Motorola MT8733 - Wifi randomly drops and requires radio cycle or reboot

I've contacted xfinity and Motorola about how my wifi will randomly stop working. I reached out to Motorola first and reported the "An authentication error has occurred" error I was seeing and they wanted to see my downstream power and SNR levels. They told me -7/+7 for power levels and 35-50 for SNR is spec. The levels I sent them at the time they requested showed I had three or four downstream channels slightly higher than 7. The highest was like 8.2 but most were 6.x - but my SNR values were in spec. They said I should disable band steering where the 2.4 and 5G radios both work but are effectively listed under a single SSID. I only have a couple devices that require the 2.4 signal but was fine doing this. Now I have two SSIDs, one for each radio. After this, my "authentication" errors seemed to stop. They did say to have an xfinity tech come out to check my signals and indicated that the power levels being out of spec would cause my wifi to stop working or the modem to disconnect. This seems bizarre to me but I had the tech come out. He never even stepped inside my house. He told me on the porch everything was in spec from the xfinity side of things and suggested that the downstream channel power levels would have nothing to do with the wifi dropouts. This kinda makes sense to me as it seems like the modem is getting signal... but the radio isn't transmitting it (wired devices never have an issue).

Anyway, while the authentication error seems to be resolved by disabling band-steering, my wifi connections still randomly drop - meaning devices that are connected wirelessly just stop getting internet data. For me, it's typically the 5G network that drops as I only have 2 devices on the 2.4 network and like 25-30 on the 5G and I only notice the issue on the 5G. From reading other posts in this forum, this seems to be a common theme with this modem... yet none of the posts really nail down a solution that doesn't involve power cycling every other day. 

What I have done when this happens is use the MotoSync app for the modem to turn off both SSID radios, wait 10 seconds or so, then turn them back on and magically everything will work again and this is much faster than a full power cycle/reboot. This is NOT a solution though. From what I can tell this is one of Motorola's flagship modems at the moment and for what it costs, should not be having issues like this. I can't tell if it's the modem, or if it's xfinity... but having them point fingers at each other is getting annoying and I'm tired of having everyone in my house look at me like it's my fault.

The event logs for the modem regularly post these "Critical" messages, but I'm not sure what any of them mean:

• UCD invalid or channel unusable;
• Started Unicast Maintenance Ranging - No Response received - T3 time-out;
• SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing

Common "Notice" messages include:

• CMSTATUS:US_Diplexer_Mode_Change:
• Honoring MDD; IP provisioning mode = IPv6
• CMSTATUS:US_Diplexer_Mode_Change:TLV-84,42
• CMSTATUS:US_Diplexer_Mode_Change_Ignored:MDD-TLV21,85
• DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3

In all of these, I cannot say the timestamps related to the wifi dropouts so I'm not sure if they're related or not but I'd like to ultimately know how xfinity can say they support this modem when it needs to be rebooted nearly every day or the radios cycled off/on. Motorola... even if the signals fall out of range for a bit why can't you self-heal, no need to cutoff your connected clients!