Loss of connection every 5 min

B

brimm47

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?
 
G

Guest

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
lan connection right click select properties or double click it.
Click to expand...
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
 
B

brimm47

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.
 
B

brimm47

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.
 
B

brimm47

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.
 
B

brimm47

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.
 
G

Guest

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.
 
B

brimm47

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.
 
G

Guest

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

Guest

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
 
G

Guest

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 ?
 
B

brimm47

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.
 
G

Guest

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.
 
G

Guest

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?
 
B

brimm47

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.
 
G

Guest

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
 
B

brimm47

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
 
G

Guest

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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