*Is there software for testing an intermittent Arris SB6141 cable modem?*
(Costco item #774054)

As per suggestions by Jeff Liebermann, long ago I bought these college kids
in circa 2015 the $75 Costco Item Number #774054 Arris SB6141 modem, which
they've used in a series of college apartment situations until now.

Lately, their Comcast service has been flaky which the Comcast service
personnel determined today is not due to the Comcast service, but, that the
"signal is not getting out of the modem", intermittently.
o Freeware to test Costco docsys 3.0 cable modem from Windows 10 laptop that has no Ethernet port
https://groups.google.com/forum/#!topic/alt.comp.freeware/105H7OgFl-I

The question for purposefully helpful adults on s.e.r is whether you know
of a good software test of a cable modem that appears to be intermittent.
--
Usenet is a public potluck where purposefully helpful adults help others.