Firebase RealTime Database Socket connection error

I am using fireabse real time database for my application. At times it it unable to form socket connection. But requests made to API hosted on firebase cloud-fucntion works properly. I have used following dependencies :-

    implementation 'com.google.firebase:firebase-core:16.0.4'
    implementation 'com.google.firebase:firebase-database:16.0.3'
    implementation 'com.google.firebase:firebase-storage:16.0.3'
    implementation 'com.google.firebase:firebase-auth:16.0.4'

When I turned on the debug level it gives following :-

2018-11-11 14:13:17.932 14446-14513/com.example.com D/ConnectionRetryHelper: Scheduling retry in 933ms
2018-11-11 14:13:18.867 14446-14513/com.example.com D/PersistentConnection: pc_0 - Trying to fetch auth token
2018-11-11 14:13:18.873 14446-14513/com.example.com D/PersistentConnection: pc_0 - Successfully fetched token, opening connection
2018-11-11 14:13:18.878 14446-14513/com.example.com D/Connection: conn_1 - Opening a connection
2018-11-11 14:13:48.881 14446-14513/com.example.com D/WebSocket: ws_1 - timed out on connect
2018-11-11 14:13:48.882 14446-14513/com.example.com D/WebSocket: ws_1 - closed
2018-11-11 14:13:48.882 14446-14513/com.example.com D/WebSocket: ws_1 - closing itself
2018-11-11 14:13:48.882 14446-14513/com.example.com D/Connection: conn_1 - Realtime connection failed
2018-11-11 14:13:48.882 14446-14513/com.example.com D/Connection: conn_1 - closing realtime connection

This keeps happening on certain device like Mi5 note pro, lenov

[shahsurajk]

Getting the same error on Firebase Realtime database 16.1.0, it doesn’t work on mobile network, but works perfectly fine on WiFi networks, also is much likely to happen on a device running Android 9.

Logs:

2019-03-18 16:21:12.138 D/WebSocket: ws_1 - timed out on connect 2019-03-18 16:21:12.139 D/WebSocket: ws_1 - closed 2019-03-18 16:21:12.139 D/WebSocket: ws_1 - closing itself 2019-03-18 16:21:12.139 D/Connection: conn_1 - Realtime connection failed 2019-03-18 16:21:12.139 D/Connection: conn_1 - closing realtime connection 2019-03-18 16:21:12.139 D/PersistentConnection: pc_0 - Got on disconnect due to OTHER 2019-03-18 16:21:12.139 D/PersistentConnection: pc_0 - Scheduling connection attempt 2019-03-18 16:21:12.140 D/ConnectionRetryHelper: Scheduling retry in 539ms 2019-03-18 16:21:12.682 D/PersistentConnection: pc_0 - Trying to fetch auth token 2019-03-18 16:21:12.689 D/PersistentConnection: pc_0 - Successfully fetched token, opening connection 2019-03-18 16:21:12.692 D/Connection: conn_2 - Opening a connection 2019-03-18 16:21:42.697 D/WebSocket: ws_2 - timed out on connect 2019-03-18 16:21:42.699 D/WebSocket: ws_2 - closed 2019-03-18 16:21:42.699 D/WebSocket: ws_2 - closing itself 2019-03-18 16:21:42.699 D/Connection: conn_2 - Realtime connection failed 2019-03-18 16:21:42.699 D/Connection: conn_2 - closing realtime connection 2019-03-18 16:21:42.700 D/PersistentConnection: pc_0 - Got on disconnect due to OTHER 2019-03-18 16:21:42.700 D/PersistentConnection: pc_0 - Scheduling connection attempt 2019-03-18 16:21:42.702 D/ConnectionRetryHelper: Scheduling retry in 580ms 2019-03-18 16:21:43.284 D/PersistentConnection: pc_0 - Trying to fetch auth token 2019-03-18 16:21:43.287 D/PersistentConnection: pc_0 - Successfully fetched token, opening connection

The same snippet of message occurs in a loop.

[SuhasTS]

I am facing the exact same issue. I am using Firebase Real-time database 16.1.0. As far as I have observed this occurs on some devices when they are on mobile data. This issue is creating a lot of issues in the app.