Hi I have just bought a brand new 24 inch iMac with a Time Machine which I use to connect to my DSL modem/router to go on the Internet. The problem is that when I power up my MAC from shut down, each time the ICON in the MENU BAR top right corner shows that my AirPort connection is only 3 bars and what's more I cannot access the Internet or check emails as it is really slow (I have to wait 5 minutes for google to load). I then click on the Airport signal strength icon in the menu bar and select 'Turn AirPort Off' then I immediately click the same icon again (now empty with no signal) and select 'Turn AirPort On'. NOW I GET ALL FULL 4 BARS AND PERFECTLY FAST INTERNET CONNECTION - What the heck is going on here?? As far as I know all system updates have been made both of my operational system and the firmware of the time machine. I am using WPA 2 Personal Security. My Channel selection in Time Machine properties was at first Automatic, so I thought that I may solve the problem by changing it - so I changed it to Channel 7. Did not help. Connection Sharing is in Bridge Mode (between Time Machine and Router). Not sure what else to do. The time machine is only 1 metre (or meter, if you are in the US) away from the iMac. My partner also has the same iMac placed just opposite mine on the same desk, same distance to time machine and she does not have this problem. Can anyone help pls? Thanks in advance.