I am purely guessing you're using LW right? If yes, then see
Downld/Upld Problems Sticky There is a small chance your problem is due to a non configured firewall/anti-virus program or old inefficient router. I don't know how you found your way to this forum section but it is not the correct one to post in (General Gnutella / Gnutella Network Discussion) & for that reason I'll move your thread. If you use LW's help>forums or LW site>Forum then you end up in the LW section here:
Limewire Forum sections So again, I don't know how you thought your post was appropriate for this section. Please read
Forum Rules (click here)
If you're not using LW then please specify. This forum caters for many gnutella programs & such a question is best posted in the particular gnutella program client section of the forums.