Hi Fred,

Currently I've an old box with a OpenBSD 4.2 and OpenNTPd as a server 
working on. It serves the time for my complete network (a /23 range, 512 
servers) without any poblem. The clients are a lot FreeBSDs and some 
OpenBSDs and Debians.

OpenNTPd simply rocks. It's safe, reliable and easy to manage 
(congratulations to Henning and others).

According to symon, the old box is completely relaxed and all works fine 
in any client.

?Can you attach some log/info from _server_?

-- 
Thanks,
Jordi Espasa Clofent