Off topic but I found these 2 sites to be helpful for configuring most routers correctly:http://www.simpleportforwarding.com/
Excellent free utility or checkout the Router Guides item.http://www.pcwintech.com/node/972http://www.portforward.com/
Click on the Router List
then select your router Belkin F5D8235-4
from the list then the app. and see if it helps with your issues.
Or go direct for the Apache server app here:http://www.portforward.com/english/routers/port_forwarding/Belkin/F5D8235-4/Apache.htm
When finished configuring your router you can check the results using their Port Checker Tool
BTW this is an XAMPP for Windows forum not a router configuration forum but I posted the above information so it may help others looking for information about configuring their own routers correctly.