I don't think so. The problem you described is usually a problem with the config of your computer. The first step to solve it would be to disable both firewalls and check whether the problem persists (if you still don't pass the connection test). If it does, the problem comes certainly from your router.
Now, in order to get the problem finally solved, the following things need to be checked:
1) Does your computer have a static IP (this can be done
via the properties of your LAN connection or via your router/modem (if supported))
2) I suppose you're using Comodo, as it's better than the Win Firewall. Have a look
over here whether it is configured correctly.
3) The third thing to check is your router. Maybe there has been an internal reset etc. (...) ? To set it up correctly, check this:
PortForward.com - Port Forwarding for Shareaza
Note that you should also check your routers security log. Some routers might identify Shareazas UDP traffic as an DDoS attac on the home network they are connected to
In order to make sure this is not the case, check your routers security log after Shareaza has at least run 2 hours in Hub mode (= much connections). If the security log shows entries similar to "UDP flood" etc., you might want to correct the security settings...
mfg,
Old