Lumia 950XL 5ghz Wifi issue

Anonymous
2016-01-13T02:33:23+00:00

So I have found when using my 5Ghz N network the phone will lose all WiFi networking.   On first use, it will connect up OK.  But let it sit and come back to it, it will have lost the WiFi network and the ability to see any other WiFi network with "no networks found".  Only a phone reboot will fix it until it happens again.

So far I've experienced it on my Linksys E8350 (supposed AC2400 and MIMO which the 950XL claims to support).  My Wifi router is set for Wireless A or N on 5Ghz, while it can do N, B, or G on 2.4

My workaround is to  only connect to the 2.4Ghz WiFi at this point. 

Anyone else experiencing complete WiFi radio failure like this?

Windows for home | Other | Devices and drivers

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  1. Anonymous
    2016-02-15T13:21:12+00:00

    Left home, rebooted 950 XL, looked for other signals throughout the day for 8 hours. Results: No 5GHz signals

    That is valuable information. Next theory for your case: Windows phones do not scan for 5 GHz, when the connection to the SIM got lost. Therefore, please, use SIM-PIN to note reboots: All apps » Network & wireless » Cellular & SIM » SIM settings.

    1. Do you face any reboots before?
    2. Are you able to recover 5 GHz scanning through going for Airplane Mode?
    3. Which firmware version do you have: All apps » Settings » System » About » More info: 00017, 00027, or 00038?

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  2. Anonymous
    2016-02-12T18:13:03+00:00

    I am having that exact issue with my phone as well. The5GHz networks popup when they please and I can connect to just find that it has dropped and switched to ... LTE.

    Very annoying when you are on metered data plan and it happens while watching an HD movie...

    Any clues to when this might be resolved and does MSFT own it as a defect?

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  3. Anonymous
    2016-02-12T13:56:42+00:00

    To test your hypothesis all I have to do is unplug my router and I should start "seeing" all my neighbors' 5GHz signals.

    Please hold ....

    Test 1: Unplugged home router, rebooted 950 XL, waited 1 hour.  Results: No 5GHz signals

    Test 2: Left home, rebooted 950 XL, looked for other signals throughout the day for 8 hours. Results: No 5GHz signals

    Conclusion: It's the hardware!!

    Next theory?

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  4. Anonymous
    2016-02-12T13:38:47+00:00

    Of course it is the phone because other devices work for you. However, because my Wi-Fi at 5 GHz is no issue with my Lumia 950, this software bug arises in a combination of devices. Microsoft must get aware of this combination to analyze this issue. Then, Microsoft is able to A) solve this for all users, B) give a switch for affected users, C) or at least explain the cause.

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  5. Anonymous
    2016-02-12T13:25:58+00:00

    Total BS. It's the phone period.

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