Here is the thing you need to check.At least this happens to me.When ultravpn is connecting watch the log and when you see the route add - the ultravpn is trying to add routes to the virtual adapter , then right click on the virtual adapter and try repair.
This is how I get the ultravpn gateway.If I do not do that the virtual adapter gets iP and mask but no gateway.And without a gateway it can not work.
So check and make sure that your virtual adapter gets gateway.
in cmd > ipconfig /all
then check the route table
route print
look for ultravpn gateway and meter setting.It should be 1
First of all I would like to thank you very much for your reply. I will appreciate if you can give me some more details about the virtual adapter and gateway and how I can change them. Thanks again