1 x a week you should shut down your router for a minute ,No power
then let it reboot it clears the cache and operates more fluid
also you want better sound and faster buy a new router- modem combo
I bought the Motorola 8702 Thst has docsis 3.1 modtolder ones still use 3.0
the is much faster bigger processor andbuffer ,wifi too much better for tv I useRoku. For music to stream better clearer music as I did ,most routers are 12v
using a garbage $10wallwart Buy a decent LPS power supply ,it tells onthe wall wart or unit howmany volts ,they take roughly 4 amp. I bought the gemstone under $1200 for $700 ,have tested many Linial tube Audio, handles up to 8 amps great build quality and comes witha excellent Dc cable to router most others charge $150for , buying onAudiogon save $50 -$700+$30 shipping great build quality
and streaming is much better sounding. I also but a decent Ethernet hub $600
that has a LPS ,low noise regulators and a ocxo over controlled clock ,very good value , and buy quality Ethernet cables ,the most critical going into the streamer .
everything counts to get good sound.