HAve two Laptops running Vista, both with NIS 2011, they lose internet connection and can't recconnect, they are still attached to the network but the internet just ceases to work.
http://img219.imageshack.us/i/nortonblockinginternet.jpg/
Have to Restart to get internet back, HAve a trusty old XP desktop that has NIS doesnt havethe same problems
Try disabling the Symantec add-ons in the browser to see if that makes any difference. Also reset your router if you have one. Have you tried resetting your network adapter as suggested in your screenshot?
"Try disabling the Symantec add-ons in the browser to see if that makes any difference. Also reset your router if you have one."
-tried that, the computer itself has to reset to get internet running(reseting the network adapter doesnt have the same effect)
It appears your DNS server is located on your router. Your last image posting shows DNS server at 192.168.0.1.
After you reboot, go into CMD prompt and enter the following command: IPCONFIG /all. Note a space must exist between the "G" and the "/". Is the IP address for the DNS server 192.168.0.1?
If the IP address is 192.168.0.1, next in the same command promp window enter: PING 192.168.0.1. You should receive four replies in fairly rapid succession.
Report back with your findings.
Your PingConnections are Fine....
are you facing problems for all websites or only some specific websites....
From the images you posted first, it looks like this is a wired connection ( a cable from the laptop to the router / modem ); is this the case? If so, then try swapping cables with the XP desktop and see if the problem follows the cable or the laptop. If it follows the cable, then try leaving the cables attached to the desktop / laptops and changing the ports each cable is attached to at the router / modem. These tests will help determine / eliminate bad cable(s) or socket(s). Let us know the results; thanks.
Do use a fixed IP provided address or do you get your IP address dynamically via DHCP.
After you enter the ipconfig /all command, what is the address of your DHCP server?
Heres my ipconfig /all (hope its safe to post pics of this)
http://img541.imageshack.us/i/nortonblockingcmdipconf.jpg/
"are you facing problems for all websites or only some specific websites...."
browser wont connect to my router, websites, or other computers on network
"try swapping cables"
Will try that and report back and yes this laptop is wired the othe risnt
""Do use a fixed IP"
yes, each pc,laptop,xbox etc has its own manually enterd ip address
BTW - Never show your NIC MAC addresses online!
You sure you have your broadband router configured correctly?
Your lease obtain/expire times as shown in your IPCONFIG screen shot is 3 days? That is a very long time. Each router manufacturer default lease times are different but 1 hour is the usual default value. Below is my lease times after an IPCONFIG /ALL command was issued.
Lease Obtained. . . . . . . . . . : Tuesday, March 29, 2011 2:43:58 PM
Lease Expires . . . . . . . . . . : Tuesday, March 29, 2011 3:43:58 PM
I don't see anything strange other that your using IPv6 and IPv4.
I assume you have one notebook connected to the ethernet router and that notebook IP address is 192.168.0.11?
I also saw some tunnel entries on your IPCONFIG screen shot that you have appeared to removed.
Did you create a VPN? If so check this out: http://community.norton.com/t5/Norton-Internet-Security-Norton/NIS-2011-prevents-Win-XP-from-connecting-to-VPN-server/m-p/317416#M132896
I cant see how to change the lease times on the router and Ididnt know that I was using IPv6, I unchecked IPv6 in the properties for the network adapter and i'm still getting the same problems.
HAve two Laptops running Vista, both with NIS 2011, they lose internet connection and can't recconnect, they are still attached to the network but the internet just ceases to work.
Have to Restart to get internet back, HAve a trusty old XP desktop that has NIS doesnt havethe same problems
Let's start all over again.
From your above original posting shown above you have 3 PCs; two laptops and a desktop. I assume all three are connecting through the same modem/router - correct?
Have the laptops always had connection problems, even before NIS was installed on them?
Next, it's a given that that desktop has a wired connection to the router. How are the laptops connected to the router? Through a wireless connection?
Assume the laptops are connect to the router via a wireless connection. This means your router is a hybrd that has ethernet ports on the back for wired connections plus an antenna to support wireless connections. Does this describe your router?
Is your router wireless connection options activated and configured properly?
Answer the above questions and we will proceed based on your answers.
Have the laptops always had connection problems, even before NIS was installed on them?
the laptops (1 wired,1 wireless) never had connection problems before
Next, it's a given that that desktop has a wired connection to the router. How are the laptops connected to the router? Through a wireless connection?
1 wired,1 wireless and yes the desktop is wired too.
Assume the laptops are connect to the router via a wireless connection. This means your router is a hybrid that has Ethernet ports on the back for wired connections plus an antenna to support wireless connections. Does this describe your router?
Router is a hybrid but the wireless aspect isn't used(turned off in the router settings), instead I have a wireless access point running elsewhere,which is used for one of the laptops and the other is wired.
Is your router wireless connection options activated and configured properly?
I suspect the configuration is correct as it never drops connection for other devices
So I have two laptops running vista, 1 is wired and the other is wireless via the WAP, then I have a desktop running XP which is wired.
Router is a hybrid but the wireless aspect isn't used(turned off in the router settings), instead I have a wireless access point running elsewhere,which is used for one of the laptops and the other is wired.
That WAP has to be connecting to something? You have a USB modem connected to that laptop? If so that is an entirely separate network. Let's ignore this for the time being.
Open up Norton Internet Security on your wired laptop and then select Network Security Map. Does it show the wired laptop? Does it show the desktop?
Leave the wired laptop turned on.
Next on the desktop, do the same thing. What does Network Security Map show? Both the desktop and the wired laptop?
Finally, does your router have both a DNS and DHCP server in it? When you do an IPCONFIG /all for both the desktop and the wired desktop. the IP address for your DNS server and DHCP server would be the same as the the Gateway IP address. That means DNS and DHCP server are on your router.
That WAP has to be connecting to something?
yes its connection via ethernet to the rest of the network
You have a USB modem connected to that laptop? If so that is an entirely separate network
No,It connects via internal wireless pci card, and its on the same network as ther others
What does Network Security Map show? Both the desktop and the wired laptop?
Shows on both wired laptop and wired desktop, with the rest of my stuff
Finally, does your router have both a DNS and DHCP server in it?
Yes. I can see a dhcp service which is checked up, there is a dynamic dns service aswell which isnt checked up, can'y see a specific DNS section anywhere (router is a Sky branded router but is based on a ntgear DG814)
Here's what I suggest.
It's extermely difficult to diagnose network issues via 3 - 4 question forum responses. Contact Norton tech support via live chat and see if they can nail down the network connectivity issues with the laptops. Refer them to this forum thread for background info. Might save some time.
If they can't resolve it, then stop on back and we'll pick up where we left off.
If tech support solves it for you, please post here what the solution was for future reference.
StanleyTylon5M wrote:Router is a hybrid but the wireless aspect isn't used(turned off in the router settings), instead I have a wireless access point running elsewhere,which is used for one of the laptops and the other is wired.
I am a little confused here. Depending on how you have this set up, I am wondering if you may have a double NAT situation.
http://practicallynetworked.com/networking/fixing_double_nat.htm
My theory on what is going on is that he has NIS 2011 installed on the desktop and the two laptops. He is running all three PCs independently i.e.. not as a network but they are all connected to the same router. I suspect the desktop NIS installation is seeing the laptops and is blocking them from connecting the Internet; probably because it doesn't trust them? Note that OP stated he can connect to the Internet on laptops prior to the NIS installation on them so I don't think the problem is his router.
I think he has to setup his Network Security on each PC to exclude all the other PCs that connect through the router? This is why I suggested Symantec tech support. They can diagnosis this remotely.