Even though your router can emit at both frequencies and is set up to do so (or just the faster 5GHz one), you might not find the network on your computer. This can be confusing, but the letters in the name of your router and wireless adapter after the 802.11 standard are crucial. Some routers and adapters work only on 2.4GHz, while others work with both. To resolve this issue, follow these steps. Be aware that you might need to buy new hardware if you are set on using 5GHz.
Method 1: Check if Your Router and Wireless Adapter Support 5GHz Wireless
802.11a – 5GHz802.11b – 2.4GHz802.11g – 2.4GHz802.11n – 2.4GHz and possibly 5GHz802.11ac – 5GHz802.11ax (Wi-Fi 6) – 2.4GHz and 5GHz
Generally, a router labeled 802.11a/g/n, 802.11ac, or 802.11ax (Wi-Fi 6) will work at 5GHz. However, a router labeled 802.11b/g/n has a slim chance of supporting that frequency, and you might need to upgrade. Here’s a screenshot to guide you through the command prompt check:
If your adapter supports 5GHz, proceed to the next method. If not, you will need to change the adapter to enable 5GHz wireless functionality.
Method 2: Enable 802.11n Mode on Your Adapter
If your hardware is compatible with 5GHz, but you still can’t use it, it might be disabled. Manually enable it using these steps: Click OK and restart your computer. You should now see your 5GHz network.
