Hi,
I use a Scientific Atlanta Webstar cable modem and I face a peculiar problem. I can't seem to get simultaneous connections going.
Let me explain. If I use a dial-up then lets say the first download goes at 5Kbps. If I start another download, then both the downloads split the available bandwidth. But this doesn't happen with my cable connection. If I open multiple downloads to multiple sites, only one download is active at a time. I face this problem with Windows 2000 as well as Linux (2.4.26). With IE, Firefox, rsync and all other sorts of data transfer applications.
As another example, I am right now uploading data from the laptop at home to my PC in the office. The uploads are at 5-7Kbps but I can't ssh into my laptop at home from office at all!! ssh waits for a while and then says connection timed out.
My connection is 64kbps Up and 128kbps down. I use the USB port to connect the modem to my laptop. I have also tweaked the TCP window size on Windows and Linux is supposed to take care of that automatically. The only theory I have is that somehow the USB ethernet interface isn't able to multiplex connections. Unfortunately, I don't have a regular ethernet interface on my laptop to verify that. I also checked with my ISP and they said they haven't done any capping on active connections or anything of the sort. So any help will be appreciated.
Thanks,
Siddhartha