[HELP] Kernel upgrade

I use Asterisk at home 1.5 but since I have made a kernel upgrade from 2.4.21 to 2.6.13. Everything works fine except this annoying message that appers in the Asterisk console “Retrying gatekeeper registration” .
Where could be the problem??

did you recompile the Asterisk after changing the kernel ? i’ve never seen that error btw.

Yes i did it but it dose not help.
I have no idea what could be wrong.