This is one of those bug reports that I absolutely HATE to send, because it's so vague, and hard to define exactly what is going on.
Here is what I have observed over the last 2 or 3 days (I've never seen this on earlier versions). After sending a line of text, everything stops. The callsign that I'm linked to is greyed out. No ACKS/NAKS are sent, and within a few seconds (10?) Vara-HF sends a DISCONNECT.
Exiting and re-starting VarAC returns everything to normal.
Nothing has changed on the PC, and the only other software that is running is Log4 OM.
73, Joe
It does sounds like the "varahf" dead lock issue. This is when both sides transmit at the same time over and over again. At some point both sides hang and a few seconds later the link get disconnected. It happened to me on my test environment rarely. This was once very common until i reported this to Jose and he added a random timer for the next attempt. I did notice it still happens but not as frequent as in the past . Based on my experience, no need to restart VarAC. Reconnecting is enough. Did it happen to you with the same person ? Or with different hams. And just to be sure, you run varahf 4.5.0? Irad.