limited or no connectivity

[michaelt23]

After installing service pack 2 I get this "limited or no connectivity" message on my lan. I have found several possable fixes for this on the web, but of them work. I am Running Windows XP Home.

 

[bcastner]

The only "valid" repair efforts are to update tcpip.sys with a Hotfix, and make a registry modification if L2TP VPN client protocals are involved:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\IPSec]
"AssumeUDPEncapsulationContextOnSendRule"=dword:00000002

See:

http://www.pchell.com/support/limitedconnectivity.shtml

Everything else I have read involves using Group Policy or Network Connections to disable the message.

You should consider seriously the possibility that your physical plant - NIC, NIC drivers, cabling and/or router connection is marginal.

 

[michaelt23]

I have tried that and the registry would not except the string. I am useing a newer version of registry editor.

 

[bcastner]

I am useing a newer version of registry editor."

And that would be what?

In any case, open a notepad session and copy/paste the below as fix_connect.reg :

*** start copy/paste below this line
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\IPSec]
"AssumeUDPEncapsulationContextOnSendRule"=dword:00000002

****** end copy/paste above this line (note the one blank line)

Double click fix_connect.reg and agree to the registry addition. Reboot and test.

 

[michaelt23]

Windows Registry Editor Version 5.1

 

[bcastner]

Should make no difference as long as the total syntax is correct.

Try the copy/paste.

But the registry edit only affects L2TP VPN matters.