It’s usually a good idea to check your network connection or internet settings when you want to connect to a VPN server and end up with connection errors. Check whether the troubleshooter identified any problems.Select the network adapter you want to diagnose and click Next.Go to Advanced network settings and click on Network troubleshooter.What to do if Avast SecureLine VPN refused your license file? 1. However, you need not be discouraged at all anymore since we came up with a bunch of solutions that under normal circumstances should help you get over this annoying error.Ĭhecking your device network settings or making sure that you have an active subscription and a valid activation code or license file are just a few of the solutions provided below.