Hello,
I got a new 4 TB Seagate IronWolf drive and decided to make a fresh reinstall on my old build based on a GA-J3455N-D3H motherboard which ran DSM 6.1 perfectly. I tried using DS3615xs and DS3617xs loaders. The system starts up normally but after the first boot message I'm not able to find it with Synology Assistant. I checked my router settings and it won't show up. Has anybody got an idea why?