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Check your network settings Start, control panel, networking and sharing center. Click on your connection, properties. Click on TCP/IPv4 and TCP/IPv6 and click on properties. Make sure the settings say to obtain IP address automatically and also for DNS, then reboot the modem and computer.
Obviously make sure its set to automatic IP/dns. If thats not working you need to do this
Click on Start -> All Programs -> Accessories -> Right click on command prompt and hit run as administrator.
In Dos prompts type these commands in EXACTLY AS WRITTEN.
netsh i i r r netsh firewall reset netsh winsock reset
Also, if you have anti virus like norton or trend micro or mcafee or webroot, you *NEED* to disable their firewalls and possible the entire program.
Some isp's for some reason make it impossible for Vista machines to pull ip addresses dynamically because of a flaw in windows vista. If this continues, i would contact your ISP and request a motorola surfboard 900 series modem, or a cable modem that is in route mode (NOT bridged, as bridged modems will pull a public ip address)
ask you ISP what are the IP address and DNS server address that you need to feed in the properties setting of the TCP/IP setting in the Network Connection wizard in Control Panel
without these the connection will not work
r u using lan connection or usb..need to know..?? assuming that u r using lan connection, u know the primary n secondary dns provided by bsnl (if so), & hv knowledge abt PPPoE connection..if not u gotta clarify more....!!
however, see if ur lan settings are ok n there is no conflict..open Control Panel->Network Connection->right click on Local Area Connection->click Properties->choose Internet Protocol TCP/IP from item menu->click on the Properties submit button therein->manually configure it by clicking on the radio button as 'Use the following IP address'->IP Address:192.168.1.2; Subnet Mask:255.255.255.0; Default Gateway: 192.168.1.1->put the DNS if u hv->nw press OK->OK.. make a through system scan with ur licensed, 'updated' antivirus (i prefer AVG/Kaspersy) and Microsoft Malicious Software removal Tool.. ..always better to hv ur System Admin/Vendors supervision....
Go into network connections on the laptop and select the Wireless Network. Go into properties and find the TCP/IP settings and ensure that the IP address setting is set to Automatic and the DNS settings also. If you have wireless security set on the router you will have to set that up on the laptop as well.
Reboot the modem (unplug power, replug) each time you switch from one to the other. Make sure the "Local Area Connection" is enabled on the laptop and the Yellow activity light on the bottom should blink steadily.
1. click START-settings-Controll Panel- Network Connections
2. right click on your LOCAL AREA CONNECTION and select PROPERTIES from the menu.
3.when properties opens, select TCP/IP by highliting it, then click on the properties .
4.once the new window opens titled "internet protocol (tcp/ip) Properties you will need to check the boxs that say "Obtain an IP adress automatically" and "Obtain DNS server automatically"
5. Click on OK
Hope this helps, post if you need further assistance.
try going to START>> control panel>> network connections>> right click on Local Area Connection>> properties>> highlight internet prtocol TCP/IP>> click on properties>> choose use the following DNS server addresses.. it will ask for a preferred and alternate dns server address that shud be given by your Internet service provider..
this solution can help you not to manually configure your connection everytime