Nas Sonarr - Windows Emby server

Sonarr version (exact version): 2.0.0.5344
Mono version (if Sonarr is not running on Windows): 5.8.0.108
OS: Synology NAS DS 418+ (ARM)
Debug logs:HTTP Error - Res: [POST] http://172.16.1.115:8096/mediabrowser/Notifications/Admin: 401.Unauthorized
Description of issue: Cannot establish connection to Emby Winodws server - can connect to this server for SABNZB, Plex that is running on this Windows Server

What do I need to change to get Sonarr to connect to Emby?

Looks like your API key is wrong (unauthorized).