Network Switches

No idea about the reasons why. I can tell you that when I put the TPLinks, the improvement was almost nonexistent. Totally different level with the opticalModules.

Just for sh*ts and giggles, I remembered this from Clones Audio.
https://www.clonesaudio.com/networking

FunJoe's switches have been out for quite a while and may be worth a look. He has two versions: one with 24 ports, a Femto clock and upgraded LPS and the other is an 8 port unit with (I think) just the Femto clock.

All the best,
Nonoise

@thyname  Thanks. Your findings are important to me. I've held off on adding fiber "links" within my system because I do not want to screw up aspects like timbre and tonality (both of which you report on positively) etc.

Thanks @david_ten  

To spice things up, I ordered the EtherRegen the day it launched. Lucky enough, able to make into the first batch. So it ships on November 15th. It will be interesting to compare it with the opticalModules. Replacing them entirely. We'll see ....

Yw David.
Of course now have to decide if I want to purchase them or look at other avenues.
i am sure I would get them at about 45% of retail but still a fair cost
Decisions!