dsc3507 wrote:No this is definitely an audio/USB problem and has nothing or little to do with the network although the network being on the USB would certainly make it worse. .
Don't believe what you read NOW about problems that existed in the past.... The USB audio problems didn't always exist and have been solved again some time ago (see post above, which suggests otherwise but I can not reproduce it) .
The problem is definitely buffering and or hogging CPU. Audio won't do that, it is light on the cpu and also on the bus. Drivers do sometimes. So look elsewhere..... I mean it. Don't focus on something that happened in the past. Look at the current software and then start to eliminate the issues. I am running a very up-to-date wheezy and a Jessie and have no problems at all with USB audio and a Creative USB card. Real-time.
Tip: the network IS able to hog/block, as I explained before. Don't ignore that. I am also pretty sure you didn't eliminate swap IO.