I am using a DLink DI-624 rev. C router with 2.70 firmware at home. There is one desktop PC wired to the router and two laptops in the house that connect wirelessly. I also have a Dell Axim that I connect wirelessly on occasion. The other day I noticed my log filling up with many entries stating "Wireless PC Connected." This entry would show up sometimes every 7 seconds, other times, over 4 minutes would elapse before another entry. I rebooted the router (and lost my logs) but that 'wireless PC' would connect again within minutes. I had WEP encryption running but I did not recognize the MAC address for this 'wireless PC'. I have now enabled MAC filtering and only allowed the home PCs and Axim access to the router. I will also change the WEP from 64 bit to 128 bit and change the key. I cannot switch to WPA without cutting my Axim off (it does not support WPA). Now that unidentified PC does not show up as being connected. I had run Shields Up! before this and no ports were open. My questions are:
- This may be obvious, but did one of my neighbors manage to figure out my WEP code and get into my network? I am assuming that since the log said it was a wireless PC, it had to be someone within range of the router.
- Why the frequent connections? Was it possibly a poor connection and the neighbor just kept connecting over and over?
- I never saw any "DHCP lease IP ### to" information for the wireless PC. I do see that when one of the authorized PCs logs on. What does that mean? Did that help me in any way when the unauthorized PC logged on (the fact that no DHCP was leased to the 'wireless pc')?
Sorry for the basic questions. Thanks for any help.