If there is an issue with the Internet connection in your office you can connect your laptop to your phone and use its data connection.
Open the ‘Settings’ App.
Click ‘Personal Hotspot’.
Switch on the ‘Allow Others to Join’ option.
To connect your PC to this hotspot search for the WiFi name shown on your phone screen.
The password will be displayed as a random mix of letters and numbers. Its good practice NOT to change this.
Remember to switch tethering off when finished to prevent incurring further, accidental data charges.