Windows 10: Failing to see 5GHZ SSID wifi network

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  1.    25 May 2016 #1

    Failing to see 5GHZ SSID wifi network


    Hello,

    Just wondered if anybody can help me sort out this problem which I have.


    I have Bt infinity 2 with a BT hub 5 router which enables me to have either a 2.4 GHZ or a 5GHZ wifi my problem is that it see's and connects to the 2.4GHZ but does not see the 5GHZ one , surely windows should see all network close or within range???

    any help would be greatly appreciated .

    Thanks

    Sam
      My ComputerSystem Spec

  2.    25 May 2016 #2

    samIOW said: View Post
    Hello,

    Just wondered if anybody can help me sort out this problem which I have.


    I have Bt infinity 2 with a BT hub 5 router which enables me to have either a 2.4 GHZ or a 5GHZ wifi my problem is that it see's and connects to the 2.4GHZ but does not see the 5GHZ one , surely windows should see all network close or within range???

    any help would be greatly appreciated .

    Thanks

    Sam
    Hi there

    I doubt whether it's BT's Router that's the problem unless it's not configured correctly.

    Two things

    First - does your device that's using Wifi have 5GHZ capability - if it doesn't then tough --no go. Note also some wi-fi extenders can't "See" 5GHZ networks either so if using an extender check that.

    Second - does your BT router have simultaneous (optional) transmission of both 5GHZ and 2.4GHZ or do you have to choose one or the other.

    Where I am (a long way from BT !!!!) I have proper Fibre Optic Internet all the way -- no copper - and the wi-fi box allows transmission of both 5GHZ and 2.4GHZ simultaneously - I have both enabled as some older devices can't see 5GHZ band.

    If you have a recent mobile phone check if that can see the 5GHZ network. Most smart phones are new enough to support 5GHZ wi-fi.

    If all else fails check Router settings --log on with a bit of LAN cable if you can't do it via wifi --addresses are usually 192.168.x.1 where x is normally 0, 1,or 2 - router documentation should give you that. Admin password / pin / other credentials are usually stuck on the bottom of the box but should be with your contract.

    If you can get 5GHZ band to work then the wifi will have a maximum theoretical throughput with current protocols of 433 Mb/s -- should be fast enough for you !!!!.

    I've replaced all my long LAN cables over the house as this speed is perfectly OK -- I have 2 NAS boxes with no wi-fi but use a small piece of lan cable to connect to "Ethernet-->wifi" bridge router operating on 5GHZ band. The NAS boxes think they are on LAN but are actually on 5GHZ band. Moved all these from living area to hidden well out of the way. 5GHZ band is fine for fast wi-fi. !!

    Cheers
    jimbo
      My ComputerSystem Spec

  3.    25 May 2016 #3

    jimbo45 said: View Post
    Hi there

    I doubt whether it's BT's Router that's the problem unless it's not configured correctly.

    Two things

    First - does your device that's using Wifi have 5GHZ capability - if it doesn't then tough --no go. Note also some wi-fi extenders can't "See" 5GHZ networks either so if using an extender check that.

    Second - does your BT router have simultaneous (optional) transmission of both 5GHZ and 2.4GHZ or do you have to choose one or the other.

    Where I am (a long way from BT !!!!) I have proper Fibre Optic Internet all the way -- no copper - and the wi-fi box allows transmission of both 5GHZ and 2.4GHZ simultaneously - I use that as some older devices can't see 5GHZ band.

    If you have a recent mobile phone check if that can see the 5GHZ network. Most smart phones are new enough to support 5GHZ wi-fi.

    If all else fails check Router settings --log on with a bit of LAN cable if you can't do it via wifi --addresses are usually 192.168.x.1 where x is normally 0, 1,or 2 - router documentation should give you that. Admin password / pin / other credentials are usually stuck on the bottom of the box but should be with your contract.

    If you can get 5GHZ band to work then the wifi will have a maximum theoretical throughput with current protocols of 433 Mb/s -- should be fast enough for you !!!!.

    I've replaced all my LAN cables as this speed is perfectly OK -- I have 2 NAS boxes with no wi-fi but use a small piece of lan cable to connect to "Ethernet-->wifi" bridge router operating on 5GHZ band. The NAS boxes think they are on LAN but are actually on 5GHZ band. Moved all these from living area to hidden well out of the way. 5GHZ band is fine for fast wi-fi. !!

    Cheers
    jimbo
    Firstly Thanks for you reply Jimbo... As far as I know that it does operate both 2.4 and 5 GHZ at the same time, ( That is why they tell you to rename the 5ghz one so that you can see the difference)

    I personally thought that windows should see all networks within range even though it couldn't connect to it they still should be able to see them.

    My Samsung does see the 5GHZ network and is able to connect as does my sky box. ??

    Thanks,

    Sam
      My ComputerSystem Spec

  4.    25 May 2016 #4

    samIOW said: View Post
    Firstly Thanks for you reply Jimbo... As far as I know that it does operate both 2.4 and 5 GHZ at the same time, ( That is why they tell you to rename the 5ghz one so that you can see the difference)

    I personally thought that windows should see all networks within range even though it couldn't connect to it they still should be able to see them.

    My Samsung does see the 5GHZ network and is able to connect as does my sky box. ??

    Thanks,

    Sam
    Hi there

    I think you've answered your own question here.
    If the Wifi card can't handle the 5GHZ signal it won't see it -- this isn't a Windows problem - it seems it's your computer hardware. The Wifi card is actually a simple Radio receiver plus transmitter.

    The easiest way of putting it is for example to imagine you have an FM radio (88.7 - 108 Mhz) but there's a test station operating on 120 MHZ -- your radio wouldn't even be aware of its existence.

    The Samsung phone shows your 5GHZ signal is working correctly. You will either have to get a USB 5GHZ wifi dongle or put up with the 2.4 GHZ band when using the computer -- that's the way it is -- hardware isn't compatible with 5GHZ wifi.

    Cheers
    jimbo
      My ComputerSystem Spec

  5.    25 May 2016 #5

    samIOW said: View Post
    I personally thought that windows should see all networks within range even though it couldn't connect to it they still should be able to see them.
    Your hardware (network adapter) has to support dual band. I'm betting the WiFi network adapter in your computer is only a single band network adapter and, therefore, not physically capable of receiving the 5 GHZ band.
      My ComputerSystem Spec


  6. Posts : 3,506
    Win_8.1-Pro, Win_10.1607-Pro, Mint_17.3
       25 May 2016 #6

    samIOW said: View Post
    Hello,

    Just wondered if anybody can help me sort out this problem which I have.


    I have Bt infinity 2 with a BT hub 5 router which enables me to have either a 2.4 GHZ or a 5GHZ wifi my problem is that it see's and connects to the 2.4GHZ but does not see the 5GHZ one , surely windows should see all network close or within range???

    any help would be greatly appreciated .

    Thanks

    Sam
    Others are probably correct - you're card doesn't support 5G
    You might need a driver update - can't tell because your system specs are slim.
    What is the exact model? Sony Vaio what?
    If not a driver, your model # will tell members IF the card supports 5G
      My ComputerSystem Spec

  7.    25 May 2016 #7

    Plus 5 ghz is typically faster because most devices are not dual band and they have to share bandwidth. Also 5 ghz doesn't handle walls as well as 2.5 ghz. If you have walls in between the router and PC that could be an issue also.
      My ComputerSystem Spec

  8.    25 May 2016 #8

    Slartybart said: View Post
    Others are probably correct - you're card doesn't support 5G
    You might need a driver update - can't tell because your system specs are slim.
    What is the exact model? Sony Vaio what?
    If not a driver, your model # will tell members IF the card supports 5G
    Thanks for your reply,

    Here is a link to my model of sony vaio

    http://www.sony.co.uk/support/en/con...VPCEB4J0E/list
      My ComputerSystem Spec

  9.    25 May 2016 #9

    This:
    Wireless LAN Type IEEE 802.11b/g/n
    Wireless LAN Max. Date Rate (Mbps) 150
    would lead me to conclude that the laptop only has a single band WiFi adapter. Is there a specific model WiFi adapter listed under Network Adapters in Device Manager?
      My ComputerSystem Spec


  10. Posts : 3,506
    Win_8.1-Pro, Win_10.1607-Pro, Mint_17.3
       25 May 2016 #10

    Thanks, that made it easy ... sort of

    The only hard info came form the manual
    Page 134: User Guide: VPCE Series (PDF)
    If you want to connect your computer to a wireless LAN access point using the 5 GHz band,
    make sure the option to use the 5 GHz band or both the 2.4 GHz and 5 GHz bands is selected for
    Wireless LAN Settings in the VAIO Smart Network settings window.

    Wireless LAN communication (IEEE 802.11a standard) using only the 5 GHz band,
    available on selected models only, is disabled by default.
    Sooo, if you have a select model, you should see the 5G setting in VAIO Smart Network

    If VAIO Smart Network did not carry over to Win10, you'll have to poke around in the network adapter configuration - might be under Radios
      My ComputerSystem Spec


 
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