One Notebook not connecting to the Base

Firstly, what operating system are you using?
applicable for windows xp or windows 7. press Windows Key + R
select the appropriate network connection (e.g. Local Area Connection). Right click the Local Area Connection choose Properties. For windows xp, doble click Internet Protocol. For Windows 7, double click Internet protocol IPv4. choose Obtain an IP address automatically. press OK. right click again the Local area connection then choose Status. there tou can see that your computer is negotiating for an IP address from the dhcp server. if still cannot obtain an ip address, press Windows key +Run then type "services.msc". scroll down and find DHCP client. ensure that this service is running.
Please also try to check if the network you are connected does have a DHCP server.

If the Advent notebook normally connects to the internet without problem on her network, then you need to check the following:

1. That she does not have any proxy connection setting in her web browser that you do not use on your own network.

2. Check that her wireless adapter is configured to Obtain an IP address automatically and also Obtain DNS server address automatically.

3. Check the status of the wireless adapter connection and ensure that the Advent notebook has been given a valid IP address, i.e. if your are connecting to a wireless router on your network, you should see an address something like 192.168.x.x where the x.x depend on how your router is setup. If you see a 168.x.x.x address then the notebook is not getting a valid, routable IP address and you should try to do a Repair of the network adapter connection. Repair may also be shown as Diagnose and repair depending on which version of Windows is used.

There are two ways to find your IP address:
- Through the Network and Sharing Center
- Through the Command Prompt
How to find an IP address through the Network and Sharing Center:
1. From the Start Menu, right-click on Network and click Properties.
2. A Network and Sharing Center window will open. Click View status to the right of Local Area Connection.
3. In the new Local Area Connection Status window that opens, click Details. Your IP Address will be listed among the other connection details.
How to find an IP address through the Command Prompt:
1. From the Start Menu, type Command Prompt in the search field then click Command Prompt once it appears.
GL

Either the network requires you to manually configure your ip settings(unusual but not unheard of) or your wireless adapter is not set to get settings from DHCP. Check to verify that your wireless adapter is set for DHCP and if this is correct then you'll need to contact the administrator for the wireless AP and haver them check their settings.

Under the DHCP settings, make sure that there is enough IP addresses for the router to assign. Although DHCP is somewhat "automatic" if there is not a sufficient range of IP addresses for the DHCP server to assign, then only a small number of clients can connect. See this page here: http://support.dlink.com/emulators/di524/h_dhcp.html

Also make sure that your notebooks are not set to the same static IP address, only one device can connect to a specific IP address. To check this under Windows XP, Right-click your wireless network connection and select "Status" then "Properties". Highlight the "Internet Protocol TCP/IP" and select "Properties". Make sure that the radio buttons "Obtain IP address automatically" and "Obtain DNS server address automatically" are selected. Click OK and OK to close the windows and save the settings.

I would also unplug the router, wait 60 seconds, then plug it back in and try to reconnect. Sometimes for whatever reason, the routers memory can get corrupted, (just like a computer) and need to be restarted.

If you go to the control panel in the start menu, check the network connections. It may be a LAN connection or another wireless connection that is not connected. You can disable them by right clicking on them. If you are able to get on the internet then you are ok. Let me know. Please give good rating...

well!! I have an answer for you.your comp is loosing the IP address.first connect your computer via cable then goto start - programmes - accessories - dos prompt. type ipconfig.you`ll get ip address,subnet mask,default gateway.copy it. goto network and sharing center in vista and network connection under control panel in XP,IN Vista,click on view status,goto properties and double click on internet protocol(tcp/ip) or IPv4In XP,right click wireless network connection and goto properties and double click on internet protocol(tcp/ip).type in the IP address,subnet mask,default gateway.in DNS server address type the default gateway in primary DNS and in secondary 4.2.2.2. your connection won`t drop after this.

reset the modem and the wireless router by powering them off for 30-60 seconds, then plug power back in. Wait a minute or so for the devices to reset then go to the PC and try to connect again

Good luck

On the Support tab - what does it say the "Address Type" ?
If its DHCP then check that on the TCP/IP properties;
If on "automatic IP address" then it wont take any entered IP address.

Do not put any IP address.

Check that "Obtain an IP address automatically" is checked and also "Obtain DNS server address automatically" is also checked. On wireless network tab check "Use Windows to configure my wireless network settings".

On preferred network check that your wireless network is there, if not add it and move it up

1) Verify if Wi-Fi WLAN interface of your notebook is OK.
1a) Check whether HW switch is ON and the wireless system service is running.
1b) Switch on the WLAN Access Point (router) SSID broadcasting.
1c) Scan WLAN networks by the notebook. Can you see your home WLAN? If not, there is HW or SW problem in your wireless adapter probably. If WLAN is visible, continue by next steps.

2) Remove all WLAN security on both sides (AP and notebook): Authentication = none/open, encrytption = none.
3) Activate DHCP server in the router and set the dynamic IP assigning on WLAN notebook interface.
4) Select your home WLAN SSID in the list and try to connect.
5) Wait and check status. Is WLAN connected? Does obtain the notebook an IP address?
6) In success case set the WLAN security.