HP Photosmart C4780 problem with wireless connection & firewall

Hi
I am trying to connect my HP Photosmart C4780 to my wireless network at home.
Each time I try to configure my printer to my wireless network I keep getting the following HP Network Diagnostics Error Message:
Problems may exist with network functions of the printer. Please try to fix the issue then click Retry or click Next to continue. See details below.
Your printer is unable to communicate with your printer at 192.168.1.69. This may be caused by firewall software. If you are using firewall software verify that UDP port 427 is unblocked for both inbound and outbound traffic.
Your PC cannot communicate with your printer at address 192.168.1.69. Check all cable connections. Check that the printer, PC and router are powered and connected to the network.
MY QUERY - I have AVG 2011 security software installed on my laptop which I presume contains firewalls. But I do not know how to "verify that UDP port 427 is unblocked for both inbound and outbound traffic". How do I do this?
i am not a tech expert so would appreciate as much help as possile with this as right now I cannot use my printer as it keps showing as Offline.
Many thanks
This question was solved.
View Solution.

Go into the AVG menu and simply disable the firewall and retest.
Say thanks by clicking "Kudos" "thumbs up" in the post that helped you.
I am employed by HP

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Wingman2, the first thing I would do is uninstall BTDesktop Help if you have it installed. It can cause more problems than it solves.
I would also suggest that the first thing to try is a factory reset of the homehub by pressing a pin into the recess button on the rear for about 20 seconds.
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http://www.metageek.net/products/inssider/
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http://bt.custhelp.com/app/answers/detail/a_id/14094
After that if you are still having problems you could try setting the home hub to b/g only instead of b/g/n. If one of your devices is not "n" capable it could help.
http://bt.custhelp.com/app/answers/detail/a_id/13768/session/L2F2LzEvdGltZS8xMzg4NzgxNjIyL3NpZC9Vd3p...

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I've been having wireless connection problems ever since I upgraded to Verizon FiOS from Verizon Wireless. Before upgrading to Verizon FiOS in the fall of 2012, my brother's laptop connected just fine with the connection. After upgrading to Verizon FiOS, my brother's laptop could not connect to the internet. It showed the wireless connection signal as Excellent, but I could not access the internet. Either it would be extremely slow or there would be no connection at all. Also, the router would sometimes restart itself randomly, and it was extremely annoying for me since I am hardwired with my desktop.
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Admittedly, that IS a strange case. Unfortunately, it sounds like all possible troubleshooting has been done by the tech support agents. you mentioned that you were dissatisfied with your other service, did it have a similar problem? theres a possibility of dirty fiber or a bad ONT port, but the random rebooting of the router would almost exclusively be a bad router. question: is the router in the same location as before?

Having a problem with wireless connection. On my Windows XP 32 bit system and a 6510 printer, initi

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Hello Everyone,
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Message Edited by Ttech on 06-19-2008 07:38 PM
Message Edited by Ttech on 06-20-2008 03:15 AM

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Message Edited by kenzoviski on 08-19-2009 03:49 AM

Verify that power outlet is working with a lamp or other appliance.
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--Say "Thanks" by clicking the Kudos Star in the post that helped you.
--Please mark the post that solves your problem as "Accepted Solution"

Problems with wireless connection

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Solved!
Go to Solution.

enyap wrote:
I've been having trouble with a laptop connecting wirelessly to my home hub Twice in the past few weeks the connection has dropped out and despite resetting the hub and rebooting the laptop I've had no connection for two days at a time, then it comes back on. The laptop sees the hub on the network connections and even sitting within a metre of the hub, when I try to connect it just sits saying waiting for the network..
Try changing the Wifi Channel a near neighbour may be using the same Channel.
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My hub will not connect to my wi-fi or will not stay connected
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If you post your message in the "Internet and Networking the MacBook Pro (Late 2008 and 2009)" you'll most probably get a better answer.
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This question was solved.
View Solution.

Thanks for your quick reply, PrintDoc! Just a few minutes ago I tried unplugging my router and plugging it back in and "Wallah!" everything connected! It's working perfectly now!

HP Photosmart C4780 problem with wireless connection & firewall

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