Windows 10: "connection not private notice" received on trusted sites

I have started receiving continual notice of "connection not private notice" on most websites I have visited in the past. I use Windows 10.* Moved from Community Center

:)

 

Unable to connect to trusted site

I attempted to go to a
website and was given a message that my computer could not connect to the site. I tried all four computers on my home network and was not able to connect.

I was able to connect to the site at work, only after receiving a message that the site had a bad security certificate. I contacted the site and they are aware of the problem and working to fix it.

I trust the site so I made it a trusted site in the security section of the internet options on the tools menu. I also unchecked the require server verification box.

I checked the time on my computer and it is correct.

I am still unable to access the site.

All pc with windows 10

Any suggestions?

 

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?

 

Trusted Sites

I have an issue with one particular website that I use for work - I have to use internet explorer for this particular website and can't use Chrome. I am currently using Windows 8. This website has a certificate which is up-to-date and valid. I have added
the website to the trusted sites list and it saves it here. However, once I close internet explorer down and then re-open it and try to go back to this website I have to remove it from the trusted sites list and re-add it before it will run the certificate.

Any ideas? Driving me crazy. If I leave internet explorer open - but close that page down and re-open it, it works but if I have come out of internet explorer I have to re-add it to trusted sites.

Any help would be appreciated.