HTTP 401 error on messaging app

[riverplate]

I get the HTTP 401 error unauthorized message when trying to view a MMS on my samsung galaxy S2 using the messaging app that came with the phone.
How do I fix this problem. I tried to go into settings but I'm only able to change the number of MMS messages allowed. Please help..

When using other messaging apps like XMS, the phone can send or receive MMS without a problem

 

[Doc]

Welcome to the forums riverplate, you might check in here : Samsung Galaxy S2 (International) - Android Forums

Also you can look in your carriers section also, im sure you can find someone to help you out with this...