Pgoodwin1

By the way, you live in a beautiful area

There must be some criteria for a minimum number of data points before it auto-sizes. I just tried 256 K manual and it upsized to auto. When I put in 50 M in, it stayed at 50.

Make sure the provider guaranteed speed doesn't say "up to XXMbps"

@CA3LE I think that would be useful too.

If you go to your Results page (see Results link near top of the home page), right under the plot, there are so buttons to select Avg Max for instance:

Keep calling them about the problem. Be polite, but be persistent.

I had a problem similar to this once and it turned out to be an intermittently bad router. I got similar high and low speeds during each test. Over a period of a month it was about the same - widely varying speeds. After that it got progressively worse, then the unit finally stopped working. There are a lot of possibilities for what the problem is. Try plugging an Ethernet cable directly from your computer to your modem. If the results are consistently good, then your problem is between the modem and your computer..

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I'm not sure what the difference in the test servers are for your data. Some are the star DK and some are the flag DK.

Keep calling them. Be polite.

Call your ISP and tell them about this. Call when it's slow. If they say there's nothing wrong, at least you get it on record that you are having trouble during parts of the day. If enough people call with a similar problem, they will probably do something. Be polite, but keep calling them.

It looks like you are using Multithreaded testing. Disable Multithread and choose the nearest test server to you. to disable Multithread, use the link at the top right of the home page. https://testmy.net/multithread Choose a test server using the link at the top right - next to the Multithread link. https://testmy.net/mirror test a few times and post the results here.

That would make it impossible. I don't have an answer for you. The site operator will see this before too long.

Why impossible?

I hope they don't change things here

@DESB. What TWC are you using? My TWC Cincinnati doesn't seem to be any different than it was months ago.

I'm not sure it's throttled down or not. I just tested from Cincinnati, OH USA where I typically get about 50-60 Mbps down and 5.7 up depending on time of day when testing to the New York server. i ran some tests to the Singapore and Bangalore servers and got 10-20 Mbps down and 2.5-4.5 up at 10:15 AM on a Sunday morning (not a really busy time on the internet). So I was about 1/6 to 1/3 or so of my max when going that distance. You got about 1/5, so I'd say that's probably about what to expect going that far.

What TestMy.net test server are you trying to connect to? Link is in upper right of home page.

What are your speed measured here on TestMy?

Keep calling them. It's a pain yes, but eventually you (and probably others) will get the issue recognized at Comcast. Be polite and friendly (hard to do when frustrated). After the second call, ask to speak to a supervisor. They'll eventually do something. If it is a neighborhood issue, then surely others will be complaining. If it's not, then eventually they send a tech out that has the experience and savvy to solve the problem

Flatlining fast today. Three test in rapid succession, all just about like this on a 50/5 TWC plan, using an iPad Air 2.

When I had a router that was bad (intermittent), SpeedTest never reported the erratic results. During the tests, you could see that the speed plot had big variances in it, but when the end of test results came up, the speed was right at my plan max. Not so here at TestMy. Them dropping out the lowest 30% of the data points was giving me the wrong numbers. The router was a piece of my equipment and TestMy helped identify that there really was a problem. The router finally really died.

Your ISP may tell you they can't do anything about it when you call. Be polite and persistent if your issue doesn't go away. After a couple of calls on a similar issue, my issue like this suddenly went away without them telling me they were doing anything about it. It could have been something they did, but it could have been someone else in the chain.

I'm 630 miles from my closest test server. I can still get the max speeds of my plan though.

You could give that info to your ISP. It's possible that they have some way to route you differently than what it's doing now. with good routing, you might sustain > 75% of your plan max. Maybe a little higher. My experience has been about 80% to the west coast from Cincinnati.