2140944 - Receiving a timeout during the installation of a self-created iOS Enterprise Application via Afaria

The download of an Enterprise IPA file over Afaria to the device takes one minute until the download starts. During this time the iOS device is running in a timeout.
On the Afaria server the following message is displayed:

PKG1100: Write to iOS device failed. Filename: XXXXXXX.ipa Timeout.

IPCU log from device:
Sep 5 15:42:23 XX-iPad mc_mobile_tunnel[441] <Notice>: (Note ) MC: mc_mobile_tunnel shutting down.
Sep 5 15:42:23 XX-iPad mc_mobile_tunnel[442] <Notice>: (Note ) MC: mc_mobile_tunnel shutting down.
Sep 5 15:42:24 XX-iPad itunesstored[93] <Warning>: LaunchServices: Creating installProgressForApplication:LSApplicationProxy: XX.XX.XXV1.2 (Placeholder) withPhase:0
Sep 5 15:42:24 XX-iPad lsd[254] <Warning>: LaunchServices: Updating installPhase for parent <NSProgress: phase=Loading; state=Waiting; fractionCompleted=0.000000> to 0
Sep 5 15:42:28 XX-iPad mc_mobile_tunnel[444] <Notice>: (Note ) MC: mc_mobile_tunnel shutting down.
Sep 5 15:43:24 XX-iPad lsd[254] <Warning>: LaunchServices: installation failed for app XX.XX.XXV1.2
Sep 5 15:43:24 XX-iPad itunesstored[93] <Warning>: LaunchServices: installPhaseFinishedForProgress: XX.XX.XXV1.2.Loading - <NSProgress: phase=Loading; state=Failed; fractionCompleted=0.000000> called, removing progress from cache

SAP AFARIA 7 SP4 HF12

KBA , MOB-AFA , Afaria , Problem