> All I meant by Port 05, was it is IP address 192.168.0.5

"Port" has a well-accepted meaning, different from "part of an IP
address". General advice: If you mean "192.168.0.5", then _write_
"192.168.0.5". It's not complicated.

> and I did Google mysimplelink, but nothing helpful was found, [...]

With my weak psychic powers, I can't see what you found, or guess why
you thought it was unhelpful.

https://community.blinkforhome.com/t/what-is-mysimplelink/8313

> I did discover [...]

How, exactly?

> [...] that the device uses a USR-C332 which apparently is a wifi modem
> chip.

"the device"? Or is that your question?

If it's a gizmo which is sold to many device makers, then it might be
unrealistic to expect anyone here to identify it based on (what looks
like) a MAC address and "mysimplelink".

https://dnschecker.org/mac-lookup.php?query=9CA525

If I were trying to identify some mysterious device which appears in
an Attached Devices report -- And I'm only guessing that that's what
you're trying to do -- then I might try some basic detective work, like,
say, powering on/off every "smart" Internet-of-Junk device which I could
find, and see what comes and goes.

I have no better idea which devices you own than I have which
router you're using.

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