[Elecraft] Memory mode with K2

[Hans Bonnesen]

Using Ham Radio Deluxe ( free version ) with my K2 I have noticed: 
 
1) at intervals the HRD locks down saying:
No connection to your radio as it has entered a memory mode.
Sitting 200 miles away this is the sad end to remote operation.
The only way out, is to pull the big switch using my cell-phone 
remote off-switch. This will “kill” the K2 and its companion PC.
The K2 manual does not mention this anywhere,
or could I have overlooked something.!!!

2) Another strange behaviour is that the “TUNE”  position  is 
accidentally locking in, causing the K2 to emit constantly a tuning signal.
There is apparently no way to reset the K2, and again I have to
“kill” the whole set-up by using my cell-phone remote off-switch!

Sad show indeed. —— Any similar experiences and ways to defeat the issue ?

With thanks
 
Hans, OZ5RB