WIFI NOT WORKING!

So I'ev have rogers wifi internet for a few weeks, its worked perfect, woke up this morning and no wifi... the power did clicker last night maybe thats part of it. My Imac is plugged into the wireless modem via ethenet and it works fine. The wireless light on the modem is solid green as it should be, but neither my computer or Iphione can detect the wifi signal like they did before.... what happened? the modem is the DCP3825. I know what my network was called (my last name) its just not there anymore, tried resetting modem a few times, googled it to death, read the owners manual just cant figure it out....