So you don't have a Comcast modem?
I use the MoCA built in to the Comcast Modem regularly. It works fine.
Maybe hook it up again so you can at least read the MoCA Signal Levels off the Modem?
I think the MM1000's have a gui where you can get level info, too, but I don't know it's login info.
I managed to get a little time just now and tried enabling the Comcast internal MoCA. PRESTO, BINGO! Thank you very much for pointing me back in that direction. I disconnected the MM1000 on the modem end and turned on the internal MoCA. As mentioned above, the laptop at the modem gets 170 Mbps and WAS getting around 70 at the remote end. Well now, it is also screaming on the remote MM1000 at 170! That also caused me to remember the specific reason I had previously with the internal MoCA not working. I had enabled it and then connected my single MM1000 at the remote, but it wouldn't work. That's when I called Motorola. He advised me to buy a second MM1000 and connect it at the modem. I did that, and it STILL wouldn't work. I called Motorola back and he asked me how I had them connected. Long story short, I found out I needed a splitter at the remote end. After that, since it worked, albeit slow, I never considered going back to the internal modem MoCA!
While we're conversing (I really appreciate your input into this entire matter), I have a tangential question to this remote end of the network. I have a 2 or 3 year old Belkin router connected to the remote MM1000. The laptop gets it's 170 Mbps when plugged into this router. Also, the usual devices are connected i.e. DVD player, Amazon Fire Stick etc. The tangential question concerns the WiFi speed from this router. First, my iPhone WAS getting around 170 Mbps (Oh, I forgot to mention that I have a desktop at the modem location. The Comcast line is rated at 200 Mbps. The desktop flies at 230-240 Mbps). The iPhone is now screaming on WiFi at that remote location at 230-240 as it does on the Comcast internal WiFi. The actual question involves an older HP desktop (around 2012) that I keep across that remote room. It has a USB WiFi adapter. Its speed is all over the place. The laptop may vary a little on its internal WiFi, but not like the HP. The HP will swing anywhere from 35 to 65. The laptop will run more consistently around 50 to 60. This is no change from when I was using the MM1000 connected to the modem. The laptop is probably not quite as old as the HP.
I have tried two different USB adapters in the HP, but to no avail. Also, 2.4 GHz seems to be better than the 5 GHz is, although my recollection is that when I first put the HP in this room, it ran better on the 5 GHz from the WiFi. At first I thought it was something with the WiFi in the Belkin router, but seeing the iPhone fly now (on 5) , maybe I need a different type of USB WiFi adapter in the HP. My last step would be to run a LAN cable. Any thoughts? Thanks again for any help.