i admit my pc is low but i found out when i open with phbot (without manager) the client open. it take too much GPU to load so when manager send the log in credentials too fast it take dc before reaching log in screen bec screen is stuck as gpu is low
so i think if you -please- added delay option before sending credentials it will prevent the disconnect before reaching login screen ?
i will leave here ss for it and i hope you add this option
here screen when opens with manager and disconnect before reaching log in screen as always happen