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I'm using a TP-LINK TL-WN781ND Wireless N card with an AR9285 chipset and an ath9k driver on Xubuntu 12.04.1 with Network manager.

iwconfig wlan1 shows that it's using a bit-rate of 54 Mb/s. Is there a way (e.g. through an 'options' entry in /etc/modprobe.d/ath9k.conf) of forcing it to use mode N? My router is doing 'Mode B/G/N Mixed'.

Ron
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Graham
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1 Answers1

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It's possible your signal quality is too low to support 11n communications. 11g has less throughput but more reliability than 11n. If you were really far out of range, your machine would switch to 11b. I have had machines that do this and I love it. I'd rather have slow network than no network.

To fix, I'd get an external antenna for your router, one with some gain to it. These can be had cheaply from various online retailers, including Amazon.

Daniel
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