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2G band on my router is slow but the 5G connection works fine

I have disconnected all my devices and connected my laptop to my 2G band and the internet is very very slow but as i connect it to 5G it starts working fine.

Re: 2G band on my router is slow but the 5G connection works fine
Super User
Super User

2.4Ghz will usually be slower than 5Ghz due to a number of factors, including interference, congestion, and less spectrum available. Additionally, 2.4Ghz maxes at 802.11n whereas 5Ghz is capable of 802.11ac rates.

To improve 2.4Ghz performance, try changing the channel on your router. Channels 1, 6, and 11 are typically best, but you may have to try one of the in between channels if results are less than ideal. Keep in mind that channels 6 through 11 are prone to interference from Microwave ovens, so if you see disconnects or sluggishnes whenever a microwave is running, it's something to consider (ground your microwave, make sure the seals are good, move devices away from it, etc). Make sure your 2.4Ghz network is secured with WPA2 security, which allows for 802.11n devices to run at full speed. Make sure 802.11b devices are not being connected, and try to eliminate 802.11g devices wherever possible, since Wi-Fi will operate at the slowest link.

Also, if you have any wireless repeaters on your network, remove them since connecting through them usually cuts the speed in half.

On some less expensive devices with both Wi-Fi and Bluetooth, you may find that turning off Bluetooth will drastically improve the performance of 2.4Ghz Wi-Fi. Bluetooth operates on the same spectrum as 2.4Ghz Wi-Fi, and although it is usually a good neighbor, some devices have poor shielding/isolation between Bluetooth and Wi-Fi communications.