[twitter-dev] I have a problem with update my status across API

When I try update my status sometimes I have success, but sometimes status not updated and I receive empty response and http code is 0 I have no exceed twitter limits. Why this problem may occur?

[twitter-dev] Update twitter status error!

Good time! I try to post update status into my twitter account across API, but this not work. When I create a new account, and use this authorization data update for this post successfuly. When I compare responses from two accounts I find difference beetwen field "sources". First account (which no