Google this: “android stuck on obtaining IP address“.
Whoa. 106,000 hits? Looks like my complaint about the Galaxy Tab not connecting to my home router is a real one. But the good news is, there are a couple of easy solutions that don’t require “rooting” the device.
One, there’s a built-in app called “allshare.” When you’re stuck, fire it up and give it a minute. It will reset your IP address from the DHCP server, and you should be good to go.
Alternatively, use a static IP. Usually your router will be handing out addresses in the form of 192.168.0.xxx or 192.168.1.xxx. If you have a running PC on the network, go to the command line and key in “ipconfig /all”. Use these results to set up a static IP on your handheld. Look for lines:
IPv4 Address . . . . 192.168.1.3 (for example)
Subnet Mask . . . . 255.255.255.0
Default Gateway . . . . 192.168.1.1 (for example)
DNS Servers . . . . xxx.xxx.xxx.xxx
Open your wireless settings, and from the “Advanced” screen (you get it when you touch the bottom left button below the screen) enter in the appropriate items. Give your handheld a nice high IP to avoid conflicts; 192.168.1.73 or something.
It’s a few extra steps, but you’ll be running again. The settings will hold, too, when you go back to the home network after being elsewhere.
Give your device a high IP address — 192.168.1.79 or something — to avoid conflicts.