@Joseph-TP Hello, thank you for reaching out. 1. Yes, I have tried rebooting those 2 devices multiple times (A samsung s23 FE and a Redmi Pad 2. I have also tried resetting the network and wifi...

I use a TP-Link Archer C80 router that has separate 2.4GHz and 5GHz SSIDs. I had bought a 2.4GHz extender from TP-Link and used it for a couple of months. It's the TL-WA855RE model. Today I ran into...