AVG Enhanced Firewall is blocking uploads to Synology NAS server

Hello Steve,
I'm sorry for any inconvenience caused. In this case, I request you to change AVG Firewall network profile to private (open AVG Internet Security > menu > settings > components > firewall > customize > network profile > change all the network public to private), please go to Firewall customize settings again > scroll down > click on system rules > enable all the system rules if it's not configured, please click OK and check if you can upload to Synology with enabled AVG Internet Security.
Best regards,
Alok.