Some Sort of Conflict between Our Computers?

[yriiz]

Hi!

For the past four months - if not more - I have been struggling with the most annoying of problems. We have our desktop, the computer I use, connected directly to our Linksys router (Wireless-G 2.4 GHz), as per our ISP's set-up; my sister recently, within this four month time window, bought herself a new laptop. (My mother also has a laptop, but it never interferes with my connection at all. Stating this as a side-note to kind of clarify) Now, whenever my sister opens her laptop and loads a page that's connected to the internet in any way (web browser window, online game client, etc), it will kick my internet off. It does not, however, affect my mom's laptop.

I read up on 'IP Conflicts' a while ago and found that our computers DID have the same IP. I've tried changing my IP, I've tried changing her IP - I've tried everything (I think...), and still the problem persists. I'm thinking I didn't do something right, an IP conflict was not the problem, or it was not the ONLY problem. I'm not a genius with networking or the like, and have no clue what dns and all of that is, so any thorough assistance would be lovely; I honestly am new to all of this and don't know one thing from the next, not to mention I have absolutely no idea what this or that means.

I have also tried making sure our IPs are issued automatically, which I do believe they are.

In case this is of some importance: I'm running Windows XP SP2 on my computer and my sister is using Vista, though I'm not sure of any specifications other than that as far as her computer's operating system is concerned.

Thanks in advance for any type of help, it's very appreciated!

[lorjack]

Open the command prompt (start > run > cmd) type:
ipconfig /all

post the results for both computers. I take it that the router is giving out IP addresses. Check the configuration of DHCP on it.

[Mason0704]

i would imagine that the router dhcp table is to low, you should try checking and/or increasing the range of adreeses that the router will give out.

you have already tried making each computer use a static ip? and that didn't work?
just a thought

[johnwill]

Repair duplicate IP address on network issue.

1. Turn off everything on the network, ALL the machines and any other network device like network printers and NAS drives.
2. Turn off the router and modem.
3. Turn on the modem, wait for a steady data light.
4. Turn on the router, wait two minutes.
5. Turn on the network devices and computers, one at a time.

This issue is usually caused by resetting a router without resetting all the network connected devices.

Another issue that will cause duplicate IP addresses is assigning static IP addresses to devices that conflict with the router's DHCP address range. If you require static IP addressed devices on the network, they should be configured to be in the same subnet but outside the address range defined for the DHCP server.