flashflood, I can't thank you enough for your detailed explanation on setting up my guru for infrastructure mode. I have an iMac and use the Time Capsule (airport utility), I followed your step by step instructions and successfully have my guru working using the infrastructure mode. I can now use my iPhone to monitor from anywhere.
I wish I came across your post earlier, I had 2 pork butts that cooked 19 hours on my BGE for a 4th of July party. I had to work the day they were finishing up, so my wife was left in charge of the babysitting the cook. Though many phone calls all turned out excellent but having the infrastructure mode working would have been a great thing. I want to thank you again for your time and your post.