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No wifi on 2.4GHz, 5GHz just fine

This is a discussion on No wifi on 2.4GHz, 5GHz just fine within the Networking Support forums, part of the Tech Support Forum category. I am having an intermittent issue with my Asus RT-AC88U router. The issue started about a week ago and there


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Old 12-02-2019, 01:23 PM   #1
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I am having an intermittent issue with my Asus RT-AC88U router. The issue started about a week ago and there have been no changes I have initiated to the router or my Windows 10 Pro PC.

I noticed it first on my phone when at home, it would connect to WiFi (2.4GHz) just fine but said under the connection that internet was not available. 5GHz and wired connections had internet just fine. Resetting (power cycling) the router did not fix it but sometimes it seemed to fix it's self. Last night I had no WiFi on 2.4 but this morning it's fine. My provider is Comcast but if it was Comcast I think the issue would be on 2.4 and 5.

I contacted Asus via their support chat and the tech. had me change some setting and I figured that fixed it till the problem showed up again a day and a half later.

Has anyone had a similar issue and if so found a fix? Is this a router hardware issue and I should contact Asus for a replacement?

Thanks for the help!!
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Old 12-02-2019, 01:53 PM   #2
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You can set the system to only connect to 5.0.
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Old 12-02-2019, 06:20 PM   #3
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There's a good chance you're getting interference from some other device or another network on the 2.4G band/channel. You can try changing channels in your router if automatic isn't working, which may have been what Asus support had you do. Make sure you don't have other devices like cordless phones, game controllers or a microwave nearby. Or just use the 5G network if you can - it has a weaker signal, but less interference in that frequency.
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Old 12-04-2019, 09:59 PM   #4
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Could also be a failing router. Age could be a factor, but not necessarily.
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