Looking for logging into the Avast Cannot Server site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Avast Cannot Server site. After that you can login as usual with your login credentials.
https://forum.avast.com/index.php?topic=192990.0
https://support.avast.com/en-ww/article/Troubleshoot-Account-login
https://support.avast.com/en-ww/article/Repair-Antivirus
https://www.bleepingcomputer.com/forums/t/375702/avast-and-windows-update-cant-connect-to-update-server/
https://www.getavast.net/support/compatibility-windows-10
http://www.dslreports.com/forum/r24784748-Avast-Cannot-Connect-to-Server
https://stackoverflow.com/questions/19392087/cant-connect-to-localhost-after-avast-antivirus-latest-update
http://www.sitewizard-support.co.uk/content/26/205/en/avast-_-cant-connect-to-email-server-after-an-update.html
https://github.com/gaubert/gmvault/issues/115
https://mybroadband.co.za/forum/threads/avast-http-returned-server-error.607734/
https://www.youtube.com/watch?v=-_-eSKOs2qQ
https://www.youtube.com/watch?v=dxfxGcrr2bw
https://support.mozilla.org/questions/1131097