I have a big problem with uploading files. When I try to upload a file, only the first few kilobytes (sometimes 20KB and sometimes only 2KB) are transferred, after that the upload speed decreases down to zero and the upload process never comes to an end (no error messages are given). The behavior is the same with:
1. Sending emails with an attachment from my mail client (Mozilla).
2. Trying to upload a file to an other computer (a Windows machine) with samba within my local network
3. Trying to upload a file with ftp to my homepage (regardless whether I use ftp in the shell or Konqueror).
Uploading works on websites which support file-uploading with the browser (like a web interface for email or a forum with file upload). But the upload speed is very slow, around 10KB/s.
Other user in my local network can download files from my PC, but again only with no more than 10KB/s (our local network supports 100MBit/s).
Downloading works without any problem.
I am using Debian/testing with the kernel 2.4.25-1.
With Knoppix, I can upload files as fast as expected.
I even do not know which program is responsible for this behavior.
Please help me to configure my system so that file upload is usable again.