FLAC is a lossless protocol. Decompressed FLAC files are bit-perfect in comparison to the source WAV files. Bits are bits. Fred is correct. Routers and other hardware that operate in the digital domain have built-in error correction. Analog signal chains suffer from error propagation.
Update on good Ethernet switch
ASI mentioned before I didnot want to say the brand until I heard the Ethernet switch not only after 300 hours which was recommended having a OX over controlled clock ,
and with what myself always do the weak link on any audio component starts with the stock power cord , for minimal monies the Pangea using Cardas grade 1 copper 6-9s. Awg14 sig,Mk2 , and getting rid of the 50 cent bottle neck fuse I put in a 1.25amp 20mm L ,slow blow synergistic purple fuse these increase fidelity at least 5-7% the switch itself At least 5% if you know the name Jays audio for transports ,his other company LHY Audio the SW8 Ethernet switch for $595 nothing has all this in a nice machined aluminum case , even the uptone ether regen or Sonore deluxe using a with fiber optic which btw lessens the realism imo both were used witha Sbooster2 LPS , ,theSW8 Ethernet switch is a great buy ,and if you add a decent power cord and upgrade the fuse you will be rewarded further , 7 of us reviewed this and 6 out of 7 thought it was a noticeable improvement vs the others there were2 other brands which were more ,that were not even that good and had switch mode pS