What is noise on Ethernet? If you have noise, what does it sound like on Ethernet?
Since I installed corporate networks starting back in the late 80โs, I ran a few ip packet sniffers and used a few fluke meters, and you can determine if an ip packet has issues.
Before I spend this kind of money on a switch which has the easiest job to do in a lan/wan, I would start at making sure each Ethernet cable is certified by a fluke meter. If you have emi issues, use a good quality shielded Ethernet cable, preferably a cat7. Sniff the ip packets before hitting the switch and the look at the packets after the switch to see if you have any errors or do the packets look different. With todayโs fast home networks, at 1G or higher, your cables could be your weakest link.