Question

speedtest high but download really slow every night

Hi,

I recently moved to my girlfriend house and she has her own internet service (60 mbits/s) so I dropped mine. When I was going to her house before, we were getting some buffering when streaming stuff that worked fine at my place but didn't really make a big deal out of it since I wasn't there often. I just thought it was the wifi.

Now that I moved there, I realized that at night between 8 and 10 all downloads become reallllly slow suddenly (100-300 kB/s). Its the same from my phone over wifi, its the same on my computer on wifi and its the same from my computer with a wired connection. At first I thought it was the site I stream from even if its usually extremely fast but it isn't because I also tested a bunch of test files to download on different sites that are super fast outside of that time period (20-50 mbits/s) and I'm getting the same results for all (100-300 kB/s) and on top of that I also tried the same links that are super slowed down on my phone using my data plan and I'm getting even more than 50 mbits/s on all tests. So the sources are not the problem.

At that point I'm thinking that this is just a crap ISP and they are throttling my connection because all of those links are working fine on my data plan but what I don’t understand is that during that time period when all downloads become super slow, if I do a test speed on speedtest.net or on fast.com for instance I'm getting very good results (between 30 and 60 mbits/s). I also tried a very popular torrent and it was downloading fast. How can all my direct downloads be super slow but my speedtest be totally fine? is there something that I’m not getting? Can my ISP restrain my connection selectively like that?

Thanks!

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Or folk get home and use Netflix.

This sounds like the old Netflix issue where an ISP gets hammered during certain hours. I will not duplicate the web on this or how the ISP's pipe to the Internet gets maxed out.

And no, an ISP should never overprovision. This can royally upset the entitled among us.

Nothing seems wrong here. Same old story.

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follow up question

But if that was the case, when i would do a speed test on ookla or fast.com, shouldn't i see crappy speed?

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Due to how ISPs work or configure.

No. Most ISPs will not discuss their architecture and I won't do much other than write short one or two liners. If you feel your ISP is throttling you, you get to take it back to them.

Again, what you noted looks normal given the story. I omitted how Torrents can be detected and there are companies that then step in to poison or slow your torrent. This has nothing to do with the ISP. And again I defer to the web about that issue. It seems that there are folk that are surprised once they learn about this.

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Answer
also remember

when you do speedtest, it is usually testing the speed to and from a location that is close to you. addition if it is cable internet, speed can be slowed if there are a lot of users in the neighborhood using it at the same time.

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Answer
Netflix's fast.com

Have you tried Netflix's https://fast.com

They built it to get the true speed, in case the ISP's were doing things if it was specifically a speed test.

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