my android phone keeps asking “Sign-in to WiFi network” even if WPA/WPA2 is already authenticated I'm trying to connect to a DLink Router protected with WPA/WPA2. It's our home router and I can connect perfectly to it from laptops and desktops, Linux and Windows alike, even for my friends mobile(Android) it connect smoothly. But when I connect to it using my Android phone (Motorola Droid), I am always notified to "Sign-in to WiFi Network" after I've entered the WPA/WPA2 password. Tapping into the notification loads my ACT logging page, and after entering my credentials it says you are now logged in, but when I try to open any other site or even refresh this page it again ask me for my ACT credentials. Other apps that connect to the internet do report connection problems.

I checked my router setting, in which I have added my mobiles MAC address also in Interface setup->wireless->wireless MAC address filters, but it is not working.
I have made encapsulation ISP as PPPoE and have entered my password there.
Still not able to connect in my phone.

I am able to connect my phone in all in my friends place so for sure thire is no problem with my phone. what else is required..?
I fixed mine by putting a static IP. I chose a IP in my network range and it work