let me first provide alle the installation details:
The „About“ Page - please be aware that a RoPieee device is listed.
The Roon Core is runing on a Synology 218+ with the latest DSM (DSM 6.2-23739 Update 1), 10GB RAM, 250GB SSD, Intel Celeron J3355 - 2 Cores
The Music is stored on an local disk (10TB Ironwolf) on the same NAS as the Roon Core is running.
The Roon Catalog is stored on the 250 GB SSD atached to the NAS via USB3.0
I am storing ~7500 tracks.
The Endpoints are not listed (see screenshot below). There should be two of them: a Raspberry Pi3B with RoPieee and a Chromecast Audio. The RoPiee is even listed in the “About” page.
The Ropieee was working flawlessly before the update to Build 334. The Chromecast obviously not as it was not supported in the earlier builds.
The firewall of the NAS allows the Roon traffic. To be 00% sure that tis is not the root cause I tested with the firewall disabeled.
All devices are rebooted. There are no crashes or other strange behaviour. I cal play directly to iOS devices or my local PC.
Hope this helps & thanks in advance,