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Open the services management control panel by entering in the start/run box &nbsp;services.msc &nbsp;look for the Cisco Systems Service and verify it is set to automatic and started. &nbsp;See if that helps to resolve.<br />

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Open the services management control panel by entering in the start/run box  services.msc  look for the Cisco Systems Service and verify it is set to automatic and started.  See if that helps to resolve.


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<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Finally, I got it.<br />
Start | control panel | security center | windows firewall | exceptions | add port, Identify this as UDP, enter port 62515, select UPD when prompted. Close or exit out. Close windows and start VPN client. Bingo.<br />
<br />
<br />
Thank You <br />
&nbsp;<br />

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Thanks yeru777,<br />
--Rob
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<br />
I'm using Win XP Srvc Pk 2.<br />
<br />
I installed VPN client 4.6.02.0011. When I try to open it I get the following error:<br />
<br />
Error 51 IPC Socket &nbsp;allocation failed !. &nbsp;error -4h<br />
<br />
HELP !!!!!!!!!!!!!!. I already Uninstalled and installed agian , but nothing<br />
<br />
<br />
PLease help <br />
&nbsp;
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I'm using Win XP Srvc Pk 2.

I installed VPN client 4.6.02.0011. When I try to open it I get the following error:

Error 51 IPC Socket  allocation failed !.  error -4h

HELP !!!!!!!!!!!!!!. I already Uninstalled and installed agian , but nothing


PLease help 
 

VPN error 51 doesnt let connect

A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or travelling users access to a central organizational network securely. VPNs encapsulate data transfers using secure cryptographic methods and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.