I have a Macbook Pro (v 10.6.8) and Ideos, google, smart phone.  I know, as the way it is described, how to create hotspot on my macbook. I have created it many times and that was connected and used by my smart phone as well as some of other friends smartphones, like htc android etc.

Recently, came to know that my our, me and my friend’s, mobiles are unable to connect the wifi created by THIS MAC. My mobile can use any other wifi available in university as well as other cafe’s etc.

I am trying to create the wifi network, the same way as before. However, I failed every times. As someone suggested, I changed the channel number from 11 to other numbers as well as to Automatic, but no good sign.

Your help and comments are valuable. Thank you!

 SOLVED! —–> All you have to do, when creating network, is so CHANGE the channel.  As long as its not on channel “11″ (default) it works as smooth as it did with any previous osx. Weird? Yes! Works? Yes!

Don’t forget to activate internet sharing in Sys Pref

If its not working, try by following these steps.

Step by step:
Turn your mac into a wireless router for your iPhone (or other device)

1/2: Enable Internet Sharing:
- open System Preferences
- Select “sharing” from Internet&wireless menu
- In the left column, almost at the bottom, make sure “internet sharing” is selected.
- On the right. next to “share your connection from” choose the connection the MAC has with the internet (wireless:wifi cable:ethernet)- Where it says, “To computers using” select “Wifi” (or “Airport”) - Here you’re done. exit system preferences2/2 Creating networkNow you need to create a wifi network for you iPhone to find and connect to- click on your wifi icon, in status bar (on top of the screen)- select “Create Network…” (if this option doesn’t show, try turning wifi on/off. Now it should be there- Choose a name for this particular connection (this is just what shows when looking for available wifi networks on your iPhone (i.e. “MacbookRouter” or whatever”-Change the channel from 11 to 3! (or any other number, along as its not 11- Add a password. Really important to do. the 40 encrypt needs a 5 letter or 10 digit password. the 128- need a13 letter or 26 digit. I would always suggest to go for the 128-bit one. Because its more secure and once you’ve entered the password once, it will remember your device anyway.- click “Create” and you’re doneNotice the wifi icon in the status bar now changed. It should be the same form, but grey, with a little white monitor in it (or whatever its supposed to be)Now, theres left to do, is take your iPhone and look for wifi spot. The name for this router (macboocrouter) should be selectable now. Enter the password you just made upNow, if you did everything correctly and god doesn’t hate you too much, you should have internet on your iPhone now. NOTICE that this connection does not always shows itself as you are used to (the umbrella shaped wifi logo on your phone. So the best way to check and make sure the connection is good, is to turn of Data and 3g on your phone. If you still have internet on your phone then you did everything right. Now enjoy the rewards of having to read all this text, haha.Enjoy!Mathew(I used a late 2008 MacBook Lion osx conn with ethernet, an iPhone 3gs (jailbroken 5.0)