Internet Speeds Inconsistent With Your Plan? Read This!

Chances are you reached this article because you’re concerned whether or not your Internet connection is really as fast as your service provider said it would be. There’s a lot of controversy going around about this, usually in the form of people who believe they may have been cheated by the company. While this might be the case, it never hurts to examine the most common causes of slower-than-advertised Internet speeds and determine whether one of these is happening to you so that you can determine how to remedy the situation.

1: Hardware Is Slowing You Down


More than likely you’re probably using a router right now that you’ve possessed for a very long time. As routers age, they no longer correspond to the speeds that your service provider gives you. When the processor inside the router starts overheating, speeds get drastically slower. You’ll know this is happening to you if you get fast speeds after turning the router off for a few hours. But sometimes routers simply start failing without any other symptoms except a consistent slow speed. Call your ISP for a new router if they provided you with the one you have. If you can find a spare router, test your speed on it. Perhaps it’s time you considered getting new network hardware.

I, for one, use my computer as the primary router in my household. This is not possible in cases in which you have a DSL connection. It’s only available for people who use fiber-optic high-speed connections.

2: Congestion At Your Local ISP Router Hurts Your Speed

Your Internet service provider (ISP) has several routers set up along different neighborhoods. Your local router is shared with all of your neighbors. If too many of you are trying to download at high speeds all at the same time, you may experience slight cuts to your line’s performance. This is natural, and simply demonstrates that your ISP doesn’t have enough local routers to competently route all of your signals. In this case, you either gather up your neighbors and get them to join you in petitioning the company, or you simply switch over to an ISP that fewer people in your neighborhood are using. However, take note that problems probably aren’t just local.

3: The ISP Infrastructure Is Taking A Heavy Load, For Now


Depending on the time of day, your ISP may or may not be at full capacity. Each ISP has its own infrastructure. Sometimes this infrastructure gets overloaded with massive amounts of traffic. This is why ISPs perform so well in their humble beginnings and start to really drag in speed as they grow. Although signals are sent at the speed of light, they need to be queued, processed, and routed to their proper destinations. Depending on what region of the world you live in, the ISP may have trouble upgrading infrastructure because of government bureaucracy that gets in the way. This isn’t necessarily their fault. It’s just politics and money.

4: Throttling Pulled The Trigger On You


ISPs have been known to throttle people who use certain protocols and networks (particularly those on BitTorrent and other peer-to-peer networks). If you think you’re a victim of throttling, run a speed test first. If the speed on your line is ridiculously higher than your download speed, you’re probably being throttled. Keep in mind that there’s a difference between megabits per second and megabytes per second (1 mbyte = 8 mbits).

But there’s still one more problem related to this…

5: Your ISP Gives You Higher Speeds For National Downloads

Where I live there are many ISPs that offer 100 Mbit per second download speeds. Incredible, right? The problem is that this speed is the national speed. In other words, I would download at 100 Mbps only from someone in my own country. For downloads originating outside the country, ISPs may offer anywhere from 5 to 20 Mbps. That’s not nearly as much. To test this, go back to the speed test site I linked you to in the last section. Instead of selecting their recommendation, which is local, hop outside your country and select another one. This will test the efficacy of your line outside your local borders. If you see a drop in speed, this is most certainly your problem.

Thankfully, my ISP stopped throttling exterior downloads and uploads, giving me 100 Mbps uplink/downlink speeds everywhere. It’s a bit more expensive, but worth it!


Trust me. I’ve had a ton of frustrations over the years trying to figure out why my lines or the lines of my friends would drop in speed so suddenly. These usually were the reasons, and the solutions I proposed have been very helpful. If you have any other ideas, feel free to let ’em out in the comments section below!

Miguel Leiva-Gomez Miguel Leiva-Gomez

Miguel has been a business growth and technology expert for more than a decade and has written software for even longer. From his little castle in Romania, he presents cold and analytical perspectives to things that affect the tech world.


  1. Good, but then what do you do when you _are_ being kept at speeds lower than advertised for none of these reasons?

    1. ISP infrastructures in the US, Central and Western Eruope are inferior to those in Eastern and Northern Europe particularly because of regulation on the telecommunications industry. The expanse factor in the US makes things even more difficult, since they’re still relying largely on copper. I’m pretty sure that infrastructure is to blame for a lot of slow-downs.

  2. It’s either that, or your ISP is being completely dishonest; a practice which I consider bad for business, since they’ll lose clients that way. Can you produce more details about the drops in speed you’re talking about?

  3. A lot of us in our area have had problems during heatwaves as well where our speed was either non existent or down to a crawl. One technician told us that the hardware at their trunklines is overheating and causing lots of problems with their network. Have you heard of things like this occurring?

  4. Please clarify – are my additional comments in parenthesis correct or do I have this reversed? which speed is which?

    If the speed on your line (from speedtest) is ridiculously higher than your (advertised) download speed, you’re probably being throttled.

  5. My story I will help 90% of those with this problem

    I have TW internet – advertised at 10-15 Mbps. For a long time was getting speeds as avertised – consistantly. Then it really started crapping out down to 4…3…even TWO Mbps. I tried all the usual mechanical fixes – recycling both the modem and router, using every system scanner/repair software, you name it. Finally I called the maker of my router – I have a fairly new Medialink router that is one of the top selling and rated on Amazon. Withing two minutes my problem was solved – my router’s channel bandwith was set for 20/40 – the tech person had me change that to 20 only, and ta-da! – I IMMEDIATELY jumped back up to a wonderful 15+ Mbps on my speedtests.

    Before going nuts with your provider, ALWAYS check your router

    1. If you can, get an extra long ethernet cable, so you can stash the router as far away from your cable/dsl modem as possible – this eliminates field interference.

    2. Make sure all of your settings are good – it does not hurt to call tech help to make sure it is set up properly for your needs.

    3. And as above, an old router is OLD.

    This should take care of 90% of slow internet problems

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