Oh the danger of a public password for your wi-fi
Yesterday afternoon, just before home time a few students couldn't log on to some laptops with wi-fi. They were getting a 169 IP address. I quickly gave up working it out as I had places to be.
This morning I came back in and looked at our DHCP and we had run out of addresses!
It then struck me that just before Christmas we had an iPad trolley trial and I had created a new WLAN just for the iPads that was locked down to mac address, but during one science lesson at the beginning of the trial a few ipads didn't take the profile so did not have the password for wi-fi. I wrote it on the board for the lesson and thought no more of it.
Anyway jumping back to today I had over 100 students phones and ipods connecting to it!
Keep in mind that although they were connecting to it they were not getting on to the wi-fi as it was locked down to mac address!
So anyway back to normal business now.