E1200 very slow wireless

[namus]

Yes tech support is completely useless. Try ask you a million questions and place you on hold. Did not get anything accomplished. Which concluded that I should search for my own solutions.

[TGFitch]

Same for me. Wired was 25 MBps, Wireless was under 1 on Mixed. Changed to "G" and getting 13+ MBPS on Wireless. Suffered for about a month before finding this thread. Pretty lame.

[hillary681]

looks like you have a G adapter. you're getting a better connection with network mode set to "G" only since the receiver is a wireless g device (your wireless adapter). you'd always have to consider the wireless adapter when connecting to the network. it is even recommended to do a driver update to help resolve connection issues.

[evanmoran]

The solution for me was to remove WPA2 security and use WPA. Hope that works for you..

[sillygirl]

Disabling WMM worked for me, too, and I also have Comcast.

Strangely enough, I have and old XP laptop, 2 rooms away, that got 5M + download speed when my W7 laptop was getting less than 1.  Now W7 is getting 13, and I can live with that.

[hayhay]

Your post was a blessing.

I regsitered on this website just to say this, Thank You!

It feels incredible to get fast internet, and I don't think I could've gotten there without you. 

Really appreciate that you found the time to write this out and help people like me out of troubled times.

[Leedar]

Like others here, I logged on just to say Thank You!

Like others as well, I struggled to get my Linksys E1200 v2 to work with Comcast (Triple Play IP Phone with ARRIS TM722 non-wireless modem) after switching off their provided Netgear WNR1000.  I was looking for faster speeds and to take advantage of the fast N speeds (the Netgear already provided N, but we weren't using it).

In conversations with Comcast Tech Support, they said the problem was the router and they offered to help if I payed for support.  I declined.  I was only getting 0.5 D/L with the Linksys.  The Netgear provided 20-48 D/L.

Through the support of others here, I've been able to adjust my settings to get fairly consistent 23M-26M D/L as opposed to 18M-21M D/L.

Those settings are,

SETUP
Basic Setup

    * Internet Connection Type: Automatic Configuration - DHCP

            (if I'm not mistaken, this is default, but listed it as I'm led to believe this is an important setting for wireless modems, gateways, non-IP phone, and business customers)

    * MTU: Manual 1500

            (don't think it makes a differenced but listed it anyways)

Advanced Routing

    * NAT: Enabled

             (can't remember if this was Enabled as default or not, but listed here)

WIRELESS
Basic Wireless Settings:
    * Network Mode: Wireless B/G Only

         (G Only reduced my speeds ~5M)
         (N Only didn't connect my N internal capable W7 laptop, but did with my Droid Charge.  Will need to troubleshoot N to get the faster speeds)

Wireless Security:
    * Security Mode: WPA2 Personal
          (WPA2/WPA Mixed Mode seems to work well too w/o speed lose, but chose WPA2 Personal as it's required for N)
APPLICATIONS & GAMING

QoS:
    * WMM Support: Disabled

           (This seemed to be the "Holy Grail".  THE KEY to fixing the slow speeds.  CHANGE THIS SETTING FIRST)

Now the remaining grip.

The Netgear WNR1000 (N150) gave between 18M-48M D/L yet through 5 various points in the house, it's measured signal strength seems to be less and more inconsistent.

The Linksys E1200 v2 now gives 22-26M D/L.  In the same 5 points in the house, the signal is stronger and more stable.

Connecting directly to the Linksys E1200 v2 with a LAN cable, I get 6M-65M D/L.  Usually 60-65M D/L.

Unfortunately, with the Linksys E1200 v2, with the configuration I have above, on the W7(32bit) DELL Latitude E6520 (internal Intel Centrino Ultimate-N 6300 AGN wireless adapter), I can only get ~26M D/L.

Speed improvements with comcast with a Linksys E1200 should have it's own thread.  I will create one if I don't find one here already, and if I have the time to.

Thanks again for everybody's contributions and help!

[Strider Nemesis]

If you're expecting to get speeds above 25 Mbps with your wireless connection, you shouldn't disable WMM. Instead, upgrade your firmware to 2.0.04 (WMM issues are supposedly fixed), reset the router via the reset button, and leave WMM enabled.

Wireless-G cannot perform over ~25 Mbps in real life, which is what you're getting. The reason why you couldn't connect to your router with the Wireless-N Only Mode is because your laptop's Wireless-N adapter complies with the Wireless-N specification, which mentions that if WMM is disabled, the adapter should only connect at Wireless-G speeds; since you disabled Wireless-G then your laptop couldn't connect at all. Your Droid's adapter, on the other hand, doesn't strictly follow the specification, which is rather common.

So, in other words, if you disable WMM, you're forcing adapters that strictly follow the Wireless-N specification to connect at Wireless-G speeds only, which is why you can only get ~25 Mbps from your Centrino card. Just update your firmware (don't forget to press the reset button) and enable WMM, and you'll get much better speeds through Wireless-N. Also, note that some of those Centrino adapters have the 40 Mhz mode disabled by default. You'll need to go into the device's properties and change the 20Mhz Only mode to "Auto", if you want to get 300 Mbps (theorical) speeds.

[Leedar]

Thank you Strider Nemesis!

Being used to using Netgear for years where it automatically checks for firmware updates each time you access it, I didn't manually check for one on the Linksys.  This fixed the problem.

I doublechecked my Centrino card, but fortunately I did already make the selections that you suggested.

Now my settings are set to mixed with WMM enabled and I'm connecting at Wireless-N with 60M+ D/L as I was expecting.  Thank you very much!

[alb71878]

I upgraded my old router to a Linksys E1200 about 2 months ago. Like others with Comcast, I now have a lot slower internet speeds. I've updated everything, disabled WMM, and used the suggestions in the thread on the settings. I'm still getting slow speeds. My download speed is 3.12, which is not that bad for me. However, my upload is just below 1. Any suggestions, or should I get a new router? Never had these problems before.