Recently purchased an Archer D9 as a replacement for my ISPs tp link router.
With the help of my ISP i have configured the unit (i am using the WAN) function rather than ADSL.
When I first connected up, I could see both 2.4 and 5 MHZ options, a coupls of hourse later I could only connect to 2.4 and 5 wasnt visible.
Now, the following morning, I can only connect to 5 and 2.4 isnt visible as another network.
My ISP has been through a number of options, they can see both bands, and both are set as active.
Anyone any ideas why I cant see both bands?
This applies to numerous device that I am trying to connect with, phones, laptops etc.