[SOLVED] Can't connect to internet

Hayds510 · Dec 10, 2009

I've been having problems trying to connect to the internet on my Toshiba satellite laptop through a friends modem-router. it connects to the network but there is a red cross between the network and the internet on the network map.
on their other computers (macs) they can connect to the internet fine (infact i'm typing this using one of them). it says it can't connect to the primary DNS server. we've tried repairing it with the auto repair function, it says it's not getting a response.. we've tried changing the settings but nothing has made a difference, we've reset the router, restarted my computer.

i DO know it's possible to fix it without having to consult the isp provider or anything like that, it happened once in the past when i was here with my laptop. i remember there was something i changed, not a real complex technical setup adjustment, just something real simple.. i was half asleep when i did it but when i saw it managed to solve it i was surprised... Though i can't think what exactly it was that happened. it worked fine after that a few times i was here however just now its started to not work again in the same way. any clues what can be done to solve this?

the modem router is a netgear DG834 V4

johnwill · Dec 10, 2009

Re: Can't connect to internet

what version of Windows are you using on the laptop?

Let's see this with a wired connection to the laptop to the router.

Hold the Windows key and press R, then type CMD to open a command prompt:

In the command prompt window that opens, type type the following command:

Note that there is a space before the /ALL, but there is NOT a space after the / in the following command.

IPCONFIG /ALL

Right click in the command window and choose Select All, then hit Enter to copy the contents to the clipboard.
Paste the results in a message here.

If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.

Hayds510 · Dec 11, 2009

Re: Can't connect to internet

hi, the version of windows i'm using is Vista Home premium.

Microsoft Windows [Version 6.0.6001]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\Hayden>IPCONFIG /ALL

Windows IP Configuration

Host Name . . . . . . . . . . . . : Haydens-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : Belkin

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : Realtek RTL8187B Wireless 802.11b/g 54Mbp
s USB 2.0 Network Adapter
Physical Address. . . . . . . . . : 00-22-5F-68-05-E8
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::69b0:3675:6a5:bc74%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.2.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, 11 December 2009 11:03:49 AM
Lease Expires . . . . . . . . . . : Monday, 17 January 2146 6:17:20 PM
Default Gateway . . . . . . . . . : 192.168.2.1
DHCP Server . . . . . . . . . . . : 192.168.2.1
DNS Servers . . . . . . . . . . . : 192.168.2.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : Realtek RTL8102E Family PCI-E Fast Ethern
et NIC (NDIS 6.0)
Physical Address. . . . . . . . . : 00-1E-33-99-E2-FF
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 7:

Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : isatap.Belkin
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::5efe:192.168.2.3%12(Preferred)
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 192.168.2.1
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Local Area Connection* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Hayden>

this was done while connected to my router at my house, which works fine and allways has.. so i'm not sure if there will be some details that will only be accurate when connected to my friends router but i hope it helps :smile:
i'll try and get one while connected to their network though asap.

johnwill · Dec 11, 2009

Re: Can't connect to internet

Yep, showing me a good connection doesn't help in debugging it. :wink:

I'd remove any stored wireless network profiles from the machine and then try to connect to the problem network.

Depending on the exact router, there are also some fixes for Vista to allow compatibility that you might consider.

Changes that may help to increase the compatibility of Vista with older networking devices:

Disable the IP Helper service:

1. Hold the Windows key and type R, enter "services.msc" (without the quotes) and press Enter
2. Scroll down to the IP Helper service, right click on it and select Properties
3. In the dropdown box that says "Automatic" or "Manual", set it to Disabled and then click on "Apply"
4. Then click on "Stop" to stop the service from running in the current session
5. Click OK to exit the dialog

Disable IPv6:

1. Hold the Windows key and type R, enter "ncpa.cpl" (without the quotes) and press Enter
2. Right click on each network connection and select "Properties"
3. Remove the checkmark from the box next to "Internet Protocol Version 6 (TCP/IPv6)
4. Click OK to exit the dialog

NOTE: You should do this for each network connection.

Disable the DHCP Broadcast Flag:

Link: http://support.microsoft.com/default.aspx/kb/928233

Hold the Windows key and type R, enter regedit and press Enter.
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{GUID}
In this registry path, click the (GUID) subkey to be updated.
If the key DhcpConnForceBroadcastFlag does not exist, use the Edit menu, point to New, and then click DWORD (32-bit) Value. In the New Value #1 box, type DhcpConnForceBroadcastFlag, and then press ENTER. If the key exists, skip this step.
Right-click DhcpConnForceBroadcastFlag, and then click Modify.
In the Value data box, type 0, and then click OK.
Close Registry Editor.

NOTE: You should do this for each and every GUID subkey.
NOTE2: (GUID) is a mnemonic for the individual subkeys, the actual text "GUID" does not appaer.

The only program I'm aware of that currently relies on IPv6 is the new Windows Meeting Space. The first 2 changes will cause that program not to work - but will leave all of your normal (IPv4) connections unaffected. If it causes problems that you can't overcome, simply revert back to the original settings.

Hayds510 · Dec 15, 2009

Re: Can't connect to internet

here it is when connected to my friends router

Microsoft Windows [Version 6.0.6001]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\Hayden>IPCONFIG /ALL

Windows IP Configuration

Host Name . . . . . . . . . . . . : Haydens-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8187B Wireless 802.11b/g 54Mbp
s USB 2.0 Network Adapter
Physical Address. . . . . . . . . : 00-22-5F-68-05-E8
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::69b0:3675:6a5:bc74%11(Preferred)
IPv4 Address. . . . . . . . . . . : 10.0.1.4(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Tuesday, 15 December 2009 6:35:36 PM
Lease Expires . . . . . . . . . . : Tuesday, 15 December 2009 10:35:35 PM
Default Gateway . . . . . . . . . : 10.0.1.1
DHCP Server . . . . . . . . . . . : 10.0.1.1
DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : Realtek RTL8102E Family PCI-E Fast Ethern
et NIC (NDIS 6.0)
Physical Address. . . . . . . . . : 00-1E-33-99-E2-FF
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 7:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.Belkin
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Hayden>

Hayds510 · Dec 15, 2009

Re: Can't connect to internet

Some of these settings don't make the ones on my friends computer. ie, his IPv4 address is 192.168.0.8..... and the router that it describes is not the one in use... it says its a Realtek RTL8187B Wireless 802.11b/g 54Mbp... but his is a netgear DG834 v4.. Not sure if this helps.

johnwill · Dec 15, 2009

Re: Can't connect to internet

You appear to have overridden some of the automatic addressing settings, fix those and it'll probably work.

Configure DHCP for Windows Vista & Windows 7

Click on the Start menu, and select Control Panel.
Click on Network and Internet. (Skip this step if you do not see this Control Panel item.)
Click on Network and Sharing Center.
Click on Manage network connections.
Right click on Connection you wish to change and choose Properties. If Windows say it needs your permission to continue, click Continue.
Select Internet Protocol Version 4(TCP/IPv4) and click Properties.
Select Obtain an IP address automatically.
Select Obtain DNS server address automatically.
Click OK to close the TCP/IP Properties window.
Click OK to close the Local Area Connection Properties window.
Click Close to close the Network Connections window.
Click Close to close the Control Panel window.
Restart your computer.

Hayds510 · Dec 16, 2009

Re: Can't connect to internet

i'll do that!
however..
Straight after my last post , i was going through the network settings and just looking for anything that might have caused it to stop working in the first place, i went into Wireless Network Connection Properties and then Advanced..
i saw this thing '802.11d' and under the value box it was "disabled" i thought.. well what the hey, my computers not going to blow up from changing a setting. so i 'enabled' it. it stopped the network even connecting after that, so i disabled it again, and then when i tried to connect to the network, i could actually get on the internet again.. i dont know how that worked..
so i'm able to get online with their network now.

thanks for the tips and step by step stuff & attention with this issue, good to know people out there will explain stuff in a way that doesent require back answers of "and how do you do that?" [SOLVED] :grin:

[SOLVED] Can't connect to internet

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