cant access wikipedia.org due to security certificate error SEC_ERROR_UNKNOWN_ISSUER
for the last few days I have not been able to access wikipedia.org due to security certificate error SEC_ERROR_UNKNOWN_ISSUER as wikipedia is a very mainstream site I am surprised they would have this issue. It affects firefox, chrome and MS Edge
ప్రత్యుత్తరాలన్నీ (2)
How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites https://support.cdn.mozilla.net/media/uploads/images/thumbnails/2017-06-07-08-34-22-cb6da3.png
https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER
Since all of your browsers are affected, it may be some external factor such as:
- security software that filters your web connections
- "parental control" software that filters your web connections
- firewall software
- ISP settings error
- proxy server settings error
- private VPN/Hola/TOR settings error