title: Firebase Android Authentication failed: expired_token (Auth token is expired)
body: <p>I encounter an issue with Android Firebase Auth using <code>com.google.gms:google-services:3.0.0</code> and <code>com.google.firebase:firebase-auth:9.0.1</code>. </p>
  
  <p>1 hour after authentication with Firebase (Google or Facebook), I get the following error: </p>
  
  <p><code>W/PersistentConnection: pc_0 - Authentication failed: expired_token (Auth token is expired)</code></p>
  
  <p>Why does Firebase token expire after 1 hour and how to extend this expiration period?</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>I still encounter this issue, Firebase token expires after 1 hour. Now I get the following message:
  <code>W/PersistentConnection: pc_0 - Authentication failed: invalid_token (Invalid claim 'kid' in auth header.)</code></p>
  
  <p>I appreciate any help.</p>