Avg not updating from server
This should be enough to replace and restore all of the software's core components and remove any temporary data cache that was preventing updates from proceeding normally.
Temporary files can also be cleaned from AVG manually through the advanced settings menu.
The above graph displays service status activity for over the last 10 automatic checks.
The blue bar displays the response time, which is better when smaller.
If malware has taken root on your system, it may try and prevent AVG Anti Virus from updating itself in order to remain undetected.