@David-TP Hi there. I can confirm the switch is connected to the eero bridge. I've also checked the speeds of the connected devices, my mac for example is 1000mb/full duplex.

I can't really follow the last link as it seems to be windows specific and I'm on Mac, however, it's been suggested on another forum that the problem is with the throughput of the switch and I need to get a faster one. I've only had it a few weeks.

  @BH1983  did you enble jumbo frames  on your wired pc  that might help not sure why you be throttled

  @tonyjp2022 I've enabled Jumbo on my mac but it didn't make a difference, speed is still topping out at about 500Mbps

  @BH1983 

there's LEDs on the switch stating whether 100Mps or 1000Mps. could you check that the physical signaling rate is 1Gbps all along the chain of devices.

MAC do not use to get LEDs but one can consult the signaling rate over the network configuration tab (same aplies for windows).

Once you're sure of your physicalsetting. You'll be able to consider a high level as App level and communication level.

Please also consider that 1Gbps signaling allows roughly 800Mbps data (around 20% of the bits are used to maintain the communication as service data). You can go higher with compression and other technical tweaks.

This 800Mbps makes a data signal around 100MBps.  So 350MBps over a Gbps link seems a little overated. 

But it looks like a good 350Mbps throughput through a disk accessed via network where the disk is the limiting element.

I got also very creative network speed test results depending on the browser and test website i´ḿ using. So beware of the raw results.

Did you try to plug your switch between the router and the eero ? compared to the switch plugged after the eero ? with and without eero ?

Some wifi stuff are doing weird things out of unicast links and then you're loosing most of your throughput on your switches.

Regards,

Eric.