Follow these steps for the Resolve McAfee VPN Issues
Restart:
Device: If you are using a computer or a smartphone, switch off the device and power it back on. Sometimes, it means a temporary fix to a problem.
Router/Modem: If possible turn your router and modem off and back on (leave it off for 30 minutes).
Check Internet Connection:
Without VPN: Make sure that there is a good Web connection before connecting to the VPN. For example, try to open some websites or run speed tests.
McAfee Updates:
Update McAfee: Ensure that the McAfee software and more so the VPN part has the latest version. Updates may include, but are not limited to correcting errors and improving efficiency.