After uninstallation of Elements Agent from Windows device it loses internet or network connectivity

Issue:

After uninstalling Elements Endpoint Protection Agent from a Windows device, the computer loses internet connection. Every network connection is blocked. 

Resolution:

When Elements Agent is uninstalled, it will remove the following outbound firewall rules created by the WithSecure firewall profile:

• Allow outbound UDP traffic
• Allow outbound TCP traffic

This means that if the Windows Defender Firewall default outbound setting is set as: 

• Outbound connection that do not match a rule are blocked

The device will not be able to connect anywhere since firewall is blocking the connection.

You need to either:

• Manually set the default rule for unknown outbound connection to be allowed
• Restore the default policy for Windows firewall

To manually set the default rule for unknown outbound connection to be allowed:

1. Open Windows Defender Firewall with Advanced Security on the Windows computer
2. Go to Action > Properties from the top menu
3. From the Domain profile, Private profile and Public profile tabs, set the Outbound connections as Allow (default)
4. Click OK

To restore the default policy for Windows firewall:

1. Open Windows Defender Firewall with Advanced Security on the Windows computer
2. Click Restore Default policy from the right side of the window