OKay this happened the other night and I put it down to me not doing something right, but it has happened again tonight!
The other night I was on a EGKK to LIRN flight, I was after a while passed to Brussels Centre, when I switched I go not ATC dispite checking in a number of times. I had to go back to the old freq and then I was given a new contact. at that point it was frnakfurt radar and my flight continued.
Tonight I was flying EGKK to LFMN and was passed to London Control and I had the same issue. I checked in, well tried to and got no reply, I remained on freq and see what happened .. Nada! All I got was one traffic advisory and then nothing further. I tried a few times to contact control and never had any success. I decided to leave things as they was and submit the log for inspection.
I also took two pics of my last 10 contacts from ATC just to confirm that they are all that I ended up with.
Hope that these files help.
Regards Rob