iPhone 6+ (iOS 10) Freeze in test in VPN – Speedtest by Ookla Review

Generally, great app. After iOS 10 update, during test with iPhone in VPN mode, the handset will stop, freeze, & auto restart. Test will not complete in VPN mode. Normal test function out of VPN mode. Test always worked regardless VPN mode before iOS 10 update. App & site provides no way to directly report problems.
Review by Max the Mike on Speedtest by Ookla.