OK, I appreciate the information. However, I must say that the performance of the modem so far is less than stellar. The main problem is that download speed varies from an acceptable 28Mbps to suddenly something like 5Mbps. Doing a speedtest I can see that it jumps up and down a lot. When I stream content, I often run into buffering problems.
I am attaching an example of what I am talking about
Do you have any idea how I can address this issue? It did not use to be like this, I used to have a sustained high rate and never had problems with streaming content until a few weeks ago.
Also, what do I make of the fact that the upload light on the modem is yellow, indicating (apparently) no channel bonding?
Thank you for all your help!