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Posts: 2
Registered: ‎03-31-2020

Dell Inspiron 5566 laptop not connecting to 5ghz WiFi network

Hello everyone. I have probably the most weird of situations. Here is what happened:

 

I've been having connection issues with my Smart TV, so I attempted to connect the tv via Ethernet cable to my router. Well, it was a failure, and after unplugging and re-plugging the router a handful of times, it had somehow reset to default settings. Until a couple of hours ago, I was able to connect to my 5GHz WiFi network just fine, now I can only connect to my 2.4GHz WiFi network, the 5GHz is not showing at all on the list of networks on my laptop. I have no idea how that happened, and I am able to connect to the 5GHz on my phone just fine. Any assistance will help. Thanks in advance. 

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Emerging Expert
Posts: 7,220
Registered: ‎02-25-2013

Re: Dell Inspiron 5566 laptop not connecting to 5ghz WiFi network

You might want to try a hard reset of your router and simply rebuild your network.  I have had to do that a couple of times.

However, that should not have happened in the first place so there could be something wrong with your router. 

 

Before doing that cycle your modem as well.  The proper steps would be to unplug the modem and router from power.  Wait a minute or two and plug the modem back in.   When it is fully lit up plug the router back in.

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Re: Dell Inspiron 5566 laptop not connecting to 5ghz WiFi network

Hey, MoonRabbit20! 

 

What a strange issue! bobberuchi had some great advice. It's amazing how many issues can be fixed with a simple power cycle. 

 

If you're still having difficulties, connecting with us via phone at (800) Geek Squad OR (800) 433-5778 or via our Remote Support Chat may be best suited to assist. 

 

If you have any additional questions, please let us know! 

 

Austin|Social Media Specialist | Best Buy® Corporate
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Registered: ‎04-04-2020

Re: Dell Inspiron 5566 laptop not connecting to 5ghz WiFi network

I have the exact same issue with my Dell Inspiron 5566.  Mine started last night when I lost internet access for 10-15 minutes.  When my internet provider finally reconnected service I no longer had access to 5ghz, only 2ghz.  Same thing with me, 5ghz no longer shows in my wifi adapter. I called Spectrum and they claim that there was nothing they could have done to cause this issue and advised it was my modem/router combo.  VERY strange you and I have the exact same issue just days apart. 

 

NOTE:  Strange is how the 2.4ghz is NOW so weak, compared to what it use to be, I can barely connect even though my modem/router is less than 10 feet from my laptop.  It also barely works with my ROKU, it says the strength is "poor".  And at times I can not connect at all or it disconnects after a few minutes. 

 

 

I was able, however, to tether my cell phone to my computer using a USB cord.  Since my phone still gets 5ghz from my modem/router I'm able to use my phone to access the internet.  

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Posts: 2
Registered: ‎04-04-2020

Re: Dell Inspiron 5566 laptop not connecting to 5ghz WiFi network

To add to my previous reply.  I tried the whole power cycle, unplugging and plugging in wires with NO solution to my issue. . I also dialed into the modem/router and EVERYTHING appears to be fine. 

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Emerging Expert
Posts: 7,220
Registered: ‎02-25-2013

Re: Dell Inspiron 5566 laptop not connecting to 5ghz WiFi network

Try re-installing the Driver for your network card under netowork adapters.

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Re: Dell Inspiron 5566 laptop not connecting to 5ghz WiFi network


@cblackburn wrote:

I have the exact same issue with my Dell Inspiron 5566.  Mine started last night when I lost internet access for 10-15 minutes.  When my internet provider finally reconnected service I no longer had access to 5ghz, only 2ghz.  Same thing with me, 5ghz no longer shows in my wifi adapter. I called Spectrum and they claim that there was nothing they could have done to cause this issue and advised it was my modem/router combo.  VERY strange you and I have the exact same issue just days apart. 

 

NOTE:  Strange is how the 2.4ghz is NOW so weak, compared to what it use to be, I can barely connect even though my modem/router is less than 10 feet from my laptop.  It also barely works with my ROKU, it says the strength is "poor".  And at times I can not connect at all or it disconnects after a few minutes. 

 

 

I was able, however, to tether my cell phone to my computer using a USB cord.  Since my phone still gets 5ghz from my modem/router I'm able to use my phone to access the internet.  


Unless you have something you really need the 5GHZ for, ex to take advantage of your higher modem speeds you really don't need the 5ghz network. I can see where 5GHZ Can be handy for gaming but 2.4ghz may not allow an optimal downstream. Go to Google.com and type Speed test in the browser window. You could also do the same on your Smart TV and ask her for a speed test, run it and see what the speed says, providing the smart TV has the ability to browse the internet.

 

FYI - I don't know what your current router is but in my household we have a lot of devices and had to disable the router in the built in ATT Gateway and get a router that would handle all of our devices. My Insignia smart speakers would crash as a result of poor wireless connections, there fore I had to download the Google App and start from square one. (Kept saying Net on the display or could not connect to the net)

 

The Linksys EA 9500 Router is a solid choice despite its price tag but you may be able to find less expensive ones with multiple antennas and it can handle more devices.

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