when there is access

With the last couple of Windows 10 updates, I have encountered a problem/bug with the internet icon globe display indicating no internet access when in fact I have internet access
for the most part. It looks like this has been an issue for
years. With the past updates, I just kept restarting my computer until the issue resolved itself but is there a better way to correct the problem? As stated, for the most part I have internet access but there are a few programs that
will not run because they do not detect an internet connection.

Thanks in advance for any advise given.

 

No internet access

What type of security program/s do/did they have installed? I've seen McAfee and Norton both completely block internet access for no reason. Even after being uninstalled they can sometimes still block internet until you run their clean-up programs.

 

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?