Problem with my LAN

When i ask OPEN LAN, i'm waiting to have my Lan number. But after upgrade (1.4.2). I cannot have it anymore...

all it say is 0.0.0.0;50395 (the last 3 number are always different)

Steps to Reproduce:
1. have a version from 1.4.3 to 1.5.2
2. start a world
3. Esc
4. open to lan
5. choose game mode; survival or creative
6. start Lan world
7. the screen show me the game hosted 0.0.0.0;50356
8. i press T to have second look

And that is my problem,.. and i know that i'm not lonely in this situation