WLAN Light always flashing - broken into?

I have a Dlink DI-524 wireless router. I noticed yesterday that its WLAN light was always flashing even if all the wireless devices at home is not connected wirelessly and is turned off.

Is this a sign the system's been broken into? How do I check if someone is in my network. By the way security enabled is WPA-PSK (TKIP).

Thanks.

 

You should be able to logon to the router. I believe on the DL524 you can check what is currently linked to your router through the Status tab or the Tools tab. There should also be a log generated and accessible at one of those tabs. I use Linksys myself, but they all have similar administration.

I would do this with all your known connections off and when both the WLAN and WAN lights are blinking. That USUALLY indicates data transfer activity. But I guess it could also be just polling.

 

Thanks jglen490.

I checked the logs and the wireless tabs in the status section of the DLink DI 524.

This is an entry in the log - "Unrecognized attempt blocked from 192.168.1.1:137 to 192.168.1.3 UDP:137" - this came out 3-4 times

In the "connected wireless client list" only the MAC address of the lappy I'm using is in the list. Can I assume my network's fine and have not been broken into?

Thanks.

 

Should I be concerned?

Thanks.

 

If there are only 3 or 4 entries, I don't think you have any worries, especially since the log indicates this is from within your local network and not an attack from an outside IP address. Still, you could change the SSID and turn off SSID broadcasting, then update the SSID on all of your computers.

 

No, don't be worried.

 

If the entries are your computers, nothing to worry about. If NOT you need to increase/change your security. You can use netstumbler to see any computer or AP is within range. It will identify the AP's by mac address and SSID if present.

It is quite common when new persons get's a NB or new wireless device to try to connect to anything in the clear. There are still a lot of persons just buy them, plug them in and start using them.

 

I've been checking the logs regularly the past 2 days just to ensure that only wireless devices at home are connected. You guys are right...nothing to worry about.

Thanks.

 

WLAN's usually blink when there's no traffic activity. They blink if there's WLAN activity at all say when the wireless network card is just Polling the AP to see if it's still there, that's just the nature of WLAN it has to keep checking to see if the AP is there if not it scans for a new one.

This is to assume WLAN means wireless and not WAN.

 

Thanks for explaining Polling tebore. Yup WLAN means wireless.