7 Replies Latest reply: Nov 19, 2007 6:16 AM by maverickws
fanocle Level 1 Level 1 (0 points)
I am not an expert in this area but along with a bunch of other people we are suffering since the Cisco VPN drops us at regular intervals. Apparently there are some compatibility issues and since the VPN uses PPTP, the Cisco VPN interface is not an option (since it uses IPSec). Does anyone know how I could finally put a stop to all of tedious interruptions where I have to reconnect to the VPN?

MacBook, Mac OS X (10.4.10)
  • Gerard Dirks Level 1 Level 1 (30 points)

    I have exactly the same problems. The connections is broken at different intervals

    Ferther I recognised that not all the protokolls are supported correctly. When I tried to use ARD 3.1 I am able to see the clienst. In the List is shown wchich Program is active at tat moment, but I am not able to share the the screen for remote support.

    Whit all other hardware VPN Servers the Apple PPTP Client works normal so I suggest their must be an incompatibility

  • varjak paw Level 10 Level 10 (169,810 points)
    We have the Cisco VPN client on several dozen MacBooks and no such problems have been reported to me. Make sure you're using the latest Intel release of the Cisco VPN.
  • mikev63 Level 1 Level 1 (0 points)
    I use it also without any issues.
  • bluelaser Level 1 Level 1 (15 points)
    I have the same connectivity problems with Cisco VPN client. Very frequent connection drops. I use the latest client offered by our university (v 4.9.01).

    I have to use a special VPN plugin through Firefox, after using Rosetta on Firefox. Then minimize the connection window while I work on the network. Its stable that way.
  • Wesley Snyder Level 1 Level 1 (0 points)
    One our our IT guys set up an ethernet printer on my MacBook, and ever since, the Cisco VPN has been unreliable. Recently, however, it has failed utterly. All network printers are now gone. The error message from the Cisco VPN client is

    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.

    I obviously have network connection, as I am typing this message through a brower on that computer. I need to emphasize that it used to work, and we havent changed anything (that I know of).

    Has anyone encountered this variation?
  • fanocle Level 1 Level 1 (0 points)
    Do you mind explaining this in simpler terms? Many thanks!
  • maverickws Level 1 Level 1 (0 points)
    Hi, getting this same problem, error 51.

    Tested two network interfaces, airport and ethernet, installed various versions, restarted services, stopped the personal web sharing as it was the only sharing service i had running, and nothing solved it. Anyone knows how to get cisco vpn client to work? ty