Why does ISA server continue to fail publishing srevers

[AlienFromAnotherGalaxy]

I have had this problem constantly with ISA server. It has never worked
properly.

I am hosting my own live web server, SMTP server, DNS server. And they all
work, bth internally and externally.

I can come through to my own ewb sites, the DNS resolves from the DNS server
and everything is O.K. I can even telnet into my SMTP server, which then
successfully relays email to the Exchange server.

HOWEVER! And this is the big BUT!

I find ISA server publishing soooooo unreliable its untrue. I have installed
SP1 with all the other little tweeks, and I now find web publishing is
really good, ISA now successfully publishes on port 80 every time. How nice.
Unfortunately with no DNS server being published the web server is useless.

This seems to happen every time my ADSL internet connection is dropped by my
ISP (BT Connect). A web request comes in from a client machine, ISA server
auto-dials a connection is made and the following servers are published as
reported in Event Viewer:

The Web Proxy Srevice identified that the address xxx.xxx.xxx.xxx was added
to the interface table and start listening on port 80.

and

Registration with H323 Gatekeeper at address xxx.xxx.xxx.xxx:1719 succeeded.

But no DNS or Mail servers.

If I leave ISA up and running for a day or so, DNS (udp 53) and Mail (tcp
25) appear in the event log and start to publish - weird.

Whether I dial manually, or let ISA auto-dial seems to make a difference to
publishing.
If I dial the internet first before starting the ISA services seems to make
things more reliable.

However, ad here's the bit BUT!.

I just don't seem to be able to rely on ISA server to do its job properly.
Maybe for a day or so, but as soon an the Internet connection is lost and
re-established publishing rules go out the window, connections are lost,
services are down, web sites are inactive, Irate phone calls are made to me
comlpaining about why services are down, which makes me look useless at I.T.
and I can't ever take more that a few hours off work let alone go on
holiday.

Please HELP!!

I really don't think I've missed anything. I've even got NetMeeting, with
file sharing, and video working behind ISA.