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can modem block DOCSIS docsDevResetNow command?

Have C7500 running latest firmware V1.01.37 certified for Comcast Xfinity ISP.

 

Can modem be configured to block DOCSIS docsDevResetNow command sent by ISP causing modem reboot?

 

C7500 is customer-owned (versus rented) modem approved to work with ISP -- as customer-owned modem, C7500 does not contain ISP's proprietary firmware they install on their rented modems allowing their remote troubleshooting tools, and as such ISP claims they cannot/do not manipulate customer-owned modems.

 

Despite ISP claims, have been able to demonstrate thru ISP's customer online self-help tools as well as ISP's technical support, that ISP can still remotely command modem reboot, which is logged in C7500 Event Log as event description "Resetting the cable modem due to docsDevResetNow"

 

Do routinely monitor C7500 for issues, and no operational problems nor errors logged appear to indicate problems necessitating modem reboots, plus error log datetime stamps of reboot events seems to point to simple ISP routine maintenance (which they should not need to do with customer-owned modems) -- such unannounced, unscheduled reboots cause havoc with downstream devices have connected to C7500 LAN; since ISP seems unable/unwilling to stop sending seemingly unnecessary DOCSIS docsDevResetNow command to reboot modem, can C7500 itself be configured to block such command?

Model: C7500|Nighthawk X4-AC3200 WiFi Cable Modem Router
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antinode
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Re: can modem block DOCSIS docsDevResetNow command?

> [...] as customer-owned modem, C7500 does not contain ISP's
> proprietary firmware they install on their rented modems allowing their
> remote troubleshooting tools, [...]

 

   You underestimate the degree to which a cable-TV ISP controls your
modem(+router) when it's connected to their network.  One of the primary
purposes of DOCSIS is to ensure that control.

 

> Despite ISP claims, have been able to demonstrate [...]

 

   I'm not amazed.

 

> [...] can C7500 itself be configured to block such command?

 

   I'd be amazed if that were possible.

 

   If your complaint is that your ISP does undesired things with your
modem(+router), then I doubt that you have any recourse other than to
deal with your ISP (or its local regulator).

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