same here - seems the macOS VPN Remote Endpoint Security clients were at least a little bit abbandoned
hence the only chance for me now is iPad Pro, Capsule on iOS12 and that's all. None of my "Mojave" -based Mac's cant connect either by SNX (NetExtender) via MAB Portal (network mode!) or via ESClient (latest E80.7x/8x).
I wish CP would improve their "native" macOS VPN Remote Client soon ... otherwise we all start migrating to Win10 1709 build I doubt most of us using it anyway as you know we're "linux" focused community ppl however, PC's are as must as SmartDashboard R80.20 still does not work on macOS "LOL:P"
Cheers
jerry
Jerry