I cannot ping some of the client computers through OpenVPN

[oblieanold]

I can successfully establish OpenVPN connection, but I cannot ping some of the client computers especialy windows server 2012 PCs. all client computers' gateway are pointing to the PFsense Firewall.

Can someone help me?

Thanks in advance.

[Derelict]

Check windows firewall on the hosts you can't ping.

[oblieanold]

I have disabled all firewall on all client machines, but I still cant ping the client machines.

[Derelict]

Check the default gateway on the client machines you cannot ping.

If the routing is in place for some it should be in place for all so it will be something else. Check all the things.

This is for port forwarding but many apply to your situation as well:

https://doc.pfsense.org/index.php/Port_Forward_Troubleshooting

[oblieanold]

Thank you for your help, but the problem still exists. I have also realized that when i restart those computers that I cannot ping, the ping starts to go though for about 30 seconds and then drops again.

What could be the problem? Somebody please help.

[Derelict]

Nowhere near enough information. Sounds like an it could be an IP address conflict though. Just a guess. We have been given very little information.

You'll probably have to packet capture to see what's going on.

[oblieanold]

I finally found the problem. My ANTI VIRUS was blocking connection, so i had to edit the AV rules.Thanks to you all!!!!