Thanks for taking the time to make and post the pic.
Couple questions for you...
1- Why are you using QoS pri 2 on the inet vlan 35? I didn't think your inet packets would even get processed going out thru the ONT tagged anything other than default pri 0.
2- What about vlan 33? The STBs use this as well as 34, as I have read and observed. I see the STBs and the ActionTec broadcasting ARP requests on 33 periodically. Not sure the extent of its use beyond that.
Refer to File's first post in this thread.