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When I go to speedtest.net it says I have 2.44mbps (thats my true speed), but when I download something, it goes down to 10kbps! What on earth is happenin'?!? :o

Could be all sorts of things.

Who's your ISP? How are you downloading (torrent, web browser download, through some download manager)? Do you use proxies? Are you running any programs which consume a significant amount of bandwidth while downloading (web browsing, Bitcoin client, Skype)? What was the latency of the connection, as measured by speedtest?

Traffic shaping (http://en.wikipedia.org/wiki/Traffic_shaping)?

You got throttled by your ISP. Try using vpn or tor, and you'll get your max speed.

I can't find anything suggesting CL throttles or otherwise shapes certain traffic. Should probably contact their support if you're confident you aren't using the bandwidth elsewhere. (if you only have one PC on network, you can double-check by downloading something like NetLimiter -- the free version will still show how much bandwidth each application is sucking down)

Maybe a VPN but not Tor.  ;)

OP, I doubled my download speed from 5 to 10Mbps (max for my plan) by disabling the QoS in my router.

You can test for TS here: http://broadband.mpi-sws.org/transparency/bttest.php

Couldn't find CenturyLink here: http://wiki.vuze.com/w/Bad_ISPs#United_States_of_America

Tests made here: http://broadband.mpi-sws.org/transparency/results/ didn't find any TS.

Your problems reside elsewhere, could it be on the other end?

http://www.speedtest.net/result/3000863959.png

Oh, how I love fibreglass. :)

That upload is dman great!

In my country upload is always around 1/10 download...

Dont you mean fibre optic? Fibreglass is something different! But damn thats pretty good!

I have around 2 MB/s (not mb/s) and it's always been good for me.

Yeah that's what I meant. Sorry, it was ~3:30 AM here hehe.

What are you downloading and where? Most of the website are capping download limit to free users.

I envy your upload speed.  >:(

https://i.imgur.com/mflaz3C.jpg

My Internet speed test results are,
Download Speed: 18.89 Mbps
Upload Speed:0.795 Mbps.
I check my internet speed from ScanMySpeed.com (http://www.scanmyspeed.com/)
What you think about this speed?
Is this good or bad?

You're probably downloading from a server with a poor upload speed.

What my ISP claims: 30Mbps/30Mbps
What I really get: 9Mbps/0.5Mbps

Most things are actually faster with a VPN though, which makes me pretty goddamn suspicious of throttling/etc.
Why can't there be a decent ISP like Charter where I live? ;_;

10 kbps is very very slow how much do you pay per month ?

Well my Download speed is 90Mbps but I download 10Mbps from Torrents it was always like that.

I get about 4-5 when rarely but mostly under 1 mb  :-X

Oh. Dunno why I didn't initially think of this. Some ISPs have per-connection QoS limits (so you may have a 2mbps connection, but for each connection you make, you're only permitted maybe 500kbps). 10kbps would be stupid, but I guess it's possible.

Try a download accelerator like Download Accelerator Plus (riddled with adware... maybe there's a better recommendation) which will force extra connections to download the file in parallel and get around the possible restriction.

yeap seriously very slow i have good speed with 512kb/sec i thinks its compulsory speed :) hope you change your connection :P