HTTP::Collect and HTTP::payload Not working

I got some problem,

 

In HTTP::request I'm able to collect only upto 200 bytes using HTTP::collect 200 , if I'm specifying the full body length with full number or using Content-Length of HTTP::header it is not working.

 

In HTTP_DATA_REQUEST only able to collect payload of 200 anything above it is not working.

 

Can you please suggest ?

 

Thanks a lot in advance

 

Pradeep