Wireless antenna or wireless router

You need to contact boingo. App developer or iTunes store if you put based it on you're. Phone

You'll need to have a wireless card installed in your laptop somehow. If it's internal then you won't need one.

Most wireless cards today have pretty decent internal antennas.

dear friend this could be because you have placed your computer far from your router or the antenna of your network adapter is not properly attached try removing it and connecting it again if you can. thanks Gagan

Need more info.
Do you know what type of wireless security you are using?
The first place to check to see if you are "really" connected is to click start, run, type "ipconfig" (no quotes) and see what IP address you have. If you have anything that starts with 169.xxx.xxx.xxx , you are not really connected.

I think you can try:

1. Homemade Pringles antenna - Eat a packet of Pringles (ready salted would be my choice) then follow this tutorial to convert it into a functioning directional antenna. Point it where you need a signal boost.
2. Airport Express & kitchen sieve - Take an Airport Express and set it into a common metallic kitchen sieve to boost it's signal further.
3. Try a parabolic dish - Hawking make a 802.11 B/G parabolic dish that basically pulls in a WiFi signal, performs some magic and boosts your range by up to 300%! It only costs $80 and it has a cool retro style.
4. Cantenna - This is basically a pro version of the Pringles tin hack. For $50 you can buy a Cantenna that plugs into your router and extends your WiFi signal. It also looks cool.

Also see this:
The Wi-Fire uses a powerful directional antenna, highly sensitive receiver and proprietary software to find and enhance normal WiFi signals. With it, you can connect wirelessly to the Internet-even at low signal strengths-faster, more reliably and with a more consistently strong connection-than you are able to with an internal wireless adapter.
The Wi-Fire draws very little power from your laptop battery. It comes complete with everything you need to connect wirelessly to the Internet. Just install the Wi-Fire Connection Manager, plug the Wi-Fire into an available USB port and you're ready to start. It can rest on any flat surface, laptop display or flat screen monitor.

You will need a wireless router with a built in switch. Most of them these days will have a built in switch. Here is a picture detailing what I am talking about.

You're internet connection goes into the ADSL port. Now, it will be broadcast WIRELESSLY through the antenna to your laptop. With this example, you could connect 4 more WIRED computers through the LAN ports. The built in switch is the division of the connection into the separate LAN ports.

I trust that this will help you greatly and look forward to your response!

The list of wireless routers that are available in Windows is very limited and the signal strength of any router that is detected is weak. This can occur when the Lite-On USB Wireless 802.11 b/g hardware and Windows are not able to fully synchronize the signal strength data. Figure 1: Example of detected wireless devices when the antenna cable wire is connected to secondary port Figure 2: Example of detected wireless devices in the same environment when the antenna cable wire is connected to primary port To correct this error , download and install Lite-On USB Wireless LAN Driver Update (sp35177) (in English) from the HP Web site. This update should only be applied if your PC has the Lit-On USB Wireless LAN adapter and is exhibiting the symptom. As a work-around, you can connect the wire that runs from the wireless antenna port to the primary port on the cord as follows: CAUTION: This product contains components that can be damaged by electrostatic discharge (ESD). To reduce the chance of ESD damage, work over a non-carpeted floor, use a static dissipative work surface (like a conductive foam pad), and wear an ESD wrist strap connected to a grounded surface.

1. Open the side panel.
2. Find the wireless networking board by following the antenna wire connected to the wireless networking antenna port on the back of the computer. Figure 3: Wireless networking hardware 1 - Wireless network board 2 - Antenna wire 3 - Wireless networking antenna port
3. Very carefully, disconnect the small wire from the board by gently pulling the end of the wire away from the board.
4. Connect the wire to the other available port on the board. Figure 4: Available port
5. Replace the side panel, connect the power cord, turn on the computer, and use the computer again to verify that wireless signal strengths have improved.

You need to purchase a wireless router. The router will have 5 ports on the back, one in and 4 out. The wire that you have going from your modem to your computer will go to the "in" port on the router. The out ports can be used for wired connections, and the wireless antenna will connect to any wireless computers.

Any computer that you want to connect wirelessly to your new router will need to be wireless-ready. For a desktop computer, you will need to buy and install a wireless PCI network card. Most laptops have built-in wireless.

You can buy a wireless router at most "big box" stores, like Best Buy, Office Depot, even WalMart sometimes carries them. A wireless router will cost between $75 and $150.

Oh I thought you wanted a wireless anywhere modem.
Ok
A Modem is what you need to get the internet from your internet provider. A router splits that connection from the modem so that more than 1 computer can get on.
What you need to do is get a wireless router such as the Linksys WRT54G then connect it to the modem so that it will broadcast wireless to your laptop.