Setting up a wireless router is not really that difficult anymore if you stick with the default settings. While that works fine often, it is better to go through the configuration manually to improve the security and performance of your wireless connection.
Besides making sure that you are running the most secure protocol available, you may also want to make sure that your router is placed and configured optimally for reception.
One of the things that you can do to ensure that is to make sure that you are using one of the free channels and not one that all of your neighbors are making use of.
If you own an Android phone or tablet, you can use it in conjunction with the WiFi Analyzer application to find the best spot and configuration for your router.
Just start the application after you have installed it to start using it. It will display the channel graph by default which is useful for two purposes.
You may want to walk around into all rooms or even outside to get a feel for the reach of your router's signal strength. Note though that this does not necessarily reflect how well others can connect to it or attack it, as the device that is used for that also plays a role here.
You can switch to other graphs and information with a tap on the eye icon on top. Available here are time graph, channel rating, ap list and signal meter.
You may also want to check the preferences of WiFi Analyzer to modify some settings like the scan interval, change the available channels in your region, or set it to automatically enable and disable WiFi when needed.
I have used WiFi Analyzer several times in the past to find the best possible channel configuration for wireless routers. It is ideal for that purposes, and even if you are not familiar with the technicalities, you can still use it effectively by trusting the apps channel ratings.
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