WiFi in Asia works on iPhone but not Macbook Pro
I am currently traveling around Asia and I have my Macbook Pro and iPhone with me. I have had no problems connecting to WiFi networks with my iPhone (currently typing this message with it on my hotel's WiFi). However, my Macbook Pro has had endless issues. Sometime it works, but often it doesn't. The most common issue is that it gets a self assigned IP address and can't connect to the internet. It can usually find and connect to the WiFi network, but from there things get dodgy. As I said, it sometimes works fine. I would say it works on 1 out of every 3 networks that I try.
So far I have tried the following:
Renewing DHCP Lease (without client ID and with made up client ID)
Disabling firewall.
Turning off wifi and them back on.
Restarting computer.
Deleting WiFi service and recreating.
Creating new "location".
Repairing permissions.
Using different login account.
Manually entering TCP/IP settings copied from iPhone.
"Forgetting network" and rejoining.
None of the above has helped, except that one time renewing DHCP lease with a made up client ID did the trick.
I have the summer 2012 MacBook Pro 13" with OS 10.7.5 installed.
Any help would be very appreciated. :)
-Shawn
MacBook Pro (13-inch, Mid 2012), Mac OS X (10.7.5)