All of my ports are closed (not stealthed)

spike315 · 11-10-2009, 07:35 PM

I recently moved into a condo for the winter and have been having some trouble getting everything up and running properly. I can connect to the internet fine, but all of my ports (except for a select few) are closed.

I have no antivirus or antispyware software installed and I have disabled windows firewall. Other computers on my network have the same problem, so I know it's not my computer.

Also, this problem persists even when I hardwire directly through the modem, so it's not a router problem.

I have verizon high speed (I know, it's terrible), do they have a history of blocking ports?

I ran a port scan on www.grc.com and it says, out of my first 1056 ports, only port 22 is open.

What gives?

**johnwill** · 11-11-2009, 08:10 AM

What is the exact make/model of the "modem"? My guess is you have a modem/router, and that's where the ports are blocked.

spike315 · 11-12-2009, 10:40 AM

I solved my own problem, thanks though.

It turns out that our internet goes through a third party then to our building, and the third party blocks ports for security reasons.

**johnwill** · 11-13-2009, 08:46 AM

Thanks for the feedback.

11-10-2009, 07:35 PM	#1 (permalink)
spike315 Registered User Join Date: Nov 2009 Posts: 2 OS: winxp	All of my ports are closed (not stealthed) I recently moved into a condo for the winter and have been having some trouble getting everything up and running properly. I can connect to the internet fine, but all of my ports (except for a select few) are closed. I have no antivirus or antispyware software installed and I have disabled windows firewall. Other computers on my network have the same problem, so I know it's not my computer. Also, this problem persists even when I hardwire directly through the modem, so it's not a router problem. I have verizon high speed (I know, it's terrible), do they have a history of blocking ports? I ran a port scan on www.grc.com and it says, out of my first 1056 ports, only port 22 is open. What gives?

11-11-2009, 08:10 AM	#2 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 41,623 OS: Windows 7, XP-Pro, Vista, Linux Blog Entries: 1	Re: All of my ports are closed (not stealthed) What is the exact make/model of the "modem"? My guess is you have a modem/router, and that's where the ports are blocked. __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience

11-12-2009, 10:40 AM	#3 (permalink)
spike315 Registered User Join Date: Nov 2009 Posts: 2 OS: winxp	Re: All of my ports are closed (not stealthed) I solved my own problem, thanks though. It turns out that our internet goes through a third party then to our building, and the third party blocks ports for security reasons.

11-13-2009, 08:46 AM	#4 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 41,623 OS: Windows 7, XP-Pro, Vista, Linux Blog Entries: 1	Re: All of my ports are closed (not stealthed) Thanks for the feedback. __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience