Unable to connect using wireless not sure wether there is an activate button for wireless bought laptop 2nd hand

Check the wireless router and high-speed modem.

If the two are not powered on, or if the Ethernet cable connected the two is not completely inserted into both connection ports, you are unable to access the Internet on the Acer Aspire One laptop computer.

Activate the wireless Internet connection on the laptop computer.

Right-click the wireless icon on the desktop, then choose "Enable" from the pop-up menu.

Without activating the wireless receiver on the Acer Aspire One, the laptop is unable to detect any wireless network.

Select the appropriate network you wish to connect to.

Your computer may be attempting to connect to a different Internet connection, preventing you from access the network you desire. Right-click the wireless icon, select "Search for available wireless networks," then choose the network you want to access.

Restart the computer.

The system may have booted and failed to detect the wireless receiver. Restarting the computer corrects this issue.

hope this helps

make sure you have an internet connection and that the ipod is synced to your own account

The USB wireless stick uses the cell phone network for wireless Internet connection provided it is within that ISP cell phone coverage area.
I doubt you can use a 2nd hand USB wireless stick unless the service is transferred to you. It is best you organise your own Internet connection with a ISP of your choice.
Laptop battery are removable and can be replaced when they are worn out, BUT the BIOS battery is inside the laptop and this can be changes but requires getting access to the insides of the laptop.

It could be the router which is giving you issue. Press and hold the reset button for 30 second and this makes the configuration to go back to its previous settings. The reconfigure the router with a new SSID and security key. Try connecting to the wireless network, the computers will consider it as a new network and will connect without any issues

What is the Operating system on the laptop ?
If it is XP then in the bottom right hand corner you will find Wireless network connection ( looks like 1 computer monitor). Use that icon to connect to the wireless network.
If it is windows Vista, then in the bottom right hand corner you will find 2 computer monitor icon. Use that icon to connect to the wireless network.
If it is Windows 98/ME/2000 then use the adapter utility to connect to the wireless network.
For MAC you will see the AIRPORT icon at the top.

Check the wireless settings of the router first . Make sure that yopu have all the wireless settings of the router. If you are not sure about the settings, then open the router set up and check the settings.

Click Here for step by step instructions on how to connect to the wireless network and troubleshooting steps

What is the Operating system on the laptop ?
If it is XP then in the bottom right hand corner you will find Wireless network connection ( looks like 1 computer monitor). Use that icon to connect to the wireless network.
If it is windows Vista, then in the bottom right hand corner you will find 2 computer monitor icon. Use that icon to connect to the wireless network.
If it is Windows 98/ME/2000 then use the adapter utility to connect to the wireless network.
For MAC you will see the AIRPORT icon at the top.

Check the wireless settings of the router first . Make sure that yopu have all the wireless settings of the router. If you are not sure about the settings, then open the router set up and check the settings.

Click Here for step by step instructions on how to connect to the wireless network and troubleshooting steps

Open network connections and disable your wireless connection (right click) then renable it and try to connect. What program are you using to manage your wireless connection?
If you are using your manufaturers software then try using windows xp (or vice versa)

Update the drivers for the wireless card.

Hi

Check wether the network card driver is properly installed in your computer and try to change the lan cable and check.

Jyothish

have hp computer,unable to switch on wireless connection.im just a novice.HELP