Problems on wake up from sleep

The primary computer goes to sleepmode, second computer not.

Second computer contains audio files. 

Primary computer wakes up, connects normally to the network, all network drives visible and accessible. 

Primary computer runs JRiver MediaCenter 17

When opening MC, all displays normally, all music folders are visible and can be accessed.

When trying to play a track MC times out the same it does when the network drive containing the audio drive is not available.

After unloading Multiplicity all works normally. 

Primary: Windows 7 x64

Secondary: Windows 2008 R2 x64