why the F am i being disconnected?

Here we go this is my first post so please bare with me. I am running windows xp home on a laptop and a tower. i have a Dlink router. [5 gig wireless] but we are have them hardlined.[cat5] I have comcast cable and i am dhcp for my connection. i have a Realtek RTL8139 Family PCI Fast Ethernet NIC. For some reason i cannot for the life of me stay online for 20 minutes before i get the message that [ your network connection has been disconnected]. On both computers! I am about to throw this pc out the window. Please help!

**Moved from Antionline: How do I? to General Chit Chat**

Hrmmm... have you done some tcpdump listening to see what the packets are doing? Have you checked your dhcp settings to see when the lease expires?

Here's a list of some of those options:

IpConfig

thank you mitten and frame i appreciate the help! Someone negged me for this post =[ but you helped me.

also mittens how do i check to see when my lease expires?

it says monday june 30th. sorry thanks again anything else i might be able to do? how do i do a tcpdump?

i did a flush and a register dns. thank for your help!

Quote:

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i did a flush and a register dns.

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Sorry. What do you mean?

You can download Windump, the Windows version of TCPDump. It's a packet sniffer so you can use it to see if any unusual packets are happening or other activities. ;)

tytytytytyty!

lmao mittens my screen is scrolling crasy lines of ip address how do i determine which are bad or not?

MsMittens, He probably used the registerdns command switch, it's in windows XP and not only renews DHCP licences like renew, it also refreshes all DNS names. Windows XP is designed for DNS and Wins is gone so there are some tools to fix DNS problems. The flushdns command flushes existing DNS resolvers. tools for troubleshooting DNS nightmares like I have ;)

cOre, you did all that and it's still going bye bye after 20 minutes?

I had a similar problems with a tower and a laptop and never really "resolved" my DNS issues with Windows XP, it was constantly doing strange things. I solved it by going out and buying a Siemons $10US Internet Gateway router and setting both PCs to DHCP and plugging them into a port (has 5) Then plugging the Gatway Router into my Cable modem. Wish I would have done that along time ago. Now I plug and unplug devices all the time and never have a problem. Even my PS2.

Ok back to windows... to see the lease expiration date c:\ipconfig \all
This will show your lease.

Quote:

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Originally posted here by c0re
tytytytytyty!

lmao mittens my screen is scrolling crasy lines of ip address how do i determine which are bad or not?

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Hehe.. look at source and destination addresses, ports and the data they carry .. You'll need to set options as to how much or how little information you want windump to collect. (BTW, this is a good way to understand a little more as to how NIDS work.. :).. as well as TCP/IP). What you want to look for is which device is sending a DHCP release packet. (My guess).

Interesting Solution by RoadClosed. I personally use a NetGear router. What I'm not sure of is why your Dlink router is releasing the IPs so quickly.

Have you checked Dlink to see if there is any mention of similar problems for other people?

thank you road closed i just might do that i have already spent over 300 dollars so that my wife could go wireless but i ended up making it hardlined because i thought that was the problem. thank you msmittens one more time you all are life savers. for some reason after i did what you told me to do i havent had any problems. but i am not always home so i cant check [dangnabbit] thanks so MUCH for the help ms mittens, framework and roadclosed. =]

ok it just happened my wife got online after i did on her laptop and WHAM! network connection unplugged! what am i doing wrong?

Are you using the IPs being given by Comcast or by the router (internal private addressing?)?

im using the ip's from the router. 192. etc msmittens

last night after the disconect i put certain programs we both use into special applications. that way we can share it or so the tut said so i am waiting now to see if i am right or wrong

do you think dlink will take my router back its in 50000 pieces? lol

I would delete all entrys in all the desktops for network connections. I have had 2 instances of a network connection that caused problems. Especially if they use the same nic, blast those out on each one. Then run the wizard to set them up for DHCP.

I have also had problems with a gateway router asigning an ip adress to one of the desktops that was the same one being used for the default gateway! POS. So look at that and make an adjustment to the gatway so it's way up there like 192.1.10.240 or something.

And finally, this is like finding a needle in a haystack. You can go to both boxes, get a screen shot of your router config, then dump each pc config to a text file and post it here. Cover up your private address if you like, but we need to see the internal network configs. If your super paranoid don't worry. They are standard configs and we all know them already. ;)

Use the command line redirection commands to dump it to text file.

First Change to C:/

That will makes it easier to find the files. Other wise they go to your default profile directory

Then Type ipconfig /all >comp1.txt

This will dump your complete ip config to a file called comp1.txt and you can past it here.

Then two Comp2.txt etc.

Windows IP Configuration



Host Name . . . . . . . . . . . . : c0retek-z0pv2k8

Primary Dns Suffix . . . . . . . :

Node Type . . . . . . . . . . . . : Unknown

IP Routing Enabled. . . . . . . . : Yes

WINS Proxy Enabled. . . . . . . . : Yes



Ethernet adapter Local Area Connection 2:



Connection-specific DNS Suffix . : xxxxx.xx.comcast.net

Description . . . . . . . . . . . : Realtek RTL8139 Family PCI Fast Ethernet NIC #2

Physical Address. . . . . . . . . : 00-40-05-88-0F-9E

Dhcp Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

IP Address. . . . . . . . . . . . : 192.1xx.0.100

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : 192.1xx.0.1

DHCP Server . . . . . . . . . . . : 192.1xx.0.1

DNS Servers . . . . . . . . . . . : 192.1xx.0.1

Lease Obtained. . . . . . . . . . : Thursday, June 26, 2003 4:07:48 PM

Lease Expires . . . . . . . . . . : Thursday, July 03, 2003 4:07:48 PM
i hope this helps man.

Which Dlink router is it? (exact name)

it is a di-754 5 gig wireless router called air pro

you all might smack the beegesus out of me but this is what i did.i have to get a new a drive so i didnt make a setup disk for the other computer.i just went through the network configuration settings for each pc i hope that isnt what is doing it. i may be wrong but i have really thought about what you've all said and that could be the answer? i am so sorry if that is what it is.

Quote:

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Originally posted here by c0re
it is a di-754 5 gig wireless router called air pro

you all might smack the beegesus out of me but this is what i did.i have to get a new a drive so i didnt make a setup disk for the other computer.i just went through the network configuration settings for each pc i hope that isnt what is doing it. i may be wrong but i have really thought about what you've all said and that could be the answer? i am so sorry if that is what it is.

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Did you change the network settings for each pc so they each had a unique IP address?

I am getting kicked off the internet too. I have windowsME on a Dell pentium4. Do you know what the problem is. If so explain simply. I'm a newbie.

i thought it did it automatically? DOHHHHHHHHHHHHHHHHHHHHHHHHHH

ROFL!!!

elf, in c0re's case he had the same ip on all his machines. So when one connected and then the other did, there was a conflict on the network that would cause one or both to disconnect.

That may or may not be the same issue as you.

ms mittens i am soooooooooo sorry i wasted your time and road closed but thank you for the help so much

Dude, you didn't waste my time. I see this, you worked hard at the problem, and learned a valuable thing. Now I am betting, you will always check that issue when a problem pops up.

Kudos cOre, as for elf - did you read the thread and go through all the steps that cOre did?