Just chiming in here to explain what fixed this for me.
So what caused the issue is i didnt close eddie properly and computer had to be reset while un-installing new software.
when i restarted windows, i was getting the standard "network lock activated" response, whereby no internet traffic works at all.
Connecting and re-connecting the VPN, reapplying and removing the network lock, reseting, etc, had no effect. also changing the network lock protocal in preferences from 'windows firewall'to 'automatic', and then re-connecting, disconnecting, resetting, etc, all had no effect.
so i stumbled onto this guide.
First attempt i did the reset DNS settings thing in control panel, and reset ipv4 DNS from a pre-selected server to "automatic".
no effect, same issue.
I then went into windwos firewall settings and restored the defaults, and then re-opened eddie and applied the network lock and its now working again.
i re-checked the DNS settings, and AirVPN has re-applied the correct ipv4 settings that i previously changed to automatic.
I also re-checked my windows firewall settings and they appear to be set correctly, but is there a way i can check this?
Obviously the network lock feature is important to have working correctly, so i would like to be sure that my AirVPN firewall settings have been re-applied correctly?
Is it enough to verify that when network lock is activated, that if all other connections are inactive, then it is working correctly?
To my mind i think that is correct, but would like to get some confirmation from the Guru's on here for peace of mind.
1. didnt shut eddie down properly, network lock malfunctioned and was perma-locked, only able to access internet via eddie
2. followed directions in OP and went into network DNS settings, reset ipv4 DNS to 'automatic'.
3. went into windows firewall settings and restored defaults.
4. reconnected to eddie, re-applied network lock (re-applies DNS and firewall settings), and am back to normal now.