If you've establish that your download speed is great, simply your upload speed is abysmal, I've got a possible solution for yous. I struggled with this event for a while and decided to write downwardly my findings in a blog post in case I, or anyone else, runs into this in the time to come.

In fact, this is the second such blog post I'm writing: a couple years ago, I hit the the inverse outcome and documented the solution in a blog postal service chosen Got slow download but fast upload speeds over wireless? Here's a fix. That post has had several hundred thousand views and helped many people (bank check out the comments—I even got a union proposal), so I'one thousand hoping this postal service will be useful too!

Here'due south your tldr: upgrade your router's firmware.

Symptoms

I noticed that on all my devices - a Macbook Pro, iPhone, Windows desktop - webpages were sometimes taking a long time to load; it was a bit intermittent, but everything from google maps to gmail suddenly got very sluggish. I have ane of their college tier Internet plans from Comcast, and so this was pretty disappointing.

I ran a bandwidth test on http://www.speedtest.cyberspace/ and the results were roughly the same beyond all of my devices:

Slow upload speed

At 57 Mb/s, the download speed was groovy; however, the upload speed was a mere 0.17 Mb/south, which is pretty much unusable. In fact, I had to re-run the test several times, as occasionally, the upload portion of the test would become stuck and never complete.

The solution

I tried rebooting the router, the cablevision modem, tweaking a bunch of settings, only nix helped. I also checked with Comcast to ensure in that location were no bug our outages in my area, and of course, everything was fine.

Finally, I stumbled upon the solution: a firmware upgrade. My router, a Cisco/Linksys E1200, was using firmware version two.0.02. I went over to Linksys' support page, found my router, and saw that a newer version, two.0.06, was available. Hither's a snippet from the release notes:

            Product:          Linksys E1200, Wireless-N Router Classification:   Firmware Release History ____________________________________________________________________   Firmware 2.0.06 (build 6) - Minor cosmetic browser-based GUI update. - Various pocket-sized problems fixes.   Firmware 2.0.05 (build 2) - Enhanced WAN-to-LAN performance when Internet connection type is prepare to PPPoE.   Firmware 2.0.04 (build 1) - Resolved issue with decrease in download speed when WMM is enabled. - Resolved consequence with decrease in upload speed when QoS is enabled. - Increase throughput performance when parental control is not enabled. - Resolved effect with incorrectly handle RTSP under certain circumstances. - Resolved PPPoE connection result with a few ISPs.   Firmware 2.0.03 (build 10) - Added dual-stack lite (DS-lite) back up. - Allow native IPv6 and 6rd back up to be enabled simultaneously. - Implemented Wi-Fi Protected Setup lock-down mechanism to forbid fauna forcefulness attack. - Resolved outcome with not being able to admission the browser-based GUI via HTTPS when newer versions of Internet Explorer or Firefox is used. - Added Danish support in the browser-based GUI.

The notes for version ii.0.04 are especially interesting, as they fix bugs with WMM (which was the crusade of problems in my previous blog post), QoS, and more than.

I figured it was worth a shot, downloaded the 2.0.06 firmware, and installed it through my router's admin UI. The instructions for upgrading the firmware volition not exist the same for all routers, but hither's roughly what you demand to do:

  1. Go to [http://192.168.1.1](http://192.168.1.one/) and login to your router. If you've never done this, look for instructions that came with your router or do a google search to find the default username and password.
  2. Click on "administration".
  3. Click on "firmware upgrade".
  4. Yous should see a folio like this:
    Upgrade firmware page
  5. Click "Cull File" and select the firmware file you downloaded.
  6. Click "Showtime Upgrade". DO NOT unplug your router or click anything else in the meantime; permit the upgrade complete!
  7. Wait a minute or so for your router to reboot.

The results

After the router restarted, I re-ran my speed test, and the results were much nicer:

Fast upload speed

The download speed is still a zippy 57 Mb/s, but now the upload speed is fast too, at eleven Mb/s, or nigh 70x faster than what information technology was earlier. Woohoo!

I hope yous found the post helpful. If your router has a different firmware upgrade process, leave a annotate with the steps you followed so others tin find it. Happy spider web browsing!