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:
Running out of ideas on what to try and so turning to the community for help. Thanks much in advance!
Thank you for sharing all these details.
Can you access the adapter settings and check the preferred band on this device? You can also try checking for the wireless mode configuration on the adapter.
Here you can access and get more information in how to check this:
in Device manger 6300>properties>Advanced
make sure 2.4+5.2 Ghz are set as auto
11n mode is enabled
Mixed mode= CTS to Self
the rest if the setting leave alone.
Right next to router I now get 300MB