I found my old cordless home phone systems (I think 900 mhz and 1.2Ghz) were interfering with my wireless router. Every time a phone is in used, wireless connection would drop. I bought a DECT 6.0 phone system and it resolved the problem.
Last month I'm hard wired the DAC and music server to my router and surprisingly the sound improved dramatically over wireless.
Last month I'm hard wired the DAC and music server to my router and surprisingly the sound improved dramatically over wireless.