Laptop can't connect to 2.4Ghz frequencies, only 5Ghz frequencies

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Soilydude

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Oct 23, 2014
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My Windows 8.1 laptop, fitted with an Intel Centrino Ultimate-N 6300 AGN wireless adapter, suddenly stopped automatically connecting to my router a few months ago. I attempted to connect wirelessly to multiple other routers, all to no avail. My laptop could only connect through an ethernet cable/tethered hotspot. I then moved houses and got the internet set up on a new provider and suddenly my laptop could connect wirelessly again! Sadly, after trying to connect to my university's wi-fi, I found out that the laptop wasn't fixed, it was simply able to connect to my new 5Ghz internet but still had trouble connecting to 2.4Ghz access points.

I've tried everything I can to fix this as my laptop is too vital to my studies for me to be without it even for a short period of time, therefore sending it off for diagnostic and repairs is out of the question for now. So far I have tried:

Installing the latest Windows 8.1 drivers for the card (currently on v.15.14.0.2)
Replacing the wireless card with a new one (same make and model)
A complete, fresh re-installation of Windows 8.1

Running out of ideas on what to try and so turning to the community for help. Even if you're not sure of a fix, determining the problem itself would also be a big help. Thanks much in advance!
 

TerryNet

Terry
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Mar 23, 2005
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80,602
Try the latest wireless driver from the laptop manufacturer's web site.

If that doesn't work then try the latest driver directly from Intel's site.
 

TerryNet

Terry
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80,602
I have no experience with dual range adapters. If there is some setting--maybe in the adapter Advanced Properties in Device Manager--to choose which range to use make sure it is set for 2.4 Ghz.
 

DaveBurnett

Account Closed
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Nov 11, 2002
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12,970
Is the 2.4Ghz range turned on in your adapter.

Try using InSSIDer to find out what it sees.
Or Xirrus WIFI Inspector
 
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