Unable to access local network when Cisco VPN client is connected

I'm a developer and don't have much networking expertise, so bear with me.

I'm using the Cisco VPN Client 5.0.02.0090 to connect to my work's VPN that way I can RDP into my work computer. Once connected, I can't ping anything on the local network once connected to the VPN thus I am unable to access my work's network. This used to work about two weeks ago but abruptly stopped working today.

However, I have the Cisco VPN Client installed on my laptop and I am able to ping and RDP into my work computer from there. Both my desktop and laptop computers are connected to the same router at home.

I have tried the following so far:

  • Rebooted my computer
  • Reinstalled VPN client
  • Updated NIC drivers
  • Disabled firewall
  • Opened up ports 500, 4500, and 10000

Any help would be much appreciated. Thanks!


This is completely normal behaviour for the Cisco VPN client. In fact, many workplaces absolutally DEMAND this, as their contracts may require that if a computer is on their network, then it must ONLY be on their network (and not multi-homed).

Yes, there are ways around it, but you need to speak to your sysadmin about this.


Did you try disabling the client's built in firewall(not the one of the OS)? That frequently gets in the way.