Networking – Can’t connect to internet with laptops over wireless, but can with other devices

wireless-networking

My router is a Netgear N150 Wireless Router, model WPN824N. Right now on my home network I’m able to connect wirelessly and access the Internet with two iPads, a phone, and a PS3. I’m also able to connect with a PC that is wired in directly.

However, my laptop cannot seem to get full Internet access anymore. It detects the wireless network, connects to it, and has decent signal strength. I can even ping www.google.com. However, if I try to actually load a web page (such as www.google.com), the connection times out. This happens in Internet Explorer, Firefox, and Chrome. If I plug the laptop into the router directly—and thus not using the wireless connection—it works fine.

I chalked this up to my laptop’s wireless card getting flaky or something, since it used to work. Since I rarely use it, I just ignored the problem and stopped using the laptop to connect wirelessly. However, I recently brought home my work laptop, which has no trouble connecting to the wireless network at work. When I connected to my home network, everything seemed to work for about 2 minutes. I loaded Google and brought up email. Some time while drafting the email, it stopped working. Just like my other laptop, I’m still connected to the wireless network, can ping google, and otherwise appear as if I should be working. However, web pages simply won't load, and the network status occasionally flickers between telling me I have Internet access and no Internet access.

Through all this, my iPads, phone, and PS3 continue to work fine for web browsing or video streaming via Netflix.

What kinds of steps can I take to diagnose and solve a problem where laptops seem unable to get full Internet access?

Best Answer

Well, I don't like my solution, but I'd better post it since it actually solved the problem I'm having.

I had Enable WMM (Wi-Fi multimedia) settings on the router turned off because having it on had been causing speed issues with my iPad. The laptop, at least for a while, had worked fine with that disabled. Turning it back on, however, made both laptops work again. So, if someone else has this same issue, you might try making sure that you have WMM enabled to see if it fixes your problem.

The steps to check this for my router were:

  1. In a browser, go to 192.168.1.1. Log in with username/password for router.
  2. Go to the Advanced Wireless Settings
  3. Tick the Enable WMM (Wi-Fi multimedia) settings checkbox and hit Apply.

My router's help has this to say about WMM:

WMM (Wireless Multimedia) is a subset of the 802.11e standard. WMM allows wireless traffic to have a range of priorities, depending on the kind of data. Time-dependent information, like video or audio, will have a higher priority than normal traffic. For WMM to function correctly, wireless clients must also support WMM.

Why having that disabled would block the laptops entirely from web browsing is a mystery to me.

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