How to stop intermittent playback on airtunes (iTunes + Airport Express)?

As soon as I started storing music on my timecapsule and streaming through itunes to airport express, the stream would stop after a couple songs. When playing music on my hard drive there was no problem, just when streaming from the remote hard drive. After searching and experimenting I found no solutions. I downloaded a free trial of Airfoil and realized that the stream was uninterrupted whether from the TC or local.

I know it's not a free solution but its not that expensive, can be used to stream any program and its only $20.

Ok Here is something weird. The solutions: at least for my MBP 2,53 is to reset the PRAM and NVRAM. Without any changes to my network, my Airport express, streaming works fine from the IPhone. Therefor it has to be an issue with my Macbook P. After the reset everything works it the way it's supposed to.

I say it is a hardware issue. I had an old AX (802.11G) that was working fine for several years but eventually started to skip. It was not only music that skipped but the general network stability was bad. I then replaced my main router (Linksys 54GS) and the problems disappeared and the AX skipping got better but not as good (=non existent) as when it was new. With time, the music playback got worse again (while the general network stability was good). No matter what I did, (resetting the AX, changing settings etc) the music skipped skipped skipped!

I finally replaced it with a new (802.11N) AX and now everything is fine (it is combined with a Asus RT-66AC and a Ubiquity Nanostation). You might notice that the AX gets surprisingly hot during playback. After enough hot-cold (expand/contract) cycles the material fatigue sets in and I guess soldering points break, radio transmitter/receiver get slightly out of frequence and other similar degrading of the electronics all help to make the unit unreliable.