hmmm my apologies for bringing up sort of an old thread, but I'm running into a wall...

Thanks to the excellent advice in this thread I was able to join my home network (One iMac sharing an Ethernet linked router connection over airport/wifi to two other iMacs), but I can't connect to the internet. I do not have any firewalls enabled and the other iMacs on the network connect to the 'net fine, so I know it's not a computer setting. I've messed with all the settings for the access point on the tablet and nothing seems to work. Any help would be much appreciated