mountd problem with 4.0_RC5

nas# cat /etc/exports
/export1/NetBSD -maproot=build -network 192.168.1 -mask 255.255.255.0

nas# ls -l /export1
total 4
drwxrwxr-x  9 build  wsrc  512 Dec  4 06:35 NetBSD
drwxr-xr-x  4 build  wsrc  512 Nov 20  2006 OpenBSD

Dec  6 05:40:56 nas rpcbind: connect from 192.168.1.25 to getport/addr(nfs): 
request from unauthorized host
Dec  6 05:40:56 nas rpcbind: connect from 192.168.1.28 to getport/addr(nfs): 
request from unauthorized host
Dec  6 05:40:56 nas rpcbind: connect from 192.168.1.27 to getport/addr(nfs): 
request from unauthorized host
Dec  6 05:40:56 nas rpcbind: connect from 192.168.1.25 to getport/addr(nfs): 
request from unauthorized host
Dec  6 05:40:56 nas rpcbind: connect from 192.168.1.19 to getport/addr(nfs): 
request from unauthorized host

This worked with RC4

Suggestions?
-- 
John R. Shannon