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How to close a port

Posted: Fri Nov 17, 2017 12:54 am
by chiPersei
I ran the SG online port scanner and found one open port: TCP7676. This is on a Zyxel PK5001z Modem/Router combo through Centurylink. I'd feel safer if I could close it but I didn't see an obvious way to do this while perusing the modem setup gui. Hopefully it's in there somewhere and I just haven't stumbled upon it yet. Or... maybe it's a setting in the Win10 Firewall? I don't have a 3rd party firewall.

I generally don't mess with this stuff and probably shouldn't have run the scanner. ;-) However, now that I have, and an open port was found, it's going to bug be till it's closed. Any ideas?

Thank you.

Posted: Fri Nov 17, 2017 7:23 am
by YeOldeStonecat
Zyxels have that port reserved for WAN management by the ISP.

Posted: Fri Nov 17, 2017 4:29 pm
by chiPersei
YeOldeStonecat wrote:Zyxels have that port reserved for WAN management by the ISP.
Thank you Stonecat! I feel much better. Now back to my oblivious sense of security. ;-)

Posted: Wed Dec 13, 2017 2:57 am
by josenguyen
YeOldeStonecat wrote:Zyxels have that port reserved for WAN management by the ISP.
Thanks!

Re: How to close a port

Posted: Sat May 24, 2025 3:55 am
by Thesplattzone
So I need to do the same with my ports, said it was open and was a magnet for bad things. So I saw you said ISP, I'm a newbie now so is that were you can let it on and off with the days of the week?