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Small Business Network Trouble

Last response: in Networking
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June 3, 2011 1:42:16 PM

Hello,

I work for a small business of five computers. We have a wireless network for internet traffic, and a wired network for file sharing. The wireless network works great for using the internet, but we are having trouble with the wired network.

The issue is being able to communicate with all of the computers on the wired network. The ability to speak with all of the computers on the network is hit or miss. Generally, computer A can speak with computer B, C, and D, but D can only speak with A. All of the letters are interchangeable; the computers are inconsistent in their ability to speak with each other.

Our network is a 100Mbit, circular set up, (at least I think it would be called a circular, or ring setup.)
To be clear, all of our computers are linked by switches, with no defined “master” computer. So, computer A is connected to a switch that connects to computers B and C, and the first switch connects to a second switch that connects more computers. There are no more than two switches between computers. Computers on the network are mostly Windows XP based, but we also have one Vista box, and one Windows 7 box.

I don’t know if this will help, but might as well throw it out there.

Thanks in advance,

Emmet,

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

C:\Users\****>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Conference-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 . . . . . . . . . . . : NETGEAR WNA1100 Wireless-N 150 USB Adapte
r
Physical Address. . . . . . . . . : E0-91-F5-56-49-80
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::7594:e64:3fa7:cf27%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.105(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, June 03, 2011 7:12:11 AM
Lease Expires . . . . . . . . . . : Saturday, June 04, 2011 7:12:14 AM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 333484533
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-D6-31-8A-F8-0F-41-0B-1F-39

DNS Servers . . . . . . . . . . . : 12.127.17.83
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) 82579V Gigabit Network Connectio
n #2
Physical Address. . . . . . . . . : F8-0F-41-13-61-AA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::6d94:e973:5ee7:4e4a%12(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.78.74(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 234360641
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-D6-31-8A-F8-0F-41-0B-1F-39

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.{A2F44348-8C59-497B-98D9-D8F046B04CE9}:

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 isatap.{2C03109E-5898-4362-A555-DD5723572D8C}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP 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
Anonymous
June 3, 2011 3:18:13 PM

Disable DHCP on the wired adapters and assign static IP addresses in any range except 192.168.1.X and don't use a Gateway address.
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June 5, 2011 1:07:31 PM

You really need a SERVER that is performing DNS on the local LAN for you. Right now DNS queries are going out to the Internet. Is the device at 192.168.1.1 that is functioning as your DHCP server capable of being set up as a DNS server?

You could also add entries to the hosts file on each computer so they know how to get to any computer. Just google host file on how to do this.

Kenzo
m
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l
!