@Kam Yes. They are both on FULL mode. I just factory resetted both adapters. There's no setup process. The MoCA light came on and I'm still getting the same lousy speeds. Thanks for your help but at this point I'm giving up. Going to return it.

@Kam Though I don't think it's plausible (both machines are on LAN ports), I tried directly connecting the two machines directly with WF-803FT without a router and set static IP for both on the same subnet. Still the same shitty 30Mbps speed.

@Kam Here's my setup (just for testing. They are all getting the same lousy 30MBps speed with any coax cable I use). No splitters. One end goes to my mini-PC and the other end goes thro R7000 that goes to my NUC PC. I am getting GbE speed if I just skipped the MoCA pairs and connected the CAT6 directly to my mini-PC.

@Kam Mine is the same as yours, one straight cable end to end without any splitting or sharing with CATV (no cable service either). That's why I was wondering why you can get full GbE speeds while I don't despite we both have the Frontier adapter.

@Kam My lights are all green as well. My WF-803FT shows 701/3656 while yours show 701/3655. Pretty close to yours. For some reason, after I enabled the security button, I was able to get the MoCA light on in FULL mode even with Preferred NC checked for both WF-803FT. However, the speeds are still roughly the same (32MBps Tx, 28MBps Rx)

@Kam Thanks for your reply! That's my setup too. I also have it in FULL mode. Did you have trouble that the MoCA light won't come on if you set both in FULL mode until you disabled Preferred NC?

Can you share the settings you have to achieve GbE speed? I have two boxes connected with a simple 6ft coax cable right in front of me and I'm getting 280Mbps(up)/380Mbps(down) while a direct GbE/CAT5e cable gets me around 950Mbps. I tried WAN/LAN/FULL pairs and none they don't behave any differently. I have a WF-803FT like you do. Thanks!