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Viking55's avatar
Viking55
Aspirant
Feb 15, 2016
Solved

WNDR3400v3 connects 5G and ethernet but not using 2.4G

I have an WNDR3400v3 N600 Wireless Dual Band Router which will no longer connect in the 2.4G band if security is turned on. The 5G band and all ethernet ports work fine.   As I have 2 other 2.4G ac...
2.4G
N600
Security
Troubleshooting
WNDR3400v3
  • ElaineM's avatar
    ElaineM
    Jun 09, 2016

    Vellu Sounds like you already have a faulty unit.

    Last resort would be re-upload the latest firmware. You can still load the same firmware version, it's called reflash.

    If that didn't fix it, then it's a faulty unit.

Retired_Member's avatar
Retired_Member
Feb 15, 2016

Have you reset it to defaults?

Viking55's avatar
Viking55
Aspirant
Feb 16, 2016

I'll give the reset to defaults a try, but the reason why I did the firmware update was because the 2.4G signal would not allow users to stay connected. The entire setup worked fine for close to 3 months with no changes made during that period.

  • Retired_Member's avatar
    Retired_Member
    Feb 16, 2016

    And your point is? There are only several things you can do, If it worked once, then it's not likely a user setting will correct it.

     

    1) reset it

    2) reset it to defaults

    3) change FW ( Up or Down ) and still Reset it to defaults

    4) do nothing and replace it.

     

    Good Luck!