I have a Mac Pismo laptop which used to work fine with its airport card
and my 2wire 2700 modem. Then one day I was working on the
internet with my desktop hooked up by ethernet and my laptop on
wireless and suddenly the modem was resetting itself. This
happened a couple of times within a few minutes and then I found I
couldn't connect with the wireless. My laptop shows I'm getting a
strong signal on the airport monitor. The network status pane
says airport is connected to the network. It then says airport
has a self-assigned IP address and may not be able to connect to the
internet. I've tried a few different things I found on various
forums, but nothing seems to work. I'm thinking my problem must
be connected to the modem resetting itself. Any thoughts would be
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Re: wireless not working
Check for the wireless security settings in your modem.. and check if your airport is connected properly, if it is connected properly, then you would get a valid ipaddress, try resetting the modem and reconfigure your wired and wireless settings, if possible , try to upgrade the latest firmware for your modem and then reconfig it..
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Try with a shorter enet cable and see if you get internet, if you are able to get internet with a shorter cable then the cable might not be working fine. Else get a wireless card installed on your computer since the 2wire modem has wireless connectivity. It would be more easy and convenient to connect to wireless using the 2 wire modem.
To connect to your wireless router, it needs the router’s wireless settings configured and also needs the wireless cards in all the laptops and or computers to be configured with the router’s wireless settings. Then the laptops and desktop computers can communicate with your wireless router. To set-up and secure the wireless router from unauthorized access, follow these steps: - 1. Connect the wireless router to your computer with a LAN cable. 2. Start your browser and enter the router's configuration URL IP address. 3. Enter the router setup, login and password 4. Change the admin password 5. Go to the wireless settings and change the default SSID and turn off SSID broadcast. 6. Setup encryption key the strongest is WPA2 (if not then WPA). 7. For further security measures - turn on MAC address filtering and enter the MAC address of the wireless cards on the computer/s you want to connect to this wireless router. 8. Record the settings you have made and keep it in a safe place and Save the settings. 9. Configure the wireless cards on the computer/s with the SSID and encryption settings of the router. 10. Remove the LAN cable between the router and the computer then the computers should be able to connect to the router wirelessly.
If you are using Windows XP, you go to start --> control panel --> network connections --> right click on wireless network connections & go to properties --> go to wireless network tab --> delete / remove all the networks under preferred network box then click on view available wireless or configure then connect to your network by clicking on the name of your modem --> type in the wireless password.
if you log into your router/modem you shuld be able to enable mac filtering add the mac address's you simply want to have access and they will be denied, alternatively you can turn off the dhcp so your router doesnt assign them access - either will work but i prefer the mac filtering.
ipconfig /all in a dos box will display mac address.