Port 80 Intermittent Open And Close

May 3, 2011

I've been trying to set up a customers security camera's for remote viewing. He has a HP running Vista, a netgear grt614 vs10 router, and a static IP address through Verizon. My problem is this. I set up port forwarding for port 80. All seems to work well sometimes and I can connect to his DVR no problem. Then other times I can't connect at all. I'll run a port checker and it will tell me port 80 is closed. Is it possible that Verizon will off and on block inbound port 80? I seem to only be able to connect during buisness hours. Is it possible that his PC needs to be on for the port to be open. The DVR is the server which is always on and the router is always on. I don't know why the computer would have to be on.

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Here is my router. [URL]

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So finally that my e4200 is capable of disabling wps i run in to another question.
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LOG------------------------------
 Tue, 2010-02-09 10:02:16 - AddPortMapping: external NULL:3658 to 10.1.1.253:3658 protocol UDP for: 10.1.1.253:3658 to 3658 (UDP) with timeout:0Tue, 2010-02-09 10:02:16 - no permission rule matched : accept by default (n_perms=0)Tue, 2010-02-09 10:02:16 - redirecting port 3658 to 10.1.1.253:3658 protocol UDP for: 10.1.1.253:3658 to 3658 (UDP)Tue, 2010-02-09 10:02:16 - creating pass rule to 10.1.1.253:3658 protocol UDP for: 10.1.1.253:3658 to 3658 (UDP)
 .....
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Processor: AMD A6-3400M APU with Radeon(tm) HD Graphics, AMD64 Family 18 Model 1 Stepping 0
Processor Count: 4
RAM: 3560 Mb
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-Both?
-Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:Usersack>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : FellowShip[code]....

Who is your Internet Service Provider (ISP)?

-Comcast

What type of Broadband connection are you using?

-Cable

What is the exact Make and Model of your Modem, Router or Modem/Router Combo?

-Router is WNR2000v3, Modem is SMCD3GNV (One I'm renting from Comcast)

What is the Name of the Anti-Virus, Security or Firewall Software installed from the problematic computer?

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