The PC isn't establishing a connection with the 5GHz band anymore.
The PC isn't establishing a connection with the 5GHz band anymore.
I observed new connection problems I hadn’t experienced before. My network now uses 2.4GHz instead of the previous 5GHz. Both my router and wireless card support 5GHz, but troubleshooting didn’t yield results. I also found out that I can’t adjust a "preferred band" in Device Manager, as shown in the screenshot. Any advice would be helpful.
Everything remains identical to before the 5GHz upgrade. The main changes will be limited to standard window updates and driver updates for other components.
If your router supports several SSIDs, you might set up one 5GHz-only network with a unique name and make it the active connection. Occasionally it remains on 2.4GHz when the signal is better and no changes are made.
@Dujith, you're right about the fix. It's odd that it doesn't automatically switch to 5GHz anymore, even though the speeds are higher now.
It could be a driver update that altered its roaming settings or the 5GHz signal is weaker and more affected by interference, making it less likely to use it. WiFi adapters are often prone to this problem, which is why I keep my 5GHz connection separate from its own SSID.