Cannot Access Internet After Connecting to VPN (Cisco, Sonicwall, Etc)

Sometimes when in the IT Support field you will almost always have to deal with remote users. These users typically require VPN access to connect to the network to access their data and company data. Whether they are using Microsoft's VPN, Sonicwall GlobalVPN Client, or Cisco VPN, you may all run into this issue.

If a user complains that once they are connected successfully to the VPN, but is unable to go out into the internet, you can try these steps. Sometimes there are things like "Split Tunnel" which can be turned on, but in some cases, even if this is on, it will not resolve the issue. When this happens, you can create a batch script and have the user run these commands to resolve the issue. It is sort of a workaround, but can be used for crutch situations.

1. Open Command Prompt by Clicking Start > Run > Type CMD > Hit Enter.

2. Type these following commands:

route delete 0.0.0.0
route add 0.0.0.0 mask 0.0.0.0 192.168.1.1

*Important: CHANGE 192.168.1.1 to your local GATEWAY address (router/firewall address)*

3. Done

You can create a batch script and the user launch it after connecting to VPN, as once they disconnect and reconnect they will lose the settings. This can be done by opening up notepad, inputing the two commands, and then saving it as a.BAT file. Once you save this file, the user can launch this after VPN connection.

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