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1) When connecting to the VPN, there are some error page, but it disappears soon in my MacBook air(Windows does not have these issues). It does not affect accessing the lab server. Not sure whether it should be solved or not.
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2) The following is unreachable even after connecting to the server VPN successfully in both Windows and macOS.
https://resolute.akr.iol.unh.edu/ipa/ui
3) 10.11.6.15 is unreachableunreachable in both Windows and macOS. Ping 10.11.5.15 fail.