[RTTY] PTT-problems

[Gösta Larsson]

I am using MMTTY in FSK-mode and have a small  homebrew AA5AU-type interface and an Prolific USB-adapter and EXTFSK. All works well when computer starts but after a while not using the MMTTY but coming back to it to find the PTT fails. If I restart the computer all is OK again until next failure. I have tried to disable the power saving of the USB Root Hubs bút it does not help me. Anyone has a solution for me?
73
Gus SM4CTT 
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Gösta Larsson
Stjärnsforsvägen 39
663 31  SKOGHALL
Tel. 054 - 51 90 37