My samsung galaxy player 5 does not connect to the internet, but apparently connects to my router I have a cisco  linksys E1500 router, secured with WPA/WPA2 PSK. My samsung galaxy player 5, fresh out of the box, conencts to it but cannot access the internet. Based on this thread, I made myself a static IP of 192.168.1.12. It still doesn't work. This other thread talks about MAC cloning, but I'm not sure how to do that

EDIT: I remembered we have a messed up router/provider. We have to use DHCP addresses only, and set the DNS servers manually. How do you do this?
I'm afraid that's something the Android system does not provide by default. But you might take a look at e.g. Zakus WiFi Profiles, which lets you create profiles by access point (Android itself has only global settings here, which would apply to all WiFi APs you connect to):

 

As I never used this myself, I'm not sure whether it only deals with static IPs, or can handle DHCP with special settings as well. The app description doesn't explicitly state this.

Alternatively, IP Manager might prove helpful. It says to manage different IP profiles for different access points, but unfortunately gives no closer details (and the screenshots don't tell that much). Still worth a try, as it sounds promising.