I recently purchased eero Pro and am having a problem with intermittent disconnects to devices connected to the wireless units.  More specifically, in my setup 2 of the routers connect wirelessly (i.e. not via ethernet backhaul) and I am running Rokus wired off the eero's ethernet/LAN ports.  Fairly frequently when I am watching, for example, Netflix or Amazon, I very briefly lose the signal - the picture either goes blank or shows "static".  The interruptions are very brief but it seems like it happens (on average) about every 15-20 minutes.  Has anyone else experienced a similar issue or have any suggestions?

I should also note that running download tests on the connections provided to the Roku players consistently shows good results.  I previously was running the Roku players wired via powerline adapters with my old router and never had this problem, despite having significantly lower download speeds.