I have Anyconnect v4.5.x client on my Macbook with MacOS Mojave and have an intermittent problems with losing DNS functionality when I disconnect from the VPN. After a clean reboot of the laptop, everything works, I connect the AnyConnect client. After disconnecting, any sites currently open in Chrome continue to function fine, but any attempts to resolve new hosts fail, inn Chrome, ping, git, etc. Reseting my DNS cache on the mac does not seem to work. Reboot of the laptop gets everything back to normal. Have any of you guys experienced that? Is there a fix?