Network problems

dragotron · 27 Nov 2009

Raargh said:

dragotron said:

OK, so I ran wireshark and pressed Capture... still not connected, doesn't seem to be monitoring anyting but it says Capture In Progress at the bottom...

Hi;
Wireshark is a great program, but I would not try to use it to troubleshoot if you don't already know your way around with it. It's complex and will probably raise more questions than it answers. Get up to speed with it on a computer that is functioning.

Start with the basics, and try "divide and conquer" if possible. What do you get from ipconfig /all? Are you getting a DHCP lease? Have you verified the NIC driver is fully up-to date? (I assume it is wired). Is the switch and the NIC both set to auto? Do you have another computer you can plug into the end of the cable and compare?

Raargh

Hi Raargh.. I did ipconfig and i'm not sure what how to tell if i'm getting a DHCP lease. I half the instances of DHCP say enabled and half say disabled... but dont see anything about DHCP Lease...

Also, I tried maxxing out my DHCP range as suggested here. Dunno if that comment was for me but it didn't help its still seems to be happening.

thanks guys

Raargh · 27 Nov 2009

Hi Drago;

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

C:\Windows\system32>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : T3400-win7
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : elp.rr.com

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : elp.rr.com
Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Controller
Physical Address. . . . . . . . . : 00-23-14-29-D8-A7
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::7f23:9943:4ed0:805b%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.100(Preferred) << The current lease
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, November 27, 2009 1:36:58 PM
Lease Expires . . . . . . . . . . : Saturday, November 28, 2009 1:36:58 PM
Default Gateway . . . . . . . . . : 192.168.1.1 << My Linksys router
DHCP Server . . . . . . . . . . . : 192.168.1.1 << My Linksys router

the IPv6 stuff does not matter (at least not in 2009 ;-) )
DHCPv6 IAID . . . . . . . . . . . : 234889753
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-9C-EE-20-00-23-14-29-D8-A7

DNS Servers . . . . . . . . . . . : 24.93.41.127 << Road Runner supplies these
24.93.41.128
NetBIOS over Tcpip. . . . . . . . : Enabled << Eeek! Just noticed this - I don't do any local Windows sharing so I don't need and will disable ASAP.

Tunnel Adapter is (I think) related to IPV6
Tunnel adapter isatap.elp.rr.com:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : elp.rr.com
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* 9:

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
IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e50:28d7:35a2:3f57:fe9b(Preferred)
Link-local IPv6 Address . . . . . : fe80::7f23:9943:4ed0:805b%13(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Windows\system32>
------------
Can you please do an ipconfig /all and post it here?

Sorry I don't have a specific suggestion to fix the problem, but gathering data is always a good first step.

Raargh

torrentg · 27 Nov 2009

Hey Raargh.

I know you're trying to be helpful and actually are being, but I wouldn't advise posting such personal info as internal ip addresses and especially mac info online for public to see.

Raargh · 27 Nov 2009

torrentg said:

Hey Raargh.

I know you're trying to be helpful and actually are being, but I wouldn't advise posting such personal info as internal ip addresses and especially mac info online for public to see.

heh - I edited the MACs and IPs that could reveal any personal info.

. I'm old and paranoid.

@drago - ditto for when you post - either blank out the MACs or alter them.

Thanks!

Raargh