VPN Client Error 51 at startup (Win XP)

Unanswered Question
Mar 28th, 2007

Hi,

after some activity on my PC (installed/uninstalled a program), I've a problem with my VPN Client, which does not start anymore, giving the error:

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Error 51: Unable to communicate with the VPN subsystem. Please make sure that you have at least one network interface that is currently active and has an IP address and start this application again.

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I actually have an active network adapter. See the result of ipconfig /all:

Windows IP Configuration

Host Name . . . . . . . . . . . . : ffumi-it

Primary Dns Suffix . . . . . . . : it.oracle.com

Node Type . . . . . . . . . . . . : Peer-Peer

IP Routing Enabled. . . . . . . . : No

WINS Proxy Enabled. . . . . . . . : No

DNS Suffix Search List. . . . . . : it.oracle.com

oracle.com

Ethernet adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected

Description . . . . . . . . . . . : Intel(R) PRO/Wireless 3945ABG Network Connection

Physical Address. . . . . . . . . : 00-18-DE-74-1A-44

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit Ethernet

Physical Address. . . . . . . . . : 00-16-36-83-D0-5E

Dhcp Enabled. . . . . . . . . . . : No

IP Address. . . . . . . . . . . . : ....

Subnet Mask . . . . . . . . . . . : ....

Default Gateway . . . . . . . . . : ....

DNS Servers . . . . . . . . . . . : ....

Stop/restart of the Cisco VPN service didn't solve the problem.

This is the list of adapters that I can see in the MTU setting box:

1394 Connection

dial-up networking

Local Area Connection

Local Area Connection 3

Local Area Connection 4

Wireless Network Connection

all set to MTU option 1300.

Among the adapters listed above, I noticed "Local Area Connection 3", that does not exist on my system network connections.

Does anybody know how to solve this problem?

thanks

Fabio

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Kamal Malhotra Wed, 03/28/2007 - 09:01

Hi Fabio,

Error 51: IPC socket allocation failed with error %1h.

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Description or Action:

The VPN Client failed to create an inter-process communication socket in order to communicate with the service/daemon. VPN connections cannot be established/terminated via the GUI. Refer to Related Information for link to search on Cisco bug ID CSCed05004.

Here are the bug details :

http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCed05004&Submit=Search

HTH,

Please rate if it helps,

Regards,

Kamal

fabio.fumi@orac... Wed, 03/28/2007 - 09:34

Hi,

I can't access the bug details (I'm not entitled to do so).

Could you please cut/paste the relevant part here?

thanks

Fabio

Kamal Malhotra Wed, 03/28/2007 - 11:26

Symptom: With the vpn client 4.0.x installed on a Windows XP (tablet edition), whenever the vpn dialer is opened we get an error "System Error: IPC Socket allocation failed with error ffffffff8h" and then it cannot go out to the DHCP server and get

an ip address

Workaround: There is no known workaround at this time

I'm not sure if it's an exact match.

fabio.fumi@orac... Thu, 03/29/2007 - 01:59

Well... I don't think the case described there is the same as mine.

Any other idea?

thanks

Fabio

fabio.fumi@orac... Fri, 03/30/2007 - 09:30

Does anybody knows at least how to solve this problem?

Unistalling and re-installing the VPN Client wasn't a solution.

thanks

Fabio

kaachary Sat, 03/31/2007 - 03:12

Try these :

1: If its a Dell laptop and if yu have Embassy Wave Suite installed, you have to uninstall it as its not compatible with Cisco client.

2: Make sure in services, Windows Firewall/ICS (Internet Connection Sharing) is turned off.

3: To fix the error with TCP/IP stack, you can use this utility :

http://www.iup.edu/house/resnet/winfix.shtm

Hope this helps.

-Kanishka

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