My Dir 615 is working very fine but up in one room the signal is very weak. How can I get it stronger? Thank you,
Hi - Wifi devices are very low power. Under optimal conditions, they can transmit up to 100 yards. Optimal conditions are basically an unobstructed "line of sight".
The number of and the more substantial the obstruction, they greater the impact is on the signal. An example is the devices (computer and the router) are separated by 40 feet and a single Sheet Rock or gypsum board and wooden wall; like you might find when a computer is being used in the back yard and the router is inside the house in a room next to the back yard. The signal should be relatively strong over this distance and this minimal obstruction material. Compare this to the same distance of 40 feet, but the wall is now brick or concrete, and there is a second wall like the first example - but it has a coating of aluminum; and there is a wooden floor; all between the computer and the router. That is an example is what you might find if the router were in a second floor room at a neighbor's house that has aluminum siding and the computer is in a basement of your house. The signal may be so degraded by aluminum, wood, concrete, soil and gypsum obstructions that the speed is very slow or isn't usable at all.
Now you've got an idea as to how the materials of the obstructions can wreak havoc on a wifi signal. There are also issues of interference. Most wifi "b", "g" and "n" signals operate on 2.4Ghz and and 5Ghz frequencies. These same frequencies are employed by other low power / unlicensed consumer devices - most notable are cordless telephones (not cell phones), microwave ovens, Bluetooth devices and baby monitors. If enough of these devices are in the area or between the router and computer, they can disrupt the signal significantly as well.
So, if the space between the computer and router are close, but you're still having trouble - look for these popular consumer devices. Unplug them / remove batteries and see if the signal improves. Move the router to a centrally located point in the area that it is to be served. Pay attention to the types of materials that the signal must pass through - air, paper, and wood aren't too bad. Brick, mortar, soil & metal can substantially reduce signals very quickly. It is better to have the router above the area to be served rather than below it.
Lastly, check the channel that the router is being operated on. The band of frequencies for "b" and "g" wifi consists of 11 channels (1 through 11) in the U.S. The best frequency to use is channel 5 (ch 5) or channel 6 (ch 6). This is because it is in the "middle" of the band (like the way 98 is middle of the 88 - 108 FM broadcast band). Other signals *may* be on the frequencies above ch 11 and below ch 1. Being on 5 or 6 keeps as much space between YOUR wifi signals and those that aren't wifi types. Ch 5 or Ch 6 may already be in use by a neighbor. If that is the case, you both will be on the same channel and the signal will be significantly reduced. Try to get as far away from his or her signal as possible - this may mean ch 3 or ch 9 - or maybe even ch 1 or ch 11 under the right conditions.
I hope this helps and good luck! Please rate my reply. Thank you.
Oct 03, 2011 |
D-Link DIR-615 Wireless Router