Hold down the power button and select Restart. Restart PhoneĪ simple action as restarting your smartphone could fix any issue with your device or its app. If it's just Skype, try other troubleshooting methods below. You could also try to use another app with the Wi-Fi to see whether the issue is peculiar to Skype alone or system-wide.

If Skype works with mobile data and not with Wi-Fi, you should check that your router is indeed transmitting data.

If Skype (and perhaps other apps) only works on Wi-Fi, you should check out this guide to learn how to get it to work with mobile data. What internet connectivity option is your device hooked to? Are you connected to the internet via mobile data or a Wi-Fi network? You should try to switch from one network connectivity option to another.