How to use a Wifi which is 70 feet away.

105 pts.
Tags:
LAN
Wi-Fi
I have a lan connection, with a wifi. The wifi connection is on a different room about 70 ft away. The desktop has the LAN connection. Now If I take my laptop to the place near this desktop, I am unable to use the WIFI. What should I do to use it as WIFI, without purchasing a router.

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You need a repeater. A lot of cheap routers can function as repeaters, and you can often find them used for very little on Craigslist or a local equivalent. 

Before buying a router for this purpose, make sure it will work as a repeater.
Another possibility — cheaper but less elegant — is to have a long piece of Cat5 cable coiled up near your desktop, and use it for your laptop when you’re using it in that room. 
And you might (as someone else has already suggested) try better antennas — even bits of foil — on your wireless hub.
I still have the spare Cat5 even though I now have good wireless everywhere in my tiny home, as a courtesy for guests. You never know. :)

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  • TomLiotta
    You shouldn't need another "router". In some cases, the existing access point can be repositioned to make it more efficient around obstacles or other electrical interference. When that can't be done, some equipment probably needs to be purchased; it just isn't likely to be a "router".   Basic options are possibly putting a better antenna on the current AP, buying a bi-directional amplifier to use for your laptop, adding a second access point or adding a WiFi repeater.   Whatever you buy would pretty much do the same thing for your laptop as any other option. You would choose based on any other uses you would put the equipment to and probably on cost. For that short distance, it shouldn't really matter which one is used unless there is serious interference.   Tom
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