Friends, if you have any wireless router at your home or at your workplace ,simply dont know why it always sucks and the kind of weak signal 
phobia always stir in your mind. you are scratching why you are always getting low signal strenght then please consider following points before shifting your gears towards wired networking
Position Matters :-
It might happen that your access point is not positioned correctly with respect to your wireless client. ideally your access point should be placed at an optimum distance from your wireless client , research says it should not be less then one meter and should not so far away that you can not even scan your access point regularly . More over there should not be any mettalic object in the closest path between the access point and wireless client.
Regular driver and firmware update
You should always update your client and access point regularly , Most of the time newest driver and firmware have new features and patches for old bugs which may help you to solve any particular problem you may facing.
Channel of Wifi access point
WI-Fi access point can work in both 2.4 Ghz and 5.0 Ghz band , but these access points which supports both bands are a bit costly , So if you are having any such access point and your wifi client can also works in 5.0 ghz then you should always put your access point in 5.0ghz , this will help you to get a clean channel where your home devices like microwave oven and cord less phone will not interfere with working of wifi device. To Know whether your device support 5.0 ghz band , put your access point in any of the channel bearing number after 14 , wait for 2 minutes and try to scan at your device if you can see access point then your device support 5.0 ghz band, if your device or wi-fi router donot work at 5.0 ghz then you should check with your microwave oven,cordless phone specification to determine on which channel exactly in 2.4ghz these are working , try to always remain away from these channel.
Compatibility issues
if you have wi-fi router and device of the same company then chances are quite high that they work more perfectly than any other devices . so try to buy both devices from the same brand . Usually if both devices are from the same company then these devices can use some proprietery algorithms to give you that edge in terms of signal strength and data rate.
Antenna issues
Wi-fi routers are fixed with omnidirectional antenna which is required to send signals in a circle, means it will be usefull in case when router is placed in the middle of the room and clients are in all directions, but in your case you might be one or a veru few clients which are taking service from wi-fi router, so to make your wi-fi router directional you replace external antenna of your access point with some high gain antenna and position it in direction towards your wifi client.
Client Device check
Do check it may be possible that wi-fi router is sending signals properly but there is some problem with the reception of signal at your device end , so just replace this with some borrowed adapter from some friend or relative and see if the signal strength improves, then it was your device which was culprit so try to replace it.
Extended network
if you are not getting good signal strength , you may look towards extension of your network by connecting another access point with your previous access point. this is very easy task , you need to connect new access point with the previous one through the beck end with the help of some cat-5 ethernet coaxial cable , configure the wi-fi distribution service(WDS) in between them and bingo !!!!! you have extended your network to use in the distant corners of your house.
If you need any particular help regarding any of configuration, do let me know i will be glad to help.
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Nice article