Open Port:23 Telnet Warning

[Cptrossco1]

Lately I have just started getting the warning in the Notification Center that there is an open port (23) on my smart.mesh router.
I have read the instructions 'how to fix' .....and have logged into my router but there is no facility anywhere to turn off any ports via the admin login on my router which is supplied by internet service provider in New Zealand.
GRC.com reports that this port is closed. I know I can 'ignore' the warning in the notification center, but I can't understand why I'm getting this warning at all?
Can I just safely ignore this as there is no way for me to close any ports in the router and I don't use Telnet or understand fully how one would use this specific port anyway.

Kaspersky Premium : 21.17.7.539
Windows 11 Pro : 23H2
 
 

[Berny]

@Cptrossco1

IMO you can ignore this proactive recommendation , also please take care to keep your router firmware up to date.

[Cptrossco1]

Ok, I'll think I'll go with just ignoring this notification!!  I contacted my service provider who supplied my modem router and they told me that my firmware is the latest.