azures: NAT OK, no msg in error logs, but no download!
 

I have been trying to download torrents with azuerus 2.5 on fc7, but there is never any network i/o.

I am using libgcj java that came with the distro. I have properly opened the tcp/udp ports in the firewall and on my router - that is not the issue. Also, the azureus log files in ~/.azureus do not seem to be telling me anything of interest.

None-the-less, files are not downloading or uploading! Are there any more tests/diagnostics I can do? What could be causing this?

Two things you could check:
- are you sure that the ports are really open? I thought I had correctly set up the firewall in Fedora but I found out that my settings got deleted every time I closed the configuration box. I was able t to solve it by clicking the buttons in a different order.
- are you sure that your ISP isn't blocking the port in question? Many ISPs do so in order to prevent illegal sharing. Downloading was excruciatingly slow on my computer until I picked a port in the 50000s.

jay -

thanks for the reply. unfortunately, everything was working with azureus 2.0 in fc6 using the same port, so i know its open on my side and the isp side. this whole thing is quite bizarre. maybe i should just go back to azureus 2. also, i haven't tried any other torrent client... that might be good troubleshooting. i'll do that.

I have to say that I haven't had any issues with Azureus so far but then I use the Sun jdk rather than libgcj. That could well make a difference. By the way, don't you get any error messages if you launch Azureus from the command line?

I had the same problem with running Azureus (2.5) NAT was OK, port forward was working yet download was painfully slow and upload was nonexistent (if working at all.)

Solution:
Download and Install Sun JRE.
ensure Sun JRE is default Java. In my case this needed a bashrc path entry as JRE installed in the firefox download directory. before this the install was undetected.

after "java -version" confirmed Sun java as the default java I ran Azureus again and it worked perfectly - download speed of a torrent went from being ~20k/s using Fedora java to ~ 450k/s using Sun Java. Looks like Sun JRE is required for correct operation of Azureus