Connected, no connection.

[hazilo]

Hello everybody,

I'm having something realy annoying: since four or five days I was having problems with tcp ports that wouldn't open, no matter what I turned off on my computer(firewall, uac) while it was working the days before (hosting Warcraft3 games worked, and then didn't anymore.) Ports seems like they were closed.

So I tried different things to get it work, update drivers, update my router firmware but no way.
Here comes the real problem:
The only thing I achieved was to be connected, but not connected anymore, let me explain: I'm connected to the network with no problem on sharing/seeing other computers, no problem to access internet but windows7 keeps saying that I'm not connected, which prevents my computer from beeing in a homegroup and of course the opened port problem is still there.
Here is a pic of what I see:
http://www.lama-kun.ch/connection.jpg
If anyone could help me, I haven't found anything on how to get it back.

Thanks,
Hazilo

 

[aem]

Hi and welcome to SF.

You said you are able to connect to other computers, in which way?

Right now, what are is your machine connected to?

Pls provide ipconfig details.

 

[hazilo]

Here is the ipconfig:

Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Adrien>ipconfig /all


Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : dclient.lsne.ch
Description . . . . . . . . . . . : Atheros L1 Gigabit Ethernet 10/100/1000Ba
se-T Controller #2
Physical Address. . . . . . . . . : 00-1F-C6-20-F8-85
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::9976:6132:aaa9:1a73%21(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.123.105(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : mercredi 30 décembre 2009 11:01:00
Lease Expires . . . . . . . . . . : mercredi 6 janvier 2010 11:01:00
Default Gateway . . . . . . . . . : 192.168.123.254
DHCP Server . . . . . . . . . . . : 192.168.123.254
DHCPv6 IAID . . . . . . . . . . . : 352329670
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-28-10-A4-00-1F-C6-20-F8-85

DNS Servers . . . . . . . . . . . : 192.168.123.254
NetBIOS over Tcpip. . . . . . . . : Enabled

I'm can access other computers shared folders, printers and all, I see them in Network, but still it says "This computer is not connected to a network. Click to connect..." and when I clic and choose connect to a network a box over the network icon in taskbar opens and shows this:
http://www.lama-kun.ch/connection2.jpg
Edit: my network is: 2 comps on gb switch in chamber <-> gb switch in living room with another comp on it <-> router

 

[aem]

You are trying to connect onto your wireless network. w7 detects it but what sort of setup have you got for the network, Are u using WEP/WPA as security?

 

[hazilo]

No I'm not trying to connect to my wireless as I have no wireless card on it, it's a wired network.

 

[aem]

lol i must be going nuts, too much wires in my head.

Can you disabled ipv6.

I'm not sure why your DHCP, Default Gateway and DNS are all the same IP.

 

[hazilo]

Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Adrien>ipconfig /all

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : dclient.lsne.ch
Description . . . . . . . . . . . : Atheros L1 Gigabit Ethernet 10/100/1000Ba
se-T Controller #2
Physical Address. . . . . . . . . : 00-1F-C6-20-F8-85
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.123.105(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : mercredi 30 décembre 2009 13:42:18
Lease Expires . . . . . . . . . . : mercredi 6 janvier 2010 13:42:18
Default Gateway . . . . . . . . . : 192.168.123.254
DHCP Server . . . . . . . . . . . : 192.168.123.254
DNS Servers . . . . . . . . . . . : 192.168.123.254
NetBIOS over Tcpip. . . . . . . . : Enabled

Actually nothing changes without ipv6.

 

[aem]

Can you try and ping 192.168.123.254?

 

[hazilo]

Here it is:

C:\Users\Adrien>ping 192.168.123.254

Pinging 192.168.123.254 with 32 bytes of data:
Reply from 192.168.123.254: bytes=32 time<1ms TTL=127
Reply from 192.168.123.254: bytes=32 time<1ms TTL=127
Reply from 192.168.123.254: bytes=32 time<1ms TTL=127
Reply from 192.168.123.254: bytes=32 time<1ms TTL=127

Ping statistics for 192.168.123.254:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

 

[aem]

I doubt this is the right DNS setting for dclient.lsne.ch.

At command, type

nslookup

then, after the arrow type dclient.lsne.ch

What is the details you get.

 

[hazilo]

Here it is:

C:\Users\Adrien>nslookup
Default Server: UnKnown
Address: 192.168.123.254

> dclient.lsne.ch
Server: UnKnown
Address: 192.168.123.254

Name: dclient.lsne.ch

 

[aem]

Well that doesnt look right either. Upon searching for your DNS name this is what comes up.

dclient.lsne.ch

I pretty sure your DNS, Default Gateway and DHCP server if provided by your ISP, is NOT correct. These three cannot be the same.

Are you sure you have not manually input these in your tcp/ipv4 or in your router control panel?

I think you might need to speak to your ISP.

 

[hazilo]

Those three are not provided by the ISP, but automatically by the DHCP server of the router.
I think the problem comes from my computer and not from the dns as it's working like a charm on my two other computers. One is on W7 and the other one on XP, both having absolutely no problem.

Another things that I haven't seen before, office outlook can't even send/receive, as if he doesn't want to, like when there is no connection at all.

 

[aem]

So the other PCs that are working have exactly the same IPs for DNS, Default Gateway and DHCP? Weird.

Not sure what else to say, other than maybe restart your NIC adapter, double check your tcp/ipv4 (compare it with the other PCs) and see if there are any differences.

 

[hazilo]

Yes they have exactly the same IPs for dns, gateway & dhcp.

That's what is weird, everything works fine on other comps but not on this one. It was working great five days ago when opened ports were working.