Problem with connectivity over wifi and mobile.

[giovanny1307]

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Issues filed here should be about bugs in the code in this repository.
If you have a general question, need help debugging, or fall into some
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• For general technical questions, post a question on StackOverflow
  with the firebase tag.
• For general Firebase discussion, use the firebase-talk
  google group.
• For help troubleshooting your application that does not fall under one
  of the above categories, reach out to the personalized
  Firebase support channel.

[REQUIRED] Step 2: Describe your environment

• Android Studio version: 3.62
• Firebase Component: Database
• Component version: 19.2.1

[REQUIRED] Step 3: Describe the problem

We have our app in production, and we have receive several cases of clients using the app. They told us that the app does not load any content or takes too long to load the content.

We though this might be a connection issue, but the have strong wifi connections of 20 MB/s.
The issue is also present with mobile data.

Our content is not to heavy, 400 kb tops, the callback is received in times up to 5 minutes, I start noticing this issues around the 31 of march, the only change i've made was to update to the latest component of the sdks, I will rollback to a lower version, to see if this issue is resolved.

### I will use the next configuration:

implementation` 'com.google.firebase:firebase-database:19.1.0'
implementation 'com.google.firebase:firebase-storage:19.1.0'
implementation 'com.google.firebase:firebase-core:17.2.0'
implementation 'com.google.firebase:firebase-auth:19.1.0'
implementation 'com.google.firebase:firebase-messaging:20.0.0'
implementation 'com.firebase:firebase-jobdispatcher:0.8.5'

implementation `'com.firebaseui:firebase-ui-database:4.1.0'

This was my previous configuration

implementation 'com.google.firebase:firebase-database:19.2.1'
implementation 'com.google.firebase:firebase-storage:19.1.1'
implementation 'com.google.firebase:firebase-core:17.3.0'
implementation 'com.google.firebase:firebase-auth:19.3.0'
implementation 'com.google.firebase:firebase-messaging:20.1.5'
implementation 'com.firebase:firebase-jobdispatcher:0.8.5'

implementation 'com.firebaseui:firebase-ui-database:6.2.1'`

Steps to reproduce:

I my self can't reproduce the problem, the only times were loading data is slow is when i have connection speed of less of 1 MB.

As i told, the problem is being experimented by actual users using the app.

Relevant Code:

[giovanny1307]

#1258