I am using KTorrent but my download rate is appr. 9-10 KB/s and there is an icon in the lower left corner that says 'No incoming connections (possibly firewalled)'.
I've been reading about iptables but am not sure if that is actually the problem or what to do to increase the download rate.
Any help is greatly appreciated.
Do you have a firewall enabled? If so, you may need to open the ports that are used by Ktorrents. If you are using a router, you need to forward the ports that are used by ktorrent to your computer.