I have a web server on the internal side of my ISA server that is published using a server publishing rule. (I do this so that we can generate weblogs) This works very well, accept sporadically the websites are inaccessible to the outside of the firewall. To fix the problem we have found that we have to disable the rule for that server, then re-enable it and everything works fine after that. We have other web servers that are published in an identical manner and never have this problem. BTW, nothing strange is being reported in the event logs on the ISA server when this happens. Any ideas anyone?