OK I have my broadband cable plugged into a DI-614+ wireless router and my laptop connects to it through a wireless card. I want to share the internet with next door but it doesn't reach. After buying a 5, 6 and 7dbi directional antenna non of them were working didn't seem to be adding any range at all. Its only 150feet away and it reachs to their window of the outer wall and the computer is about 10 foot past that. Unfortunately the antenna's didn't even add this 10 foot and I come to the choice now of buying a 8.5dbi antenna or extending it through an access point, but I'm not sure how to do this or if it will work. I read something about AP extending ranges of other APs but it never says anything about routers. Something to do with repeaters to extend a signal so what are the normal modes of an AP for? Basically I'm asking can I use an access point to extend the signal or shall I buy the antenna?

the manufacturer of your router should offer a product called a wireless range extender. Check where you purchased your router

Its a D-Link DI-614+ www.d-link.com. So I need a wireless range extender? What about this? http://www.ebuyer.com/customer/products/index.html?rb=4924577300&action=c2hvd19wcm9kdWN0X3Jldmlld3M=&product_uid=42576

this is what I'm referring to. Select the one that's appropriate for your flavor of 802.11, b or g, and the specs should say whether or not it will work with your router http://www.dlink.com/search/?qry=wireless+range+extender&x=0&y=0

Try the Belkin pre-N router. I found the range to be excellent, even when connecting to non-N laptop. About 30% increase in range. ALso try changing the channel on your current router to 1 or 11. I will help with interference with other routers and cordless phones.

By way of encouragement I was recently involved in setting up a 50mw WiFi link over a 3.5km path and with high gain directional antennas at both ends it worked flawlessly. Admittedly it was a totally unobstructed path over water but it does illustrate what can be achieved and the path calculations/power budget showed that we could have gone 4 or 5 times the distance had it been neccessary.