Skyconnect doesn't discover devices via ZHA

Hello. My Skyconnect just arrived Im using a Synology 918+ with HA OS running on a VM. I assigned the USB Port to the VM. The Skyconnect can be selected as the Coordinator for ZHA, but no matter what i do, it can’t discover any new Zigbee devices. I tried reinsalling, rebooting OS, VM, different Port, Different Cable, many ZB Devices. Nothing works :confused:

Im Also using Z2MQTTT but with the Sonoff Dongle, but on another Port, so this shouldn’t be the issue.

No clue what to do.
Hope someone can help

After spending the whole day experimenting, it works now. Even though i used the extention cable, it might be to short /not shielded enough for my Serverrack. I bought an 3m USB Cable go get away as far as possible from interferance sources. Now it works.