Driver for wifi

Please can you confirm the Make Model and OS, along with any configuration details like touch screen, backlit keyboard, SFF or tower etc etc.

Are the wi-fi bands using the same passwords?  Same names?

For help please supply more details.

The Wi-Fi driver for your Dell computer should be listed in your Dell drivers / downloads page - see link below).

Drivers and Downloads

@anne_droid​ screenshot Attached herewith; different passwords for wifi bands

@kannansci​ 

Happy New Year; shall be grateful for your reply

Hi

I have a "map" of my local Wi-Fi area....

using inSSIDer.

So, where possible, choose a channel that isn't too clogged.

Also I would attempt to manually add the network...

1. Manually add the Wi‑Fi network

Use this if the SSID isn’t showing or is hidden.

1. Press Win + I → Network & Internet → Wi‑Fi → Manage known networks.​

2. Click Add network.​

3. Enter:

   • Network name: exact SSID of your 2.4 GHz network (e.g. WhiffyToo).

   • Security type: usually WPA2‑Personal or as your router shows.

   • Security key: your Wi‑Fi password.

4. Tick Connect automatically and (if hidden) Connect even if this network is not broadcasting.​

5. Click Save, then select it from the Wi‑Fi list and Connect.​

If your router uses separate SSIDs for 2.4 and 5 GHz, just make sure you choose the 2.4‑GHz one when adding (often has “2G”, “2.4G”, or similar in the name).​

2. Make the adapter prefer 2.4 GHz

This nudges Windows 11 to use 2.4 GHz when the AP offers both bands.

1. Press Win + X → Device Manager.​

2. Expand Network adapters, right‑click your Wi‑Fi adapter → Properties.​

3. Go to the Advanced tab.​

4. Look for a setting such as Band, Preferred Band, Wireless Mode, or similar (name varies by driver).​

5. In Value, choose an option like:

   • Prefer 2.4 GHz band, 2.4 GHz only, or the lowest mode that corresponds to 2.4 GHz (e.g. 802.11b/g/n only), depending on what’s offered.​

6. Click OK and reconnect to your 2.4‑GHz SSID.

If your adapter does not expose a band/preferred‑band option, you can only control this from the router side (separate SSIDs per band and connect only to the 2.4‑GHz one).​

3. Router-side checks (important)

To ensure you actually have a 2.4‑GHz network that Windows can use:

• In the router’s Wi‑Fi settings, confirm that 2.4 GHz is enabled and broadcasting an SSID.​

• If both bands share one SSID and use “band steering”, disable that and give 2.4 and 5 GHz different SSIDs, then connect Windows only to the 2.4‑GHz SSID.​

If in doubt please ask.