[ale] Slightly OT: Reasonable Latency with Comcast Business

[neal at mnopltd.com]

This feels like a classic three party finger pointing exercise, and I'm 
doing a bit of research before we jump in.

A couple of years ago, our church put in a sophisticated (at least by MY 
Measure) Ubiquity Unifi Mesh network, mostly to support security camera 
for the community pre-school.

The core is a UDM Pro router, feeding all Ubiquiti stuff.

And it has run totally steady.

Here's the rub: Now that the "Last Guy That Touched it" moved to 
Florida, I'm getting multiple alerts per day to the effect of:

  	* Your primary internet Comcast Business was disconnected and has been 
restored multiple times in last 24h. If this persists, please try 
restarting your ISP Modem.
  	* Primary internet is experiencing high latency. Please restart the 
modem or contact the ISP if this persists.

Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaand, nobody complains.    Occasionally, 
I will see Zoom meetings from home where the church participants go 
really fuzzy and blocky, like Zoom has downshifted their resolution.

Apparently it measures ping time to Ping.UI.Com to decide this.

The Unifi Console reports the Comcast Business router as providing 
typical 14ms latency.   With the occasional spike to 45ms.

When I ping that address from my Uverse internet from home, I'm seeing 
consistently results from 7ms to 10ms.

I don't know whether to ask Ubiquiti about raising their thresholds, or 
Nag Comcast about their performance.   I guess I could ask Ubiquiti 
precisely what does "Internet Disconnected" mean?

My personal experience with Business Comcast in the past has been....... 
not impressive.   Usually, a service call just makes it worse.     Is 
Comcast going to take my report from Ubiquiti seriously?   Or tell me to 
pound sand?   What additional evidence need I present?

Yes, I could spend a quality hour in the furnace room, with a notebook 
connected to the LAN side of the Comcast router, (the only way I can 
talk to it) and see what I can see.

I suppose I could just call Comcast, and give up another hour of my life 
to try and talk to someone with a clue.

regards,

Neal
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