# TROUBLESHOOTING

- [Changing the port of Xopero ONE Management Service](/xopero-one-en/troubleshooting/changing-the-port-of-xopero-one-management-service.md)
- [Fetching device logs](/xopero-one-en/troubleshooting/fetching-device-logs.md): This article explains how to fetch device logs from Xopero ONE for self-troubleshooting or when submitting a support ticket for technical assistance.
- [Handling errors in Xopero ONE](/xopero-one-en/troubleshooting/handling-errors-in-xopero-one.md): This article describes how to troubleshoot and handle errors in Xopero ONE.
- [Enabling HTTPS for on-premise Xopero ONE installation](/xopero-one-en/troubleshooting/enabling-https-for-on-premise-xopero-one-installation.md)
- [Restarting Xopero ONE agent service](/xopero-one-en/troubleshooting/restarting-xopero-one-agent-service.md)
- [Changing the password reuse policy](/xopero-one-en/troubleshooting/changing-the-password-reuse-policy.md): This article describes how to change the unique password policy in Xopero ONE Management Service.
- [Troubleshooting Azure DevOps permission errors](/xopero-one-en/troubleshooting/troubleshooting-azure-devops-permission-errors.md): This article explains how to identify and resolve common permission-related errors in Azure DevOps by interpreting API error codes and messages.