2.4 ghz not showing in Bellkin N750

[Djbrian1]

Only 5ghz is showing and not 2.4 ghz in Belkin N750

 

[Pooneil]

Presumably you have looked for it from more than one device so you believe it is the router that has a problem.

Log into the router's management page and check your settings. Make sure the 2.4 ghz is enabled, has SSID broadcast set on and has a different SSID that the 5 ghz so you can differentiate between them. If all these are OK and there is still no 2.4 ghz signal, change to channel number to a fixed number rather than "auto." Try channels 1, 6, & 11.

Look at the firmware and make sure it is up to date.