Exactly the same symptoms you describe! At the same time we had problems with legacy authentication, but the real solution is to disable the desktop firewall.
This version for MAC includes desktop firewall... So if you can, edit the ttm file on the gateway and change the "default" of "enable_firewall" from "true" to "client_decide"
The client default is false.
...
:enable_firewall (
:gateway (
:map (
:false (false)
:true (true)
:client_decide (client_decide)
)
:default (client_decide)
)
)
...
Best regards