arris s33v2 eero 6e pro signal issue

This may or may not be the root cause of the problem (YMMV) but it should be addressed regardless. Yep. The power levels are marginal to out of spec. And they may be intermittently fluctuating even farther out of spec. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.

In an effort to try to obtain better connectivity / more wiggle room, check to see if there are any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage from Home Depot, Target, Wal-Mart, etc. Splitters should be swapped with known to be good / new ones to test.

Also check the coax cable for any damage such as cuts, nicks, abrasions, kinks, sharp bends, etc.

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two-way splitter connected directly off of the drop from the street / pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.

Hello @CraigC2, thank you for packing so much detail into your post and for doing some diagnostics on your end. I'd hate to make you repeat any troubleshooting steps, so let's start on the same page. What steps have you taken to this point? Also, have you confirmed that your new modem has been added to your account, or Activated?

@CraigC2 

Have you had a chance to try any of that stuff ?

I replaced the splitter last night with one that had the specs you gave me. The signal is now within expected parameters. 
I am still having issues with video calls on my laptop however I no longer believe it is a modem/wifi/internet issue as my phone is able to connect to WiFi and conduct high fidelity video calls with no quality issues. 
It appears to be isolated to my laptop so I will see what our corporate IT team is doing to hinder the performance. 
Thanks all for your help here!

Response from our IT department in case it helps others.

Ah, well, theres your problem!

The workaround is to configure a guest network and put ONLY your work laptop on it. The "packet routing" of the Eero brand doesn't play nice with several different Enterprise-grade platforms, in this case, Forticlient.