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Fixing a Weak Wireless Signal

If you notice that the signal from your Apple Airport Extreme or Time Capsule has suddenly got weaker, it’s not a hardware failure but very likely interference from neighbouring devices like a baby monitor, wireless phone or a neightbours router. You can change the Radio Channel Selection using the Airport Utility App on your iPhone, iPad or Mac. Here’s how you change it on your Mac.
  • Go to the Applications > Utilities folder: Double click on the Airport Utility. 
  • Select your Airport Extreme or Time Capsule in the menu to the left. 
  • Click on the 'Manual Setup' button at the bottom of the window. 
  •  Click on the 'Wireless’ tab to display the wireless settings. 
  • Change the 'Radio Channel Selection' option to 'Manual’. 
  • Click on the 'Edit' button which displays the different channels. 
  • If you have the current version of the Airport Extreme it has two channels, the 2.4 GHz Channel for devices like your iPhone and 802.11b/g Macs and the 5 GHz Channel for devices like the newer Mac using 802.11n. 
  • Set the Channel to one of the Channel numbers. 
  • Click the 'Done' and then the 'Update' buttons to reboot your Airport Extreme. 
  • You should now see the signal strength on your Mac increase dramatically. 
If you still have a weak signal, change the 'Radio Channel Selection' until the signal strength has increased and there is no interference from neighbouring devices. Hopefully, this helps.

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