If you're having problems with connections, review this information first:
Then, if you’re still experiencing problems, try resetting all network settings:
- Go to Settings > System > Advanced > Reset options.
- Touch Reset Wi-Fi, mobile & Bluetooth > RESET SETTINGS.
- If you're using dual SIMs, select the SIM to reset for mobile data settings.
- Touch RESET SETTINGS.
- Try to reconnect to Wi-Fi, cellular data, and Bluetooth, or try to share your internet connection again.