Internet & Play Store problem on Micromax Yureka on Lollipop

Yesterday, I got an update to upgrade my Micromax Yureka mobile to Cyanogenmod 12 which upgrades the Android version to Lollipop.

After this upgrade, following issues came into existence:

• Internet is not working


• Play store is not working


• Apps are not downloading

These issues didn't occur on KitKat. Please give me a solution.