After upgrading or downgrading Symantec Reporter, the configured proxy settings are disabled.
This may result in connectivity issues for external communications that rely on the proxy.
When Reporter is upgraded or downgraded, some configuration files are reset as part of the installation process.
Because of this, the proxy settings are cleared and end up disabled once the process is finished.
At present, this is expected behavior.
To restore connectivity after upgrade/downgrade :
Verify connectivity by checking update tasks or network communication.