Downloads from a specific server are extremely slow (~0.5Mb/s). For example:
https://www.fundmanagersoftware.com/images/DSC01265.jpg
is about an 8MB file and takes about 3 minutes to download to my PC. My Centurylink DSL is 40/5 (with static IP), and everything else is fine, including speedtest.net tests. The limitation is not with the server. This just started recently, and was intermittently working before, but now is always slow.
This file is on a web server (AWS instance in OR), which I run. The web server has plenty of available CPU, RAM, Bandwidth. I've used iperf and speedtest.net to verify the internet speed from the server to other locations is fast, but to my PC it is slow. My PC to other sites is normal too, so it is only this one specific path. Interestingly, the upload speed from my PC to the server is fast, it is only the download speed which is very slow. I've run a tracert from the server to my PC, but that doesn't show a problem (I don't think...). See the tracert here:
https://www.fundmanagersoftware.com/aws/tracert_awsor2pc.png
I ran iperf on the server and my PC, and it shows it being slow too:
https://www.fundmanagersoftware.com/aws/iperf_awsor2pc.png
(The top shows iperf at the AWS instance running between 0 and 1 Mb/s, but at my PC it is more constant at 0.5Mb/s. Is this some clue? Seems like some buffer may be getting quickly filled by the server, and slowly drained to me...)
I've asked my neighbor to download that image file, and it is almost instantaneous on their Cox cable. I suspect there is some intermediate node between that server and my PC that is having troubles. Any suggestions on what might be the problem??
Thanks,
Mark
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