Doesn’t work on 10.11.x

I am running Mac OS 10.11.1.I I upgraded the Trade Interceptor to the latest version and it stops working. When I tried to login, it stopped at ‘Searching for available server’ and keep giving me the error ‘No servers available at this time. please try again later.’ However, the Trade Inteceptor on my other mobile devices (on the same network) connect just fine. I want to downgrade it back to the previous version.

Bat Fung (CA) about ThinkTrader, v2.4.3