some progress
Hi, I am quite new to Mac's world (I own MBA just for 10 days or so) but let me share some details about my progress in this issuse .. and please sorry for my English
I own Iphone (4, OS 5.x) and MBA (Lion). I have tried to localize my Iphone and MBA via Iphone's app Find My Iphone .... everything was set as it should be .. as far as I know ... it was OK for Iphone but not for MBA. Both devices use the same Wifi for Internet connection. Meanwhile Iphone was detected quite correctly, for MAC I got message "can not be detected".
I supposed the problem was somewhere in my Wifi (maybe my location is not properly set, I don't know .... ), but for my surprise iStumbler app was able to localize my wifi quite exactly... Strange. iStumbler is able to localize my position ... Iphone did the same job, but MAC did not ...
Then .. I tried to use Tethering instead using my home Wifi - sorry maybe I don't know the proper English terms - it means use my Iphone and its 3G abilities to connect my computer to Internet .. something like a local Wifi point. Iphone is connected to Internet via my 3G provider and it provides Wifi and MBA detects it and use Iphone for its Internet connection.
Immediately after I did the first tethering connection, I was able to see and localize my Mac. I got proper location, was able to see it on the map, I am able to send message to it etc .... even I switched off this tethering service and went back to my home network setting, Mac is still visible and available for "Where is my .. " service. I don't know what actually happened somewhere in CLouds, but something changed and everything works fine (for now)
TW.