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EN2251 sudden high high ping, packet loss- phone support says modem fine...
I need to get to the bottom of serious lag induced issues that disrupt and bring down my remote work capability. It is sporadic which has made the 'plug it into another PC' option impossible.
I have the EN2251 plugged directly into a known genuine Intel dual NIC. That NIC is on hardware, 16gb ram PC running pfSense (overkill, I know).
Randomly with no predictability the network connectivity will drop- and the gateway monitor (pfpinger) will show increasing packet loss and eventual disconnect.
According to the technician I spoke with on the phone, all of the disconnects were on my side of the connection- and then self restores after anywhere from 10 sec to 4 minutes. He also stated company policy prohibits sharing 'admin' information showing power levels and t3/t4 error, etc- that's another gripe for another day.
These issues occurred in the past, too, and Spectrum support stated it was because my 3.0 modem 'couldn't handle the bandwidth' (8down/4up) and had nothing to do with the service work going on down the road- and that I'd have to deploy a new modem (the EN2551 was all they had). Coincidentally the problems went away when the work stopped, and things have been fairly stable until recently.
There is no evidence or report of 'flapping' in the log files on the pfsense and no indication of quality connection issues on any other interface (as if the hardware itself was becoming unresponsive).
I don't care to really drop nearly 200$ on another modem to get around this issue but:
How do I diagnose this and resolve it?
You're aware the Puma7 chipset in these modems are notoriously bad...
I actually do have a complete setup of identical hardware for the pfsense box and was going to deploy it in order to demonstrate there isn't a problem - but then, how do you prove a negative?
Suggestions, please, as these disruptions have already come during conference calls- had I not installed an LTE cellular modem as an alternative gateway I would have completely missed paid work (and no, there's never been any issues with that connection going 'down' even though it uses the same hardware)
Thanks in advance.