Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

SEC_ERROR_UNKNOWN_ISSUER and AVG

  • 4 fhreagra
  • 1 leis an bhfadhb seo
  • 4 views
  • Freagra is déanaí ó FredMcD

no1wammy
no1wammy
more options

I am also having the SEC_ERROR_UNKNOWN_ISSUER problem where web browsing is impossible. However, when I tried to research the troubleshooting article with anti-virus programs being one probable cause (https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER ), the article did not have a mention for AVG, the anti-virus program I use. One time, I tried clearing my web browsing and cookie history to see if it would fix it, but to no avail. Did a virus scan - that didn't work. Followed by the Adware Cleaner - that too was a failure.

The only way I was able to fix this problem... was to restart my computer.

I am also having the SEC_ERROR_UNKNOWN_ISSUER problem where web browsing is impossible. However, when I tried to research the troubleshooting article with anti-virus programs being one probable cause (https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER ), the article did not have a mention for AVG, the anti-virus program I use. One time, I tried clearing my web browsing and cookie history to see if it would fix it, but to no avail. Did a virus scan - that didn't work. Followed by the Adware Cleaner - that too was a failure. The only way I was able to fix this problem... was to restart my computer.

Athraithe ag no1wammy ar

All Replies (4)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

Hi no1wammy, sorry the article hasn't been updated yet, but AVG now works like Avast and you could use the advice for Avast (perhaps not exactly).

The only way I was able to fix this problem... was to restart my computer.

That's a good strategy!

no1wammy
no1wammy Úinéir na ceiste
more options

Eh, best the article be updated to include AVG, just in case. While instructions may be the same, name conventions could be different. Better safe than sorry.

Shadow110
Shadow110
more options

Hi, yes someone will get to that...would you care to ?

AVG is no owned by Avast so please visit both Community forums for work arounds, see what others are doing etc...

Restarting your computer is actually a must do and should be done on a daily basis.

FredMcD
FredMcD
more options

Separate Security Issue: Update your Flash Player or remove it using these links; http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html Uninstall Flash Player | Windows http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-mac-os.html Uninstall Flash Player | Mac

Note: Windows users should download the ActiveX for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX.

Flash Player Version: Version 29.0.0.171

https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only> +++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration