I got a Jitterbug in today. Thought I give it a try. Setup is:

mid-2009 Macbook Pro hardwired to the network. Using USB -> Peachtree T1 (USB to SPDIF converter) -> Lyngdorf preamp (the digital in). Works great running Roon with the Jitterbug. Both USB and digital cable are DH Labs Silversonics.

When I insert the Jitterbug "no audio device" is found in Roon. Also can't be seen by the Macbook. Without, both identify the Peachtree with no problem. It's an easily repeatable problem. The Peachtree is getting power as I can see the blue "on" light each time. Jitterbug seems to be issue.

Anyone else having this behavior?

Control:10, TwinStore, Lyngdorf DPA-1 Preamp, Linn Klimax Stereo Amp, Piega TC 70X speakers, QNAP TS-451 8TB.

Roon setup (temporary): 2009 Macbook Pro with a 1TB Hibred Drive and 4Gigs of RAM, Peachtree Audio T1 USB to SPDIF. FLAC files are kept on the QNAP TS-451 NAS. I use Rosewill (Newegg) Cat-7 Ethernet Cable on all connections.