Hi @ColdBusted ---- Thank you for the report and sharing this observation you have made with your Roon remote. The feedback is appreciated and sorry to hear of the troubles.
I agree with @crieke’s suggestion in regard to verifying that the IP addresses being assigned to your devices are all within the same range. Additionally, I did some research into the mentioned switch (i.e the Cisco SG200-08) and can see that it is a smart managed switch and we have seen a few issues crop up with these devices in the past (Example: #1, #2, #3, #4). I would recommend enabling flow control on the switch, to see if this action yields a change in performance with the Pixel 2XL.
Furthermore, can also try disabling igmp snooping on the switch as well.
-Eric