What is most troublesome about this problem is that the behavior has occurred on several of my machines (laptop and otherwise). The pattern usually goes something like this:
1. I install the VPN software on the machine and connect just fine.
2. Network resources are available and life is good.
3. I disconnect and don't connect for a few days.
4. The next time I connect it is successful but, no network services are available and I am unable to ping a networked machine.
As stated earlier, I have tried this on several machines and sometimes I am able to connect several times before the networking resources are barred from me. I use a direct connection to a cable modem (no router). The cisco VPN version is 3.6.3. Does anyone else find this a bit strange?