I have cron’d code which picks up new @replies to this account only. It has been returning 401 now for the past 48 hours. I have tried re-authenticating. On Tuesday it was doing it intermittently. It is now doing it on every call (every 10 minutes).
The request is: http://api.twitter.com/1/statuses/replies.json?count=200&include_entities=true&since_id=217365510059339777
The Authorization: header was: OAuth oauth_consumer_key=“InGec0wsGXiK266jWUhOGQ”,oauth_nonce=“8o04h1wrvOOBn4RCxw6pF4EoOW8”,oauth_signature=“WAC73Bh6BAJ0M14uSMKGsOevkbU%3D”,oauth_signature_method=“HMAC-SHA1”,oauth_timestamp=“1340872664”,oauth_token=“16719737-PsjtIiFm05bLnqWowj2xBfaDgiCs8j2CeGuo9O6Z0”,oauth_version=“1.0”
Hope that helps.
Cliff.