Sometimes get Response Code: 401 during OAuth authorization

[GoogleCodeExporter]

I develop android application that backup photos to flickr.

I had the next problem several times: 
Sometimes I receive 401 response ("Response Code: 401, Response Message: 
Unauthorized, Error: oauth_problem=token_rejected") instead of  response 
with access token, during Exchanging the Request Token for an Access Token.

This problems happens mostly when I have bad internet connection (when I am 
suing 3g internet).

Here are logs that shows this behavior:
2015-01-07 17:12:00,603 DEBUG [oauth.OAuthInterface]-[122] Getting Request 
Token with parameters: <a 
href="https://www.flickr.com/services/oauth/request_token">www.flickr.com/servic
es/oauth/request_token</a> [
    Parameter [name=oauth_callback, value={MY_APP_NAME}-flickr://callback], 
    Parameter [name=oauth_consumer_key, value={MY_CONSUMER_KEY}], 
    Parameter [name=oauth_nonce, value=154099562370628], 
    Parameter [name=oauth_signature_method, value=HMAC-SHA1], 
    Parameter [name=oauth_timestamp, value=1420630920], 
    Parameter [name=oauth_version, value=1.0], 
    Parameter [name=oauth_signature, value=oVkmG/7nOoiO0P6Dm2j4Aql4lDs=]
] 

2015-01-07 17:12:01,695 DEBUG [oauth.OAuthInterface]-[136] 
    Response: {oauth_token_secret={RESULT_OAUTH_TOKEN_SECRET}, oauth_callback_confirmed=true, oauth_token={RESULT_OAUTH_TOKEN}}

After that I open next url in browser for user:
url = <a href="https://m.flickr.com/services/oauth/authorize?oauth_token=" 
rel="nofollow">m.flickr.com/services/oauth/authorize?oauth_token=</a>{RESULT_OAU
TH_TOKEN}&amp;perms=write

After authorization I get next callback: 
{MY_APP_NAME}-flickr://callback?oauth_token={RESULT_OAUTH_TOKEN}&amp;oauth_verif
ier=59bbeb1cb3ffedca

Using verifier I make next request:
2015-01-07 17:12:47,043 DEBUG [flickrjandroid.REST]-[288] Send Post Input 
parameters [
    Parameter [name=oauth_consumer_key, value={MY_CONSUMER_KEY}], 
    Parameter [name=oauth_nonce, value=154146242657849], 
    Parameter [name=oauth_signature_method, value=HMAC-SHA1], 
    Parameter [name=oauth_timestamp, value=1420630967], 
    Parameter [name=oauth_token, value={RESULT_OAUTH_TOKEN}], 
    Parameter [name=oauth_verifier, value=59bbeb1cb3ffedca], 
    Parameter [name=oauth_version, value=1.0], 
    Parameter [name=oauth_signature, value=yZjgD6iKGxn4lzJVuZHnEaqWsHE=]] <a href="https://api.flickr.com:443/services/oauth/access_token" rel="nofollow">api.flickr.com:443/services/oauth/access_token</a>

The response is: 
Response Code: 401, Response Message: Unauthorized, Error: 
oauth_problem=token_rejected

What can cause the reject of token? 
Can I try make another request using same verifier after getting 401 response 
or this will also return 401 response?

This problem happens just sometimes, usually during bad internet connection.  
For authorization I use flickrj-android-2.1.1

Original issue reported on code.google.com by ros...@codeminders.com on 15 Jan 2015 at 3:46

[GoogleCodeExporter]

I am experiencing the same problem. happens usually in the afternoon here pst.. 

Original comment by C.W.Den...@gmail.com on 17 Jun 2015 at 11:23