Is this caused by Avast?

[wdsellers]

I have 265 websites bookmarked as favorites. On Oct 1st, about half of them can no longer connect. I enclosed a sample of one of these sites. Any  help anyone can provide is greatly appreciated. Google advised to check my antivirus software. i've tried firefox, edge, internet explorer and get the same result.

[davexnet]

Do you have HTTPS scanning enabled ?

[wdsellers]

yes it is enabled

[Asyn]

I have 265 websites bookmarked as favorites. On Oct 1st, about half of them can no longer connect.

Hi, probably related to: https://scotthelme.co.uk/lets-encrypt-old-root-expiration/

[redwolfe_98]

it's possible that the reason the avast program is flagging the website is because the name on the certificate does not match the name of the website.

(it is strange, in my opinion, that the website's certificate is only intended to be used for 2 months)

[wdsellers]

So will this correct it's self?

[redwolfe_98]

try adding the website to the avast program's "allow" list, to allow access to the website, if that is what you want.

to do that, go to "settings/general/exceptions." then "add exception."

[wdsellers]

added but no change

[redwolfe_98]

here is a link for reporting the issue to avast:

https://www.avast.com/false-positive-file-form.php

or, you could try contacting avast's "support," for help with the issue.

of course, one way to resolve the issue would be to uninstall the avast program and to use the "windows defender" av-program, instead, assuming that you are running windows 10 on your computer, which would allow you to use the windows defender av-program.

[r@vast]

I have 265 websites bookmarked as favorites. On Oct 1st, about half of them can no longer connect. I enclosed a sample of one of these sites. Any  help anyone can provide is greatly appreciated. Google advised to check my antivirus software. i've tried firefox, edge, internet explorer and get the same result.

Hi,

Did you receive any error notifications from Avast? I was able to access hxtps://www.wsfa.com/
Disable the shields and see if that makes a difference (Right-click on the Avast Antivirus icon in the system tray > click on Avast Shields Control > select an option)

[wdsellers]

i just removed Avast and no change. About ready to trash the whole computer.

[bob3160]

i just removed Avast and no change. About ready to trash the whole computer.

What other security related programs are installed on your system?

[wdsellers]

I have removed them all.

[bob3160]

I have removed them all.

Unfortunately that doesn't answer the question.
You also didn't state what version of Avast is installed and which product.
Sometime it's important to know how what was install got removed.

[wdsellers]

Avast One Essential