SMLIGHT coordinator switches to USB mode due to SSE connection errors


I am running my SMLIGHT slzb-06m coordinator in ethernet mode and it disconnects and swaps to usb mode then I get a SSE error not sure why. I haven’t messed with any of the firewall settings on my router and it happens every other day or so. Any help ? Attached below is my zigbee2mqtt config yaml
homeassistant:
enabled: true
legacy_action_sensor: true
experimental_event_entities: false
advanced:
network_key:
- 148
- 85
- 246
- 165
- 46
- 232
- 9
- 241
- 70
- 219
- 125
- 85
- 231
- 192
- 161
- 67
pan_id: 12833
ext_pan_id:
- 235
- 20
- 44
- 140
- 47
- 9
- 231
- 238
mqtt:
server: mqtt://core-mosquitto:1883
user: addons
password:
frontend:
enabled: true
port: 8099
serial:
port: tcp://192.168.50.210:6638
adapter: ember
baudrate: 115200

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