Hi,recently I've faced the problem that whenever I'm in IFR, the Departure controller just won't hand me over to Center, no matter how high and far away I am. And then all of a sudden the ATC window shows nothing but the "Nearest airports" option and I'm in VFR. Actually, there's not even a message that the radar service is terminated, nothing - it simply ends at a point.Has anybody an idea how this can be or even more important - how I could fix that?I have no Add-ons installed except FSUIPC4 and made no changes recently.Thanks in advance

Have you changed the ATC window display settings from the default (automatic display)? There is a well-known bug in FSX that stops ATC responding after a period of time if you try to change the ATC window settings. Maybe this is what you are experiencing?Cheers,Noel.

It's always been on automatic display. And basically everything works perfectly fine with ATC until I reach FL 180, then I hear nothing, no handover, no new instructions, only messages exchanged with AI planes. And when I leave the area it falls totally silent.

Zip and attach a flight plan you use which consistently has this issue.I've never heard of anyone having this problem - so it is probably related to a specific area or set of ATC boundaries.

Occured on the last three routes I flew (see zip)LIMC, KMEM and EDDK, all airports I have departed from before

I just found that I had accidentially removed the bvcf.bgl and lak.bgl when deleting AI flight plans -.-Lukily I still had them so I restored them and everything works fine again!Thanks for your help