GroupWise Webaccess, Apache2 and SSL

HTTPS:// stops working after 21 hours went accessing GW webaccess. HTTP://
works fine. This only happen after I updating the GroupWise servers to
NW65SP6 and installing GW701IR1 for Webaccess. The problem seems to be
related to Apache and SSL. Not sure what but if I restarted the server the
problem goes away until 21 hours later and access to https:// display an
error page but http://work fine. The server does not abend and no
noticeable problems with Java. Any ideas.