Solaris 9 as a nfs client -- centos as a nfs server.

Hello,

I have a centos as nfs server, its name is centos_A.
After I finish the setup of the nfs server, the other linux can access this nfs server immediately via /net/centos_A/*
But,
My solaris 9 can not access /net/centos_A/* immediately. I have to leave /net/centos_A, and wait for about 15 minutes, then solaris 9 can access /net/centos_A/*
or,
I have to reboot it. After I reboot it, it can access /net/centos_A/*

On my solaris 9, I tried to restart /etc/init.d/nfs.client, /etc/init.d/nfs.server. But obviously, it is not helpful.
The only thing I can do is waiting for about 15 minutes or reboot my solaris 9.

Why?
I think I can restart some process on my solaris 9 , then my solaris 9 can access /net/centos_A/* immediately.

Thanks.

Bruce

sounds like a auto-mounter problem. can you mount the nfs share manully?

mount -F nfs server:/share_dir /local_mountpoint