I've only joined to say thanks for the info on changing the ports. Living in China, I have had a low ID for almost two years. One film took five months to download!!!! I'm really not joking. China blocks loads of sites, many of them utterly innocent.
So today I had the bright idea of checking your forum (der) and solved the problem immediately by changing the port numbers.
THANKS THANKS THANKS THANKS THANKS THANKS THANKS THANKS THANKS THANKS
[*]
Internet Service Provider is blocking eMule's ports
Problem: A rising amount of ISP's are beginning to block known ports for p2p applications. When a port is blocked no traffic can go through that port and you will be stuck with a Low ID.
Solution: You can change the ports eMule uses in eMule's preferences -> Connection to something else between 1056 and 65535. Try different ports and try choosing a port not already used for something. If your ISP is blocking ports you might want to think about getting another ISP if possible.