After searching the FSHost forum for a solution to my port problem, I found this:

http://www.portforward.com/english/routers/port_forwarding/routerindex.htm

Do EXACTLY as they say without missing ANYTHING, and you should have everything set up correctly.

-Scroll down the page and find your router and click on the name.

-Skip the advertisment page

-scroll down and select Flight Simulator 2004

-next click on the Static IP Address guide and complete it exactly as it says to do!
Direct link: http://www.portforward.com/networking/staticip.htm
(Not all systems will work with this setup, that's OK, set everything back to default like it says, and then move on to the next step)

-follow the step by step instructions for EACH port listed. Where it tells you to enter 2302, make it 2300 instead.

Your router's firewall should look like this when you are done:
(differing router's will have differing pages, but the open ports will be the same, regardless of design or maker)




-Now, You must
    -either open all of these ports manually in your windows/other firewall,
    - or disable your firewall before flying online.

To Open Windows Firewall Ports in XP:
Go to- Start Menu / Control Panel / Windows Firewall ,and click the Exceptions tab.









now click the 'Add Port...' tab








Now enter a name for the port, I find that fs#### works, as I know it's a flight sim port, and the number is the same as the port, helping to keep track of where you are when opening 101 ports. 

Now enter the port number, and select UDP, and click OK.
You have just opened a port on the firewall.

Start with 2300, and continue repeating this process until you get to port 2400.





When you are done, you should have 101 entries for ports 2300-2400, and if you've already tried or have been online using the FShost server program, you should also have these entries listed:




If you don't see these entries, open the following ports in your firewall, in the exact same manner as you did above.

UDP 23456 
UDP 6073
UDP 23432
TCP 47624
TCP 80




Found the info here: http://www.chocolatesoftware.com/forum/index.php?topic=737.0

My system now passes the Chocolatesoftware port tester, and the Port Forward port tester.

It's A LOT easier than you think.



-IF you use the windows firewall, be aware that you must set ALL 101 ports to open individually with 2300-2400. Otherwise you will have 99 closed ports if you just open 2300 & 2400.

-Disabling the windows firewall automatically opens all of these ports. Do so only if you know what you are doing.



This is a complete list of all ports that will be tested and  need to be open:






I verified this on two different testers, so unless you can get yours and FSPorttest to say everything is OK, I wouldn't trust it yet. I've never been able to get it to say that I'm good, and now I can.