I have a Microsoft MN-100 wired router. When i hav my other computers
hooked up to the router it works just fine. But when i hook up my other
computer. After about 5 min my router losses connection to all of the
computers. But when i unplug my computer, the other computers get their
connection back and work perfectly fine and never lose connection. I
have a Realtek RTL8139 Family PCI Fast Ethernet NIC onboard my
computer. I think that my configuration on this computer might not be
right. I was hoping that someone could help me out?

Hi

From the computer thats losing the internet connection. Try the following
disconnect the other two... Then...

while connected on the internet

1) start >run > type command    to bring up your command prompt.
2) ipconfig /all   ..this will list all your settings like dhcp address, dns
IP's, currrent ip, .Connection-specific DNS Suffix..etc
3) write down the 2 DNS servers IP listed, subnet, Gateway
IP,Connection-specific DNS Suffix and the physical /current IP of your PC.
4) Disconnect that PC from router.
5) the PC that keeps disconnecting make sure this is connected to interent
6)  manually configure tcp/ip settings > control panel> network connections
7) This will bring up your LAN properties ..click properties again.
8) Select Internet Protocol TCP/IP  then click properties
9)Select use the following ip addess ...flll in the IP address, Subnet and
gateway you wrote down or look from at command prompt window.
10) Down below Select use the following DNS servers...fill in your primary
and secondary DNS servers
11) click the advanced button then IP Settings tab then under gateway select
the gateway IP and click edit ....deselect automatic metric and in the metric
box put 1 the lowest metric is the quickest.
12) then click DNS tab and fill in Connection-Suffix for this connection
this is the Connection-specific DNS Suffix you wrote down
13) Make sure you deselct the following under DNS tab : register this
connection's address's in DNS & Append parent suffixes of the primary DNS
suffix
14) click the wins tab and deselect / uncheck Enable LMHOSTS lookup

15) keep clicking ok should be 3 ok's to click. The computer might have to
be rebooted. After reboot try surfing for a good half hour and see if your
conecctions drops. Then after a while plug in the other two and see if any
lose connectivity. You have just setup as a static IP for the reason your
DHCP server may be doing something wonky. This is for troubleshooting
purposes.

Sound like a dhcp or dns problem

I did everything that you told me to do. And it still losses
connection. When i have the computer not pluged in everything works
fine, no disconnects or anything.So i know its not the router that is
bad. But when i plug it in, it losses connection in the 5 min still.

I did everything that you told me to do. And it still losses
connection. When i have the computer not pluged in everything works
fine, no disconnects or anything.So i know its not the router that is
bad. But when i plug it in, it losses connection in the 5 min still.

I did everything that you told me to do. And it still losses
connection. When i have the computer not pluged in everything works
fine, no disconnects or anything.So i know its not the router that is
bad. But when i plug it in, it losses connection in the 5 min still.

I did everything that you told me to do. And it still losses
connection. When i have the computer not pluged in everything works
fine, no disconnects or anything.So i know its not the router that is
bad. But when i plug it in, it losses connection in the 5 min still.

Strange ..so your saying it works fine when the one computer that usually
disconnects is connected by it self ?

Sorry I didnt reply sooner...Had a nap this afternoon and fell asleep at my
computer.

I mean that i have  2 computers working fine. Then when i hook up my
3rd computer. 5min after that 3rd computer is hooked up all the
computers loss connection. But when i unplug the 3rd computer all the
computer get their connection back. And they keep their connection.

Can the 3 computers communicate with one another in your home network by
pinging one another?

Not sure how u do that?

go to start >run>command prompt > command >enter

1)from the prompt on all computers type ipconfig > get each ip address
2) from the command prompt you now know the IP of each machine. type ping
1.2.3.4 this being the of other 2 computers IP. Try pinging  every computer
say comp A pings B,C... comp. B ping A,C and comp. C pings & A,B if all is
fine.

Then next try the tracert command from the prompt to all computers
EX.    tracert 1.2.3.4   this being each machine  same thing here computer A
tracerts both B & C comp. ...B comp. tracerts both A & C...then comp C
tracerts A & B.

This will make sure that your route to one another is ok and stable no
blockage. If there is then could be part of the problem.

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well whe i did the ping 1.2.3.4 it said that it was timed out. Then i
did the tracert 1.2.3.4 and it did wat is supposed to. I kind of
confused about the tracert 1.2.3.4 on wat it was supposed 2 do.

Also have you tried different hooking to different ports on router.. I know
it all sounds basic and silly, sometimes its the silliest things that cause
the problems

i have tried all of that. Switching the ports and moving the wires
around also.

Also for all 3 computers when you type ipconfig /all are all computers specs
in the same range ? ip numbers & subnet masks and is IP routing enabled on
all 3 computers ?

ya my config is set for 192.168.2.2 - 193.168.40. They all are in the
range of the IP addresses. what is getting me is, Its just this one
computer. None of the others have a problem. I have my router here next
to me. And when i lose connection, i just unplug the bad computer and
plug it back in and it has its connection back.

Thats the frustrating thing. Trying to narrow down possibilties and there are
many possibilities.One computer knocking all 3 off the network thats a
strange happening

I wonder if the one computer is not forwarding broadcasts ..hhmm?



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Hi, I'm computer technician from Calgary, Canada and I have same problem as
brim***@hotmail.com at two homes where I do computer services. So far I
couldn't find any connection why this is happening. Only Microsoft updates
are common things for all those computers where I having the problem.
Thanks


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Did you get it fixed ?

If your losing connection most likely now it came to mind it would be an
Issue of ARP possibly not being accepted/forwarded to your internal network.

Usually if arp is blocked you dont lose connection right away thou in a
couple of minutes a connection goes dry. 

Check to see if one computers is blocking arp / broadcast and look at the
registry setting in all computers 4 this ... start> run > type regedt32  

....then look for reg entry under the directory

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

ForwardBroadcasts
Key: Tcpip\Parameters
Value Type: REG_DWORD - Boolean
Valid Range: 0 or 1 (False or True)
Default: 0 (False)
Description: Forwarding of broadcasts is not supported. This parameter is
ignored.

may need to enter this entry and set to 1

hey i did what you told me to do. And i'm going to see if it works and
ill message back to if it dosnt work? Thanks You

I hope that tip will do the trick in having all computers happily flowing
down the pipe line.

Post your results if it were successful or not? 

Cause if that didnt fix it.  There are more options. Just hope that was the
fix




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hey it still loses its connection. aftere that 5 min it losses
connection. for about another 3 min its gets it back. i wouldnt care if
it was doing this but. I got a ps2 and i play online also, and i lose
connection everytime tho and i cant be doing that. So i want to fix
this pro so i can play my game in peace. Not having to lose connection
every 5 min. And its not the ps2 thats the prob because its clearly the
computer. I just want this to be fixed. One other thing i formatted the
hard drive. Puting in another xp. And when i do this the computer works
just fine for like a day then it messes up. In that day it would never
lose connection. And i never loaded any drivers for anything not even
the ethernet card. Nothing it just kept its connection. It just seems
that the config changes auto after that first day.

What your saying is that you have re-installed xp on one machine. Then
letting XP install generic default drivers for that machines hardware
devices. It works fine for a day then computer stops functioning ? The
registry tweak did help  ?

With your setup it may take longer to troubleshoot since you have many
machines hooked up to the network plus your running a ps2 and plus many diff
scenarios happening... Patience is key...it will be solved.

Recap
What you know it's only that one computer causing the trouble on your network?
and do have the ethernet manufacturer driver installed for that computer and
not a windows generic driver install driver for the ethernet card ?

I think you have tried looking at all the usual things that may cause this
so far. Next lets revert to another aspect for a minute that it may be a good
idea to look at, before making any more configs.

Could you list what hardware in your computer ?... the computer thats
causing the trouble..

Motherboard  - made by who and model ?
CPU - AMD or INTEL speed  ?.0 Ghz..?
Ethernet Card - make and model 10/100 ?
Router - Microsoft MN-100 wired router
OS - Windows XP  ?

hello

Meanwhile...

Here's another registry tweak to try on all 3 computers

To enable TCP/IP forwarding, follow these steps: 1. Start Registry Editor
(Regedit.exe).
2. In Registry Editor, locate the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
3. Set the following registry value:
Value Name: IPEnableRouter
Value type: REG_DWORD
Value Data: 1
A value of 1 enables TCP/IP forwarding for all network connections that are
installed and used by this computer. 
4. Quit Registry Editor.

After entering registry tweak reboot computer then see if that works... If
the IPenableRouter registry setting didnt help then also see your settings
for this.

On all three computers while connected to the net, from the command
prompt...type ipconfig /all and look at the setting NODE TYPE are all 3
computers reading BROADCAST for node type ? if not this registry setting sets
the node type to a  broadcast mode value. In this setting the  broadcast
value is 1.

Both this and Iprouting should work or help

HKEY_LOCAL_MACHINE\computer\CurrentControlSet\Services

NodeType
Key: Netbt\Parameters
Value Type: REG_DWORD - Number
Valid Range: 1,2,4,8 (B-node, P-node, M-node, H-node)
Default: 1 or 8 based on the WINS server configuration
Description: This parameter determines what methods NetBT uses to register
and resolve names. A B-node computer uses broadcasts. A P-node computer uses
only point- to-point name queries to a name server (WINS). An M-node computer
broadcasts first, and then queries the name server. An H-node computer
queries the name server first, and then broadcasts. Resolution through
LMHOSTS or DNS follows these methods. If this key is present, it will
override the DhcpNodeType key. If neither key is present, the computer uses
B-node if there are no WINS servers configured for the network. The computer
uses H-node if there is at least one WINS server configured.

Any registry tweak entered always reboot computer then see if it works. Not
all registry entries take affect right away until computer is restarted.

the top post didnt work and the bottom post i cant find in the reg.
HKEY_LOCAL_MACHINE\computer\CurrentControlSet\Services
There is no computer option on it and when i serach wat u told me to
find it didnt find the directory.

but it put in DhcpNodeType and it took me to where i could find the
value type and its 4. Which means M-node. what should i do now?

All 3 computer ipconfig node types are M Node / broadcast first then name
server ??

Yup your correct should have mentioned that this registry entry is optional
and is not entered in windows by default. It has to be entered manually.

Thats the full path. Once in the directory right click inside right window
area...new > DWORD Value > NodeType

...then double click the new NodeType entry or right click modify ..under
value data enter 1 for all computers then reboot computer

HKEY_LOCAL_MACHINE\computer\CurrentControlSet\Services\Netbt\Parameters

NodeType
Key: Netbt\Parameters
Value Type: REG_DWORD - Number
Valid Range: 1,2,4,8 (B-node, P-node, M-node, H-node)
Default: 1 or 8 based on the WINS server configuration
Description: This parameter determines what methods NetBT uses to register
and resolve names. A B-node computer uses broadcasts. A P-node computer uses
only point- to-point name queries to a name server (WINS). An M-node computer
broadcasts first, and then queries the name server. An H-node computer
queries the name server first, and then broadcasts. Resolution through
LMHOSTS or DNS follows these methods. If this key is present, it will
override the DhcpNodeType key. If neither key is present, the computer uses
B-node if there are no WINS servers configured for the network. The computer
uses H-node if there is at least one WINS server configured.

Hello

Is your computers all working correctly now ?????

sometimes its works then it will lose its connection again.

sometimes its works then it will lose its connection again.

Hello again.

I had something strange happen to my connection as well. What happened was
since I didnt manually enter the gateway and my 2 dns servers manually. I had
clicked to check e-mail and lost my connection.

A Eureka came to mind and thinking how your 3 computers are setup...

Try this ....
1) start up only one good computer hooked to the net. Then right away go to
your command prompt type ipconfig /all .

2) Next make sure your good computer can surf the net by opening up web
browser if you can surf..then close browser.

3) Write down the Gateway IP & the 2 DNS servers
4) On each computer manually configure the TCP/IP properties and enter your
gateway IP & for a gateway metric enter 1. Manually enter the 2 dns servers 
When you enter the gateway IP you wll have to click the advanced tab. Leave
the IP address as automatically obtain.

5) Reboot all computers

This may do the trick in directing computers

Let me know if this helps ?

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