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Cisco VPN client on VISTA

edithroman
edithroman asked
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Last Modified: 2008-04-24
Error422: Secure VPN Connection terminated locally by this Client.
           Reason 422: Lost contact with the security gateway. Check your network connection
           Connection terminated.
Please help me ASAP
my user connects thru a westell DSL modem - on a vista machine, windows firewall is disabled.  She connects to our corp VPN but after 10-15 secs she gets booted out with the above error.  What am I missing?  I told the user to call her ISP and see if there is any problems on their end
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Commented:
I believe THE client must be a minimum of V5.0 for it to work on Vista....

Is she using a router? Her router might need a firmware upgrade.....

Try dropping the MTU down to 1300......
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Commented:
Vista: TCP window scaling not compatible with some network hardware.
http://8help.osu.edu/3253.html

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Commented:
cisco VPN 5.0 is installed - she is using a westell modem/wireless router for her DSL... im having her call her ISP and see if its on their end - what else can I can in the meantime to rule out any problems with her laptop config?
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This one is on us!
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Commented:
Try out the "Internet Connectivity Tool" to see what it says...

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Commented:
I have another remote user that has vista and vista compatible cisco VPN client 5.0 and he can connect fine and has been for weeks - no interuption of service -

Author

Commented:
another thing is she can browse the web just fine - she can connect to the vpn successfully but only stays on it for 10-15 secs before getting kicked off with this error

Error422: Secure VPN Connection terminated locally by this Client.
Reason 422: Lost contact with the security gateway. Check your network connection
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Commented:
Whats the MTU set at in the client?
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What model of westell DSL modem is it, do you know?

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Commented:
i dont know but she uses BellSouth DSL so whatever westell modem/wireless router combo they use for new clients
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I would see if she could get that info for us.......Might be able to find some info on it online....

And no Router behind it, right?

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Commented:
nope - these days new internet services come with a modem/wireless router combo that lets you hardwire 4 PCs as well - no need for separate router connected to the modem anymore
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Commented:
Mine didnt.....    :)
That was because I didnt want ATT's HomeZone crap....That was the only reason I asked...

but, that does mean a router is in place, and I would definately check to see if that one is Vista ready, or has a FW upgrade to make it ready..... It is a common problem with Vista's use of TCP window scaling....

Author

Commented:
it was the FW setting on the ISPs side - shes good now, the ISp made an adjustment to have her networking hardware vista ready
thanks
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Sweet...Glad you got it....

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