VPN client disconnected due to adapter address changed

VPN client connection problem:
I have a HP laptop and I have installed VPN client 4.6 and also tried with 4.8. I am trying to connect to my work station.

I am able to log-in but it is getting disconnects after 5/6secs. I have tried wired and wireless on both ways.
I have enable the logs and could see the error as below-

"Adapter address changed from 192.168.1.100. Current address(es): 127.0.0.1."

I have tried with many suggestions given in many forums, but still getting the same error -

"Reason:422 Lost contact with network...

FYI-
I have Broadcom 802.11b/g WLAN Network Adapter
tried with:
->VLAN Priority Support - Disabled
->Port forwarding
->DHCP enabled

If somebody can help, then it will be great.
Thanks in advance.