Troubleshooting question

[ted_b]

Thx. No link aggregation, just using bottom Ethernet port (LAN 4) and set up for static IP and IPv6 turned off (as per Synology). Using 8.8.8.8 as DNS server, etc. As you could see whether I go through Diablo (fiber LC multimode-via FMC converter) or go to router (copper Cat6A) something is causing bandwidth/buffering issues.

I will virtually copy and paste my posts here to create a Synology thread. Thx so much for your efforts, even though we, early on, determined Minimserver to not be the culprit.