All wireless routers broadcast Wi-Fi signals on a channel. If any of these channels get too busy – i.e. if your neighbour’s router is broadcasting on the same channel as yours – it can interfere with your signal and slow your internet down.
Before you change your wireless channel, try rebooting your router first. This gives your router a chance to automatically select the best channel and is often more accurate than choosing a channel yourself.
If this doesn't help, try changing your wireless channel manually using the steps for your router below.
Your router's make and model is on the sticker on the back of your router. The make comes first (e.g. Huawei) followed by the model (e.g. HG633).
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