LAN available only with assigned IP address

[ChrisRChamberlain]

Hi all

Have a client who has suffered a couple of power surges resulting in a loss of connectivity to a LAN through a D-Link wireless network card to a Netgear wireless router. Other PCs on the LAN with a similar setup are not affected.

If Windows assigns an IP address there is no LAN or Internet connection.

If I assign say 192.168.0.30 as the IP address, there is a LAN connection but no Internet connection.

Have run the utility WinsockXPFix.exe without success.

Ideas please?

TIA

FAQ184-2483​

Chris
PDFcommander.com
motrac.co.uk

 

[626F62]

if it was me i would think about removing the card and re-installing it...

 

[goombawaho]

Yeah - definitely that specific card or that PC is having a problem if other PCs on the LAN are fine.

I'd just try a different KNOWN good card. If no success after that - I'd try the cable and change the port it's plugging into on the router/switch.

 

[Diancecht]

I'd first of all check that "similar setup" actually means "same setup" for DHCP, gateway and proxy settings.

Cheers,
Dian

 

[ChrisRChamberlain]

Thanks to all for your replies.

"similar setup" actually means "same setup"

That should have been "same setup"


It would not be the first wireless card that I've know fail in similar circumstances, if indeed that is the problem.

Will replace the network card and report back from there.

FAQ184-2483​

Chris
PDFcommander.com
motrac.co.uk

 

[vacunita]

If Windows assigns an IP address there is no LAN or Internet connection.

Windows should not be assigning anything.

It should be the wireless router that assigns addresses.

With that said, what IP info if any does the PC get when set to DHCP?

Does it match the other PC's?

It is completely possible the card got fried, and is just not able to acquire addresses from DHCP any more.

Its also possible though unlikely, the router has a limited amount of addresses to hand out, and can't offer a new one to the PC now.




----------------------------------
Phil AKA Vacunita
----------------------------------
Ignorance is not necessarily Bliss, case in point:
Unknown has caused an Unknown Error on Unknown and must be shutdown to prevent damage to Unknown.

 

[ChrisRChamberlain]

If Windows assigns an IP address there is no LAN or Internet connection.

By that I should have said 'Obtain an IP address automatically' is selected in the General tab of the Internet Protocol (TCP/IP) Properties dialog of the ethernet device.

If I assign say 192.168.0.30 as the IP address...

Using the 'Use the following IP address' option in the same dialog is what I meant.

With that said, what IP info if any does the PC get when set to DHCP?

Not known, but will test if card swapping fails.

Its also possible though unlikely, the router has a limited amount of addresses to hand out, and can't offer a new one to the PC now.

There are only 4 pcs/printers on the LAN.

FAQ184-2483​

Chris
PDFcommander.com
motrac.co.uk

 

[goombawaho]

$5 bet on card is fried. Anything electrical surge/brown out = big problems throughout the connected devices.

 

[edfair]

Have run across devices that would not request an IP address via DHCP.

In command prompt ipconfig to see what is set up. With DHCP should be the 192.168.x.x from the router.
ipconfig /release should set it back to 0.0.0.0 and ipconfig /renew should get the 192.x.x.x back again.

To answer the pool question you could shut down one of the other machines and see if that changes the results of IP address on the problem machine.

Ed Fair
Give the wrong symptoms, get the wrong solutions.

 

[ChrisRChamberlain]

Finally been able to swap wireless cards on customer's pc and happily the diagnosis of card failure was correct.

Thanks to all who contributed to the thread.

FAQ184-2483​

Chris
PDFcommander.com
motrac.co.uk

 

[goombawaho]

Thanks for posting back. I'm glad I guessed correctly.