Apparently it doesn't match my previous configuration:
https://i.imgur.com/bZ30KBH.jpgLOG:
Feb 14, 2019 2:51:29 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: FindCandidate: Probing 10.3.15.
Feb 14, 2019 2:51:34 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: FindCandidate: 10.3.15.1
Feb 14, 2019 2:51:34 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: FindCandidate: 10.3.15.27
Feb 14, 2019 2:51:34 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: FindCandidate: 10.3.15.17
Feb 14, 2019 2:51:34 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: FindCandidate: 10.3.15.15
Feb 14, 2019 2:51:34 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: FindCandidate: 10.3.15.107
Feb 14, 2019 2:51:34 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Ping: 10.3.15.1
Feb 14, 2019 2:51:36 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogError
SEVERE: Ping: failed to connect to /10.3.15.1 (port 27304) from /10.3.15.16 (port 32778) after 2500ms
Feb 14, 2019 2:51:36 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Ping: 10.3.15.27
Feb 14, 2019 2:51:36 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Ping: MusicBeeWifiSyncServer/1.0
Feb 14, 2019 2:51:40 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Start: MB unable to match volume names (2)
Feb 14, 2019 2:51:40 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Start: Phone memory
Feb 14, 2019 2:51:40 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Start: SD card
Feb 14, 2019 2:52:00 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Start: MB unable to match volume names (2)
Feb 14, 2019 2:52:00 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Start: Phone memory
Feb 14, 2019 2:52:00 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Start: SD card
Feb 14, 2019 2:52:34 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Start: MB unable to match volume names (2)
Feb 14, 2019 2:52:34 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Start: Phone memory
Feb 14, 2019 2:52:34 PM com.getmusicbee.musicbeewifisync.ErrorHandler LogInfo
INFO: Start: SD card