Has anyone had difficulties linking up to this router?? The Router has been set on 5 G and I need to access the 2.4 G side so as to activate my Razer Chroma lighting to sync my devices and Monster Smart Lighting strings.

Additionally, a updated firmware version is offered; Do I download it to my PC for installation or instead download it to the Tether App on my Mobile??

Any suggestions/advise would greatly be appreciated.