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Windows says I have a connection to internet, but I don't...

Last response: in Networking
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February 7, 2010 2:10:03 PM

Ok, so I have a Netgear ADSL router it, has wireless N and a built in 4 port switch.

I have the following connected to the router normally

Wired
v v v
Laptop Running Windows XP Professional

Wireless
v v v v
PS3
360
Wii
Laptop running Windows 7 Home Premium 32bit (802.11n)
Laptop Running Windows 7 Professional 32bit (802.11g)
Laptop Running Windows Vista Home Premium 32bit (802.11g)
Desktop Running Windows 7 RC1 (802.11n)
4xiPod touch (802.11g)

Any of these could be connected at any given time and they have all worked perfectly well, bar a few IP conflicts but I guess that's to be expected with so many devices connected to a single router, constantly being turned on/off
But just to clarify, that worked fine.


I bought myself a 20m cable, ran it up into the loft from the router and down into my bedroom, where it would connect to a mains powered 4 port switch, which would output to my newest PC (Windows 7 Professional 64bit) and my older 'Desktop Running Windows 7 RC1' replacing the wireless connection it was already using.


It worked for all of about 2 hours, playing Crysis over the network with my brother. Turned my PC off and when I got up in the morning, tried to use it and it wouldn't work.


This is where it gets weird, I say the connection wouldn't work, but my computer (Windows 7 pro 64bit one) claimed that the wired connection was there and that it had internet access. When I tried to surf the web, or open anything like xFire and Steam, it wouldn't do anything, it doesn't come up with any errors, it just keeps trying to access the site, doing nothing.

At the time, I could only imaging I may have partially damaged the cable running it through the loft or when trailing it around the bedroom, so I tried a different cable, this one is one that has always worked perfectly, but in this situation, it does the same thing, both cables tried, no change.



I've tried removing the switch in my room from it and connecting the long cable direct from the router to my PC, but it does the same thing. Windows reports that it is connected with an internet connection, but when I open firefox or anything, it just doesn't 'go'
Oh, I also tried plugging my laptop into the router directly (the windows 7 pro, 32bit one) and it does exactly the same thing. (this says to me that it may be windows 7 pro that's causing the problem but I don't know)


Does anyone have any ideas? I've tried to give as much detail as I can, if you need any more information or want me to try anything, let me know. But I'm absolutely stumped. What confuses me most is that it worked for a couple of hours after we first tried it, so surely something must have changed overnight... But what? :S
Anonymous
a b $ Windows 7
February 7, 2010 2:30:39 PM

Did you try power cycling the router? If yes, post the output from "ipconfig/all".
February 7, 2010 2:39:56 PM

Windows IP Configuration

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

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 00-1D-92-65-00-81
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80:: d974:1a0c:c395:5815%11(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.88.21(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 234888594
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-67-AA-E7-00-1D-92-65-00-81

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{D12738F6-5770-494E-8163-A11F78621519}:

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 Reusable Microsoft 6To4 Adapter:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter 6TO4 Adapter:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 18:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #10
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 . . . . . . . . . . . : Microsoft 6to4 Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 13:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #5
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 14:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #6
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 15:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #7
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 16:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #8
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 17:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #9
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 21:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #13
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 19:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #11
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 22:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #14
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 20:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #12
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 23:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #15
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Related resources
February 7, 2010 2:41:14 PM

Also, since I restarted my PC and Router after taking the switch out of the equation, it's now saying

Unidentifid network
No Internet acess
February 7, 2010 3:03:47 PM

One more thing, did a firmware update on the Router
Dad has just tried a cable into his Windows 7 Home premium Laptop and his does the same thing as all the other computers.

Wireless works perfectly on all the normal things, wired connections on all PCs we've tried (the 4 Windows 7 PCs), all fail
February 7, 2010 3:17:25 PM

Won't let me edit previous messages... grrr....
Just tried the one remaining laptop, the one running Windows Vista Home Premium 32bit, and it works, both wired and wireless. that pretty much proves it's something windows 7, right?

None of us have really messed around with internet settings so it must be something default to windows 7, and common to Windows 7 RC1, Home Premium and Professional.
Anonymous
a b $ Windows 7
February 7, 2010 4:30:51 PM

Looks like the LAN ports on the router are not working. You're not getting an IP address from the router.
February 7, 2010 4:32:33 PM

Quote:
Looks like the LAN ports on the router are not working. You're not getting an IP address from the router.


That would be my thought too, but my sisters laptop (running vista) works when connected with cable and the built-in wireless turned off
February 10, 2010 11:53:33 AM

Have you tried different ports on the router? Sometimes some of them can go bad. For example I've seen ports 1 3 and 5 not work, but 2, 4, and 6 work normally. Just something to try. Also I assume you've verified you're getting a link light. Have you tried just releasing / renewing from the command line? Have you verified that the router is configured as a DCHP server and that it's address pool is large enough for the number of devices you have? It may have simply run out of addresses to assign, especially if you have you leases setup for long expirations.
February 10, 2010 11:55:07 AM

Also does your router have enough licenses / support that number of devices behind it? Some of the SOHO routers will only support say 10 IP's behind it on the private side.
February 11, 2010 11:39:27 AM

I don't think it was that it ran out of IPs, we tried disconnecting all the usual devices from other than 3 of the computers and tried all the ports on the router.

I think it's just totally broke... As of this morning it won't even let the XP or Vista computers connect via wired connection. I think the switch part of the router may have just packed in, maybe windows 7 just noticed it happening before the XP/Vista computers did?

Looking at getting a new router now, fingers crossed this one will work right lol

Thanks for all the help though both of you. :) 
!