S1's & pt 2020 problems

[roundbadge]

Hi!
Ive just installed 2 new avid S1's on my 2010 Mac Pro tower[10.13.6 High Sierra,2 x 3.33 GHz 6-Core Intel Xeon] with both units to one netgear ethernet switch to port 1.
PT 2020 [current version]
system is jerky, delay in changing outputs.meters on S1's are sluggish.
plug ins launch but immediately disappear.I also try shift launch,they stay on screen a little longer then collapse again.
also one track fader pops up randomly and won't collapse.
ive noticed this goes south after I get to 12 tracks.the 12th track fader pops up randomly and plug ins won't stay open.
basically my rig is a mess now.
completely unusable.
re installed the eucon app and PT 2020 twice, power cycled units etc
also PT won't see the S1's,if they're powered up before I launch PT,
I basically have to turn on the S1's after the PT session has launched
I called avid support and was disconnected twice then got a guy telling me someone might call me back..when?!! he would not say.
please please I don't want to go back to that crippled faderport 16.

[EddieJones]

Hi, sorry I was out last week. How are things now...any better ?