help whitelisting domains and unblocking ports

I have my modem in bridge mode which I assumed with mean no blacklisting or port blocking. Unfortunately my Ubiquity router will not connect to Ubiquity's remote access portal. Ubiquity says the logs show MQTT errors meaning Xfinity is blacklisting domains or blocking ports. The say I need the following domains whitelisted and the following ports unblocked, but I cann't find a way to contact Xfinity to do this. Has anyone been successful with this? 

domains that need to be whitelisted:

turn.cloudflare.com
stun.cloudflare.com
sso.ui.com
cloudaccess.svc.ui.com
setup.svc.ui.com
cloudfront.net
amazonaws.com
*aws.com

Ports that need to be unblocked: