Tomcat 4 rejecting connection

Hi,
    We have an existing application which was running on Tomcat 3.2.4. We
have upgraded to Tomcat4. However, now we are getting "Connection refused"
exceptions from Tomcat after sometime. Ours is a  collaborative application
which basically uses applet-servlet communication. and there are 2 more
servers running on webserver machine. The servlet communicates with those
servers using RMI and returns the response. Application code is same in both
cases. We are using Tomcat standalone (not with Apache/IIS.. I know we
should).
Here is what I have tried..
1. Tomcat 4.0.6 (latest production release with 4.0 series). I tried with
HttpConnector and default setting. I get the connection exception just after
2 clients join and attempt some activity in applet. With CoyoteConnector and
default setting, I get the exception but not as quick as in first case.
2. Tomcat 4.1.24 (latest stable release) I tried with CoyoteConnector with
default setting. I get the exception after lot of time like.. 6-7 clients
working for around half hour or so. However, the user can reconnect to the
server without any problem.
My questions..
1. Why is Tomcat4 rejecting the connection so quickly, when earlier tomcat
didn't give any problem.? Has anyone faced similar issue with Tomcat4.
2. Am I missing something in configuration? I have just changed default port
to "80" and added 2 webapps.
3. How is CoyoteConnector different from legacy HttpConnector? I couldn't
find an explanation on this.

I have spent 2 days on this problem searching on the internet.
Any help or pointer is highly appreciated.
Thanks in advance,


-Sourabh Kulkarni
[email protected]

Marya Mannes-
Borders are scratched across the hearts of men
By strangers with a calm, judicial pen,
And when the borders bleed we watch with dread
The lines of ink across the map turn red.

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