No response behavior, normal again after restart

Service is working normally again after I restart it. Post is done internally through localhost:5055
I have -7d logs and all have the same content. Must be going on for a while. What might be the issue?

2025-02-03 04:32:16  INFO: [Te3b16de1] connected
2025-02-03 04:32:16  INFO: [Te3b16de1: osmand < 127.0.0.1] POST /?id=[redacted]×tamp=[redacted]&lat=[redacted]&lon=[redacted]&altitude=[redacted]&speed=[redacted]&odometer=[redacted]1 HTTP/1.1\r\nuser-agent: got (https://github.com/sindresorhus/got)\r\nContent-Length: 0\r\nHost: localhost:5055\r\nConnection: close\r\n\r\n
2025-02-03 04:32:17  INFO: [T3b1fa92d] disconnected

Seems like your client is disconnecting too quickly.

Some have 10s waiting time. I only have one entry node with data queued. Actual incoming data are handled via MQTT.
Maybe best set the keep-alive flag?

2025-02-03 03:11:14  INFO: [Te72a5962] connected
2025-02-03 03:11:14  INFO: [Te72a5962: osmand < [message]
2025-02-03 03:11:25  INFO: [T0734a485] disconnected

2025-02-03 03:11:25  INFO: [T4f6a1cfa] connected
2025-02-03 03:11:25  INFO: [T4f6a1cfa: osmand < [message]
2025-02-03 03:11:26  INFO: [T22273f29] disconnected

2025-02-03 03:11:26  INFO: [T03b5d53d] connected
2025-02-03 03:11:26  INFO: [T03b5d53d: [message]
2025-02-03 03:11:37  INFO: [T6a93b180] disconnected

2025-02-03 03:11:37  INFO: [Tbc3372d1] connected
2025-02-03 03:11:37  INFO: [Tbc3372d1: [message]
2025-02-03 03:11:38  INFO: [T96d3153c] connected
2025-02-03 03:11:38  INFO: [T96d3153c: [message]
2025-02-03 03:11:38  INFO: [T80eb57b3] disconnected

2025-02-03 03:11:49  INFO: [Te0e42e86] connected
2025-02-03 03:11:49  INFO: [Te0e42e86: osmand < [message]
2025-02-03 03:11:49  INFO: [T97b78038] disconnected

I see that it disconnects after 1 second, not 10. That's probably too little.