You see an error immediately upon starting Conga Composer.
The Lock IP Address setting is enabled. The setting must be disabled for hosted Salesforce AppExchange applications.
To fix the issue:
- Go to Salesforce Setup > Administration Setup > Security Controls > Session Settings.
- Ensure that the Lock sessions to the IP address from which they originated field is NOT checked.
- Click Save.
- IMPORTANT! You must restart all instances of the browser for the setting to take effect.