No connectivity using DHCP

maho · 10-31-2005, 12:26 PM

I have a Laptop (Dell Inspiron 4150) with a wireless B/G minipci card (Intel Pro 2200BG).

When running DHCP on my home wireless network I always get "Limited or no connectivity" and no connection. If I set it up to static IP I have a good 54mbps connection immidiatly.

I have another laptop which has no problem getting a IP adress over DHCP, so my router, firewall, switch setup should be ok. There are plenty of adresses left in the DHCP pool

I have installed the Microsoft Fix KB884020.
I have run the winsockxpfic
I have checked for spyway, TSR programs using AdAware
I have tried the ipconfig /release; ipconfig /renew

Still no connection using DHCP. I just get a 169.244.XXX.XXX adress, which I guess windows defaults to if no DHCP is availible.

Please help me !!!
THX

**johnwill** · 10-31-2005, 02:38 PM

Try this:

For this command, Start, Run, CMD to open a command prompt.

Reset TCP/IP stack to installation defaults. netsh int ip reset [log_file_name]

Note: the log_file_name needs to be specified, e.g. netsh int ip reset reset.log

maho · 11-01-2005, 10:28 AM

So today I tried the following:

Removed a lot of networking software from the PC (Zonealarm, Hamachi, etc)
Ran the software patches and fixes again: No connection
Turned off the Windows XP firewall: No connection
Reloaded the Router Firmware: No connection
netsh int ip reset [log_file_name] as suggested: No connection
Disabled WPA encryption: DHCP CONNECTION !!!

Enabled WPA encryption again with another key: DHCP CONNECTION !!!

Enabled MAC Adress Filterring: DHCP CONNECTION !!!

So now everything seams to be working. I have transfered more than 6 GB over the connection and it is still going strong.

I belive it was a mix of things causing this problem, but now I don't really care

**johnwill** · 11-01-2005, 04:47 PM

I guess it's solved.

I suspect the WPA keys did not match, which would cause the indications you mention.

maho · 11-02-2005, 05:47 AM

Still if the WPA keys didn't match I shouldn't be able to get a connection using static IP ?

(If so that would be a major security breach !)

HootysHaven · 11-02-2005, 10:06 AM

Just a general questions about the Static IP you set.

You would of had to set a static with the MAC address on the router as well which will bypass the WEP encryption since your computer is already registered with the router using its MAC address.

Did you have to set the static on router or not?

~Ziggy~

10-31-2005, 12:26 PM	#1 (permalink)
maho Registered User Join Date: Oct 2005 Posts: 3 OS: WinXP	No connectivity using DHCP I have a Laptop (Dell Inspiron 4150) with a wireless B/G minipci card (Intel Pro 2200BG). When running DHCP on my home wireless network I always get "Limited or no connectivity" and no connection. If I set it up to static IP I have a good 54mbps connection immidiatly. I have another laptop which has no problem getting a IP adress over DHCP, so my router, firewall, switch setup should be ok. There are plenty of adresses left in the DHCP pool I have installed the Microsoft Fix KB884020. I have run the winsockxpfic I have checked for spyway, TSR programs using AdAware I have tried the ipconfig /release; ipconfig /renew Still no connection using DHCP. I just get a 169.244.XXX.XXX adress, which I guess windows defaults to if no DHCP is availible. Please help me !!! THX

10-31-2005, 02:38 PM	#2 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 41,940 OS: Windows 7, XP-Pro, Vista, Linux Blog Entries: 1	Try this: For this command, Start, Run, CMD to open a command prompt. Reset TCP/IP stack to installation defaults. netsh int ip reset [log_file_name] Note: the log_file_name needs to be specified, e.g. netsh int ip reset reset.log __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience

11-01-2005, 10:28 AM	#3 (permalink)
maho Registered User Join Date: Oct 2005 Posts: 3 OS: WinXP	Fixed it, but don't know why ??? So today I tried the following: Removed a lot of networking software from the PC (Zonealarm, Hamachi, etc) Ran the software patches and fixes again: No connection Turned off the Windows XP firewall: No connection Reloaded the Router Firmware: No connection netsh int ip reset [log_file_name] as suggested: No connection Disabled WPA encryption: DHCP CONNECTION !!! Enabled WPA encryption again with another key: DHCP CONNECTION !!! Enabled MAC Adress Filterring: DHCP CONNECTION !!! So now everything seams to be working. I have transfered more than 6 GB over the connection and it is still going strong. I belive it was a mix of things causing this problem, but now I don't really care

11-01-2005, 04:47 PM	#4 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 41,940 OS: Windows 7, XP-Pro, Vista, Linux Blog Entries: 1	I guess it's solved. I suspect the WPA keys did not match, which would cause the indications you mention. __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience

11-02-2005, 05:47 AM	#5 (permalink)
maho Registered User Join Date: Oct 2005 Posts: 3 OS: WinXP	Still if the WPA keys didn't match I shouldn't be able to get a connection using static IP ? (If so that would be a major security breach !)

11-02-2005, 10:06 AM	#6 (permalink)
HootysHaven Registered User Join Date: Oct 2005 Location: SC Posts: 33 OS: XP/XP Pro/Win2000	Just a general questions about the Static IP you set. You would of had to set a static with the MAC address on the router as well which will bypass the WEP encryption since your computer is already registered with the router using its MAC address. Did you have to set the static on router or not? ~Ziggy~