What type of infrastructure to join LAN for 2 buildings which distance is about 300m?

Question

I have to allow computers in 2 separate buildings to join under same LAN. VPN failed because the existing broadband is too low (1MBps). These 2 buildings are separate by a few taller buildings and roads and the distance is about 300m.

What is the most cost effective ways to solve this problem?

Answer 1

Get a T1 piped in

Answer 2

Data Recovery-

http://spedtest.org/

Answer 3

The buildings in the way create a problem. Solution number 1 would have been to buy two wireless routers capable of running DD-WRT (such as Linksys's WRT54G-L, or even better, Buffalo's WHR-HP-G54), crank up the broadcast power to 100 mW or so, gather two old satellite dishes, construct a biquad antenna for each (see the sources, they're apparently better than the "cantenna" styles), rig it to the dish (requires some wavelength calculation to get the optimal position to put it), tell the two routers to connect to each other.... It may sound difficult and scary, but it's really quite easy. My little setup gives me an 84% signal strength at 1000 feet, line of sight. With a little signal bouncing and luck, you might be able to get something to work.

On the other end, you could try using LogMeIn Hamachi, either bridging the network connections, or if you have 16 or fewer computers, install it on each of them (it's free for up to 16 peers per network). Until I got our little 6-house mesh network up in our neighborhood (using the above mentioned antennas), that's how my buddies and myself played Counter-Strike together.