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BarberDSFlag for United Kingdom of Great Britain and Northern Ireland

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Vista laptop cannot see network

I have a dell laptop which runs vista business, it was working ok on our network until 3-4 weeks ago when it started to lose the default internet gateway everytime you reboot or come out of standby,
Now the laptop cannot see the rest of the network (including the server) so I can't map any of our network drives,
The laptop connects to the network and you can access the internet, the server email exchange (you can downlaod emails) and also connects to printers ok,
We have fixed ip settings in the office, have played around with these and tried automatic settings no good, have also disabled the wireless and just connected using a wired connection but still no good,
I have no error messages and the laptop is running fine no issues at all, other than it has vista on it, the rest of the office runs xp and the server has 2003 std o/s,
Has they been any updates to vista which would effect the laptop in this way maybe?
I have run a ipconfig/all and attached info, one thing I did notice was a weird ip address for the wireless, don't know where this has come from should be the same as the other one but I still have the problem even when wireless is disabled,
I don't really know what to try next, any help on this matter would be very much appreciated,
Cheers
ipconfig.pdf
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Jackie Man
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According to the advice from JohnWill, the fix is as follows:-

"For Vista, Start, Programs\Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.

Reset WINSOCK entries to installation defaults: netsh winsock reset catalog

Reset TCP/IP stack to installation defaults. netsh int ip reset reset.log

Reboot the machine."

Source: http://forums.techguy.org/networking/597129-solved-netbios-disabled-unable-clear.html
chech the antivirus
Check that your firewall (i.e. Norton, AVG, McAfee, ESET, etc) is not blocking it. Switch off your firewall temporarily, and see if you have any luck.

Good luck !
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ASKER

Thanks for your quick responses,

I have tried turning the antivirus & firewall off but still have the same problem, I booted up in safe mode with networking but still can't see the server,

I have followed the advice from johnwill, this appears to have fixed the internet gateway problem which is good, thanks,

But I still can not map any network drives, the only other machine which I can see is another vista machine and but none of the xp machines or the server, I can only see the vista machines from the server,
Try to disable ipv6 in TCP/IP setting of NIC.
I have tried disabling the ipv6 in tcp/ip settings but I still having the same problem,

The guy who uses the laptop has also just informed me that windows had just installed some updates when he lost the connection to the server, I think it was after a reboot, Anybody know of any issues with the updates?
Run the ipconfig command again

ipconfig /all >results.txt

Post the content inside results.txt back and we can see what is the problem.
also run the command below

nbtstat -n

and see whether you have enabled NetBIOS over TCP/IP for your Vista machine
I have run the commands and attached the results,
ip-config-all.txt
nbstat.txt
ASKER CERTIFIED SOLUTION
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Jackie Man
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Sorry, typo in my previous post, the entry in registry shall read:-
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NetBt\P­arameters
The information below shall also be useful for you.
"The Peer-Peer type is the problem... .Set the NodeType to 0, not 2."
Source: http://www.techsupportforum.com/networking-forum/networking-support/306940-cannot-access-pc-vista-network.html
That's Brilliant!

Fix worked a treat, it was indeed set for peer to peer, do you know what would have caused this to happen, the laptop has been running fine for over 6 months, just in case there is something we should avoid in the future,

Many thanks Jakieman
absolutely brilliant!
You are welcome.

Glad to know you have fixed the problem.

It is difficult to know the exact cause of your problem. My wild guess is that someone, maybe the network administrator of your company has made the NodeType to be peer to peer as there is a WINS server in your server which manages the NetBIOS names for all computers in your network. With a WINS server, peer to peer is no problem. However, maybe the WINS server has died or got sick 3-4 weeks ago and your Vista machine cannot see all machine in local network.

It is difficult to prevent bad things from happenings, but it is better for you to remember all basic network troubleshooting commands, such as all you have learnt in the answers for this question.
Yeah using the experts exchange is really useful for me as I'm not trained in IT and I'm lacking in some of the basic knowledge, I managed to setup a printer when I first started my job and my boss now seems to think I can fix any IT problems, My main job is structural Technician Engineer, I spent most of my time detailing and drawing 3d models in the construction industry, It's all good though I enjoy solving problems whatever they are,

Again Many thanks for your assistance