Regular Visitor
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6 Messages
Some devices cannot connect to 2.4
I recently installed a couple additional WiFi light switches (not sure if this is related) and had to cut power to the part of the house that powers the router. When everything was powered back up all seemed to work fine and connect without issue but now a few of my devices, my iPhone, kindle and only one Echo will not connect to the 2.4 GHz band. it’s not an issue with the phone because that can connect to the 5 GHz but my Kindle and echo can only connect to the 2.4 so now they are essentially useless. I tried restarting, resetting the router and for a minute my phone connected back to the 2.4 and then dropped off again. Says unable to join. Every other device in the house can connect to the 2.4 except for my phone, Kindle and echo. Any ideas or suggestions?
EG
Expert
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107.6K Messages
4 years ago
The two WiFi bands have recently been combined into one with the Comcast gateway devices. Some devices get confused and don't know how to see / talk to combined bands.
If you are not using any Xfi Pods, you can try separating the 2.4 and the 5.0 bands and give them two different broadcast names / SSID's;
https://www.xfinity.com/support/articles/change-wifi-mode-admin-tool-xfinity-xfi
Associate those devices with the 2.4 band's SSID (broadcast name) and password.
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CCAbbie
Problem Solver
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1.4K Messages
4 years ago
@John_ca052510 [Edited to match username, remove PII] Thank you for taking the time to reach out with your concerns. EG has some great tips you can try.
Something else you can try is to forget the Wi-Fi network on the devices that aren't working, reboot them and then attempt to reconnect. Please let us know if any of those tips do the trick!
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John_ca052510
Regular Visitor
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6 Messages
4 years ago
Thanks for the tips but still no connection.
My bands (the 5.0 and 2.4) are separated, always have been. My iPhone recently has been able to connect to the 2.4 ghz band again just out of the blue but I could not get internet service even though I was connected. Had to switch back to the 5.0. Also my Kindle paperwhite still has NOT been able to connect. It only has the 2.4 option. It can see the network just won't connect. I tried the reboot/restart on the Kindle as well as a restart on the Gateway router and it just will not log on. I keep getting an error suggesting my internet is down but obviously it is not. I did follow the suggestion to "forget" the network but still won't connect. I have other devices in the house that randomly lose connection. My AppleTV lost connection just the other night and was bouncing back between networks but could not connect. Had to reset the router. Other devices (smart switches and light bulbs) just randomly lose connection too. Usually they reconnect after a router restart but that's becoming annoying. It's a 3x a week thing now. I shouldn't have to restart my router that often. I believe there is an underlying issue with the router/modem. As for my kindle for now I can use my phone as a hotspot and it will connect to the internet that way.
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Mallen39
Visitor
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1 Message
3 years ago
I have had all of these problems on my phone/devices and pretty much every time I've wanted to use my printers because they can only see the the 2.4 connection but the actual connection doesn't work when connected IF it even shows up in the list a lot of times it doesn't. This all started when comcast made me upgrade to the latest wifi router. They really need to address the issues on their site clearly so that customers aren't scouring the internet/forums looking for a solution. When I installed the new router I had immediate connection issues with my printers, security camera and iPhone. My computers (apple) just jump between whatever connection is working fine sometimes its not even on my wifi connections but the actual "xfinity" one. Multiple times a day my internet goes out. It's becoming quite irritating.
There are a few things I have done to fix the issue.
1. Separated my wifi connections (for those of you that haven't yet)
Download the xfinity app
Click the CONNECT tab at the bottom of the screen
you should see your network name at the top
under your network name you should see
(see network) click that.
In the top right of the screen you will see a pencil icon click it
From there you will be able to separate your networks.
2. Changed wifi channels
logged into my router at http://10.0.0.1/
username: admin
password: password (unless you have already altered this)
Go to the list on the left. CONNECTION/WIFI
You should see your wifi names at the top with edit buttons to the right.
Edit the one you wish to change your channel. The settings look like the ones below.
Under channel selection take it off of automatic and select a number if you want.
Please note 802.11 n mode only compatible with AES and None encryption!!
3. after doing all of this I sometimes still have to completely restart my gateway through the xfinity app to get the 2.4 connection to actually work. Not sure why the reset is necessary but it is whenever it goes out. Its really annoying tho.
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Eyegon
Visitor
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3 Messages
3 years ago
I recently had the same issue.
I hve a new XB7 gateway. 2.4 and 5 GHZ bands are combined. Printer would connect to gateway but not to computer; light bulbs, Rodo Vac, would not connect to gateway. I solved by going to gateway admin page (http:/10.0.0.1) and temporrarily disabling the 5GHZ band,, connecting all my devices , them re-enabling the band. Everythin works fine after taht.
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