Jeff7
Lifer
- Jan 4, 2001
- 41,596
- 20
- 81
Or...it may also be a long-running bug that's somehow related to Windows 7 and network cards and lunar phases.During the testing your TCP window was very large and likely had a ton of packets coming your way without needing an acknoweldgement. This leads to packet loss/drops on egress from the modem termination system (coming into your modem) when you loaded the page with a UDP stream which is bad for video. It also caused TCP to close it's window some and resend which further compounds the problem until the TCP socket would eventually be closed.
What you experienced is the definition of congestion. It's how networks work.
If you nincompoops would let me use QoS and traffic policing/shaping this wouldn't be a problem for you.
Think of it as a series of tubes/pipes. Your pipe was full and you poured more water into it, that water mixed with the water destined for the pipe and water (packets) dumped onto the floor (dropped).
:hmm:
I happened to notice in the most recent slowdown that it was even slow-going to access my router. Also of note is that the slowdowns don't affect anything on my LAN, and my tablet doesn't seem to trigger these slowdowns.
Still kind of touch-and-go though. A fix attempt may seem to work for awhile, but then it's back to 56k-land.
Generally what I see happen with large file transfers is that my connection will max out at whatever rate I'm capped at. Usually 2+ transfers at the same time from a good server is enough to max out the connection. But I can still browse other sites, albeit a little slowly - not the complete dead-halt that streaming video would often cause. And streaming video is nowhere close to reaching that bandwidth cap
(I also just ran 6 windows of the speedtest as concurrently as I could. I got the usual large spike of speed, nearly 35% of my LAN's capacity, and then it plateaued at the capped speed.
9.33, 4.26, 1.03, 0.84, 3.90, 3.57 downstream. So I can manage some decent speeds with concurrent downloads.)
It's a series of tubes, and Windows is sitting on the toilet to provide the tubes with entertainment, when suddenly I try to stream video, and Windows spews forth a nightmarish eruption of terror that causes the sewage system to seal itself and go hide in a corner.
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