Strange router problem

ben16

ben16

ben16

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Joined
3 Jul 2007
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165
I have a PC (wired) and a laptop (wireless) connected to my D-Link router. Under the lan clients page of my router page the laptop is showing up twice. Once as 192.168.1.3 (which is what it's always been) but also as 192.168.1.65. The internet also seems to be going much slower than usual.

It's not someone hijacking the connection as the Host Name and mac address are the same. I'm using WEP security.

Can anyone help me out on this?
 
If you disconnect the laptop and restart the router, do the two entries disappear? If you connect the laptop, do you get both again?

WEP is not secure in the slightest, and the MAC addresses being the same means nothing - they're easy enough to spoof.
 
If I turn the laptop off the two entries dissapear. When I turn it back on again only one comes up initially but after a while the other entry comes back.
One is coming up as a static I.P and the other as a dynamic one.
 
Don't suppose your laptop has two wireless network cards does it? Mine does as I've added a PCMCIA one as well as the standard internal one.
 
No and it hasn't always done this. Sometimes just one is there and the net works fine, other times both appear and things are slow and some sites don't work at all.
 
It does WPA.
I'm sure it not a security issue though. Like I said when I turn the laptop off the two entries dissapear and the net speeds up.
I think it's a problem with the router itself. I'm always having to restart it when it stops working.
 
It might not be a security issue, but one less network using WEP is never a bad thing.

Having two IPs with the same MAC is almost certainly going to screw things up. Is it the same with a different router? Can you ping the other IP?
What does start, run, cmd, ipconfig /all say - there should be two network cards, one with each of the two IPs.
 
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