Comodo brings its own firewall, doesn't it? If yes, you can just disable the M$ firewall as it is useless and can cause problems when used together with other firewalls...

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I use only Comodo's firewall. I enabled the inbuilt MS firewall AFTER I had uninstalled Comodo,before did a clean install of Comodo.

The free Comodo firewall comes with Agnitum antivirus,which I chose not to install,as I use Avast.

I should mention that this current problem is recent. I've been using Shareaza for a couple of years using this router. (took me half a day to set up the port forwarding initially)

Because the issue persists with both Comodo and MS firewalls it's beginning to look as if the problem is with Shareaza.

What do you think?

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

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Thanks mate,I appreciate the trouble you've taken.

I set up a static IP and port forward over a year ago,and rechecked the settings only yesterday.

I now think the problem may have been a compatibility issue between my router and Comodo Firewall.--I uninstalled Comodo,and installed Zone Alarm,according to the instructions. Shareaza is now working perfectly.----I've connected,disconnected,turned of and on and rebooted the PC and the router,twice now..--I could get the connection to work with Comodo if I rebooted the router (?)

I will of course keep your reply for future reference.

Thanks again