I previously had a standard default router that only supported 2.4GHz, and everything worked well. Recently, I switched to a 5GHz router (an Archer model) and set up two networks with different names: one for 5GHz and one for 2.4GHz. However, my PC only connects to the 5GHz network and refuses to connect to the 2.4GHz one, claiming the password is incorrect, even though it's definitely right. Strangely, my other devices, like phones, connect to the 2.4GHz network without any problem. Consequently, I had to revert to my older router since the 5GHz signal struggles to reach my room effectively.
3 Answers
Have you checked your WiFi adapter settings in the Device Manager to ensure that the 2.4GHz band is enabled? Sometimes, it may just be set to prefer the 5GHz band by default.
You actually don’t need to have different names for the 2.4GHz and 5GHz networks anymore. Just set them both to the same SSID and password, and let your devices sort it out automatically.
I tried that too, but my devices still only connect to the 5GHz band.
It sounds like a potential issue with your router itself. I've heard that some Archer routers can have trouble with the 2.4GHz band. Try testing the speeds with your phone; it might be connecting but not delivering reliable data.
I didn't check that! But when I use my old 2.4GHz router, my PC connects without any trouble, so it must be enabled.