AVG is one of the popularly used antivirus software among the users across the world. It protects your device from all kinds of online threats, including viruses, malware, spyware, malicious software and even Petya ransomware. All you need to do is install and activate it on your device; and it will automatically scan your data and files after a regular interval of time.

Apart from ensure safe and secure web browsing, it also checks all the attachments you download from your email. To bring new enhancements and to fix errors, AVG antivirus range is regularly updated by the company. An AVG user must update this antivirus software in order to improve the security level. While updating one may find several errors and one of them shows the following message:

"The connection with update server has failed"

This error occurs typically when there is no internet connection or when AVG cannot reach to its update servers. However, this error has a solution and we have mentioned it just below. But, before you follow them make sure your operating system is updated to the latest version.

Check AVG server connection

One of the possibilities to make this error occur could be “the connection to the AVG server is blocked”. This happens when you use firewall or some content filtering applications. To troubleshoot this, make sure these applications or the firewalls is not stopping AVG from connecting to the internet. You can also disable the program temporarily till your AVG gets updated.

Your internet connection is not fully functional

Correct this problem by following these steps for Windows 10:
Click Search and then Control Panel
In Network and Sharing, open Network and Sharing Centre
Right-click the connection you use and click Disable it
Now, Enable it again

Check your internet connection settings

Incorrect internet settings, including DNS server details can also cause this error. Generally, viruses or malware that affect your system also affect these settings. To fix this, follow these steps (Windows 10 users):
Open Control Panel and then open Network and Sharing Centre
Click Change Adapter Settings
Right-click the connection you use and choose Properties
Now, double-click the Internet Protocol (TCP/IP) item on the Networking tab
Once done, check and alter the internet settings, including IP address and DNS, according to your Internet Provider
Click OK to confirm the changes
Close the Window

If the problem still persists, then contact AVG customer support team and get this error fixed by a certified technician. The team operates all day long; so you can call them anytime as per your convenience.

Source: http://help-number.com/blog/how-to-troubleshoot-avg-update-error/