Wie komme ich der Ursache für den Socket error auf die Spur?
1542018430: New client connected from <meineIp> as mqtt2 (c1, k30, u'udo').
1542018460: Socket error on client mqtt2, disconnecting.
1542018461: New connection from <meineIp> on port 8883.
1542018461: New client connected from <meineIp> as mqtt2 (c1, k30, u'udo').
1542018531: Socket error on client mqtt2, disconnecting.
1542018531: New connection from <meineIp> on port 8883.
1542018531: New client connected from <meineIp> as mqtt2 (c1, k30, u'udo').
1542018602: Socket error on client mqtt2, disconnecting.
1542018602: New connection from <meineIp> on port 8883.
1542018602: New client connected from <meineIp> as mqtt2 (c1, k30, u'udo').
1542018672: Socket error on client mqtt2, disconnecting.
1542018672: New connection from <meineIp> on port 8883.
1542018672: New client connected from <meineIp> as mqtt2 (c1, k30, u'udo').
1542018742: Socket error on client mqtt2, disconnecting.
1542018742: New connection from <meineIp> on port 8883.
2018.11.12 11:32:45 5: mqtt2: keepalive 30
2018.11.12 11:32:45 5: mqtt2: received PINGRESP
2018.11.12 11:33:15 5: mqtt2: keepalive 30
2018.11.12 11:33:15 5: mqtt2: received PINGRESP
2018.11.12 11:33:25 1: <host>:8883 disconnected, waiting to reappear (mqtt2)
2018.11.12 11:33:25 5: HttpUtils url=https:/<host>:8883/
2018.11.12 11:33:25 1: <host>:8883 reappeared (mqtt2)
2018.11.12 11:33:25 5: mqtt2: received CONNACK (0)(0)
2018.11.12 11:33:25 5: mqtt2: received SUBACK (0)(9)(0)