Hello. I have noticed a fair amount of people having interference issues with the E18 and their phone but I have an issue with interference and my laptop. I have the E18 paired with my laptop as a DAC and then through a pair of Audioengine A5+. All is good until I decide to change wifi network then I get lots of crackling and the music stops and starts skipping track after track. Im wondering if this is an interference issue with the wifi or a driver problem? Any suggestions would be gratefully welcomed.
Ferrite clamps on your (USB) wires can help.
Alternatively, try setting your WiFi router manually to another channel and test different channels (and disable modes you do not use, ex. a/b; leave only the 5Mhz band active).
Why can one have interference?
Any wire is an antenna. The radio waves will try to find the first/best conductor they can find, so that will be your computers wires, motherboard, the E18 electronics, etc. This is nature and nothing can be done ... but ferrite clamps and/or shielding devices/wires.
Background info, tips and solutions:
http://analogictips.com/tips-electrical-noise-reduction/
http://en.wikipedia.org/wiki/Electromagnetic_interference_at_2.4_GHz
http://electronics.stackexchange.com/questions/32830/why-does-gsm-cause-speakers-to-buzz
http://www.audio-technica.com/cms/site/d0c406516fd8b42b/
http://www.eargamers.com/guides/interference-wireless-gaming-headset/
http://superuser.com/questions/373327/wifi-static-noise-through-speakers-n-only
http://www.techpowerup.com/forums/threads/wireless-causing-speaker-noise.144348/
Shielding can be around the computer/device and/or the ferrite clamps around the wires (USB, power, ...).
I hope this can help.
With kind regards,
Casperbxl