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Have computers in 2 locations 3/10 of a mile apart. need to network these computers. WiFi will not work because of trees. Ethernet is not feasible because we cannot string wire on posts. Internet? Need list of software providers or any other alternitives

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If you have internet, you can connect your PC with software such as PC Anywhere. The concept is a remote desktop control, the desktop of your remote computer is right in the monitor of your computer in front of you. Means, at home you work with the computer in your office. It is not a "real" network.
There is also some other alternatives, try this one:
https://secure.logmein.com/dmcq/097/home.asp

Posted on Apr 03, 2008

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Assuming you have Internet in both the locations. ..and some kind of networking setup in each location .. . get a VPN box and VPN into the other network ..to access the information

u will spend about $400 for a Cisco ASA

Posted on Apr 03, 2008

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Directional usb antenna may be an alternative.
link

There are other usb antennas that can work for your situation, this is just a simple solution.

What is your budget?
this other product has the wireless card attached.

Posted on Apr 03, 2008

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I am not familliar with that brand, so I do not know if it is a cable/dsl modem, a router, or a combination of the 2. I will assume it is the cable or dsl modem since you said modem.

The thing we need to do first is give you a basic understanding of whats what, and how it works.

Imagine a 3 tier water fountain. Water flows from the top, to the center, to the bottom.

Your home network is the same way. Signal flows from the MODEM to the ROUTER to the COMPUTER CLIENTS in that order. Keep this in mind. Also, remember you never, NEVER setup a router from a wireless computer client. you ALWAYS use an ethernet connected client in port 1 2 3 or 4.

Quick education about Firewalls: They are programs and devices that are designed SPECIFICALLY to BLOCK TRAFFIC. Think of them like Toll Roads. YOU have to open each virtual port for inbound, outbound, or both. Since that is such a painstaking thing, most firewalls come with default port settings, blocking the most typically unused traffic ports and monitoring the common ones, such as port 80 (the internet port) port 110 (the sending mail POP port) and port 25 (the receiving mail SMTP port). That is why typically, people who can get online (but cant send or receive email) have to disable their firewall or antivirus (security) suite, because the program is closing the ports making them useless. IF you have a router, theres a 99.9% chance that YOU WILL NOT need a firewall. Routers are firewalls by nature.

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Quick education about drivers. you DO need drivers for the wireless devices, you DO need drivers for the ethernet devices, but you DO NOT need drivers for the router, and YOU DO NOT need drivers for the modem. DO NOT HOOK THE MODEM TO THE COMPUTER THRU USB! USB is never to be used unless you do not have ethernet capability, it's like a spare tire. Remove any USB wires from the modem and put them away please! The ONLY wires you want in the modem are POWER and ETHERNET. (they dont make USB routers because USB is not a networking device, USB is a peripheral device)

You will be using Ethernet connection. An ethernet connection requires that you only have the ethernet drivers. So:
YES you need to make sure your ethernet drivers are installed and that your ethernet ports are enabled and working, and:
YES you need to make sure that your wireless card is enabled and functioning, and radio is switched to ON.

Now, remember the fountain? We are going to build it here. The trick is that we have to reset the DHCP list. (if we dont, then it wont work because DHCP will be stubborn and try to talk to the other items, not knowing they were removed). So, we will need to unplug power to the modem and router and shut down each pc client... after you print these directions of course.

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plug power into the modem and wait 1 minute for DHCP synch with the company. (usually you see a sync light or a ready light).

once the modem is synched with the ISp, plug power to the router and wait 1 minute. (so the router can get the dhcp from the modem)

If your modem and router are combined in 1 device, then just wait for synch with isp.

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Such can be bought from any computer shoppe/store. Most models come with an instruction/installer/driver CD that you need to run first before plugging in the WiFi USB.

If you already have an existing DSL account that connects to the Realtek, you would also need to get a Wireless AP/Router. It would probably be easier if you get a match pair (same brand)

If this is a completely new DSL WiFi setup, you need to get in touch with any WiFi Provider in your area. Most would provide a free USB WiFi Adapter if you subscribe to them so there would be no need to buy the USB WiFi adapter nor the Wireless AP/Router.

Hope this be of some help/idea. Pls post back how things turn out or should you need additional information.

Good luck and kind regards.

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