1. OPZoro's Avatar
    At first when I set up my router (TP-Link AC1200) my phone can connect to the 5ghz network but now it won't. I could get the signal and could tap on it to enter the password, but when I press connect it only showed as "Saved, Secured" but would not connect to it.
    My friend's tablet E and IPhone 7 can connect to my 5ghz network and maxed out the speed limit. Even my laptop that support ac can connect to it too so it's just my S4's problem.
    I've tried various solutions I found on the net but none of them worked.

    Android version:4.4.2
    01-28-2017 06:20 PM
  2. B. Diddy's Avatar
    Welcome to Android Central! Have you already tried forgetting the network, then connecting again?
    01-29-2017 02:42 AM
  3. OPZoro's Avatar
    Welcome to Android Central! Have you already tried forgetting the network, then connecting again?
    Yes, I've tried that already.
    01-29-2017 10:36 AM
  4. OPZoro's Avatar
    I can connect to my 2.4ghz but just not the 5ghz. Every time I try to connect to it the phone would just keep scanning, it's not even attempting to connect to my 5ghz. The router is right to the phone, the 5ghz network sometimes is on the bottom of the available networks then it would jump to the top after the phone finish scanning.
    01-29-2017 10:43 AM
  5. B. Diddy's Avatar
    Have you already tried rebooting the router, by unplugging its power for 10 seconds and then plugging back in again?
    01-29-2017 06:34 PM
  6. OPZoro's Avatar
    Have you already tried rebooting the router, by unplugging its power for 10 seconds and then plugging back in again?
    Yes, I even reset both the modem and the router.
    01-29-2017 09:21 PM
  7. B. Diddy's Avatar
    Anything here helpful? http://forums.androidcentral.com/spr...nnections.html. Sounds like for at least some folks, it's a hardware issue.

    Also, do the 2.4 GHz and 5 GHz networks have the same SSID? If so, try changing them to be different from each other.
    01-29-2017 09:29 PM
  8. OPZoro's Avatar
    Anything here helpful? http://forums.androidcentral.com/spr...nnections.html. Sounds like for at least some folks, it's a hardware issue.

    Also, do the 2.4 GHz and 5 GHz networks have the same SSID? If so, try changing them to be different from each other.
    The 5ghz ssid is added the "_5G" at the end to differentiate from the 2.4 ghz. I used wifi analyzer and discovered that my 5ghz is not showing, but it would show up in the list of available networks after the device finished scanning.
    And I don't know if this has anything to do with it, when I was able to connect to it for the first was when I set up my router for the first time. But I have had disabled the ssid and enabled it again. That's when my phone can't connect to it anymore.
    01-29-2017 10:53 PM
  9. B. Diddy's Avatar
    Have you been able to try connecting your phone to other routers that have a 5 GHz band, to see if the problem is with your router or with the phone?

    Also, this is a longshot, but make sure the router's firmware is up to date.
    01-30-2017 12:02 AM
  10. OPZoro's Avatar
    Have you been able to try connecting your phone to other routers that have a 5 GHz band, to see if the problem is with your router or with the phone?

    Also, this is a longshot, but make sure the router's firmware is up to date.
    I tried to connect another 5ghz network, the result is the same, couldn't connect to one. So the problem is just the phone.
    The firmware of the router is up to date.
    01-30-2017 04:44 PM
  11. B. Diddy's Avatar
    Another longshot -- go to Settings>Wifi, tap Menu>Advanced, and turn off Smart Network Switch (if it's there).
    01-30-2017 05:46 PM
  12. OPZoro's Avatar
    Another longshot -- go to Settings>Wifi, tap Menu>Advanced, and turn off Smart Network Switch (if it's there).
    It's already off.
    01-30-2017 06:00 PM

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