Due to technical problems, the Leiden University website is temporarily unavailable.

Due to an unexpected service disruption students and staff members might experience issues logging into uSis. During this issue you may find you are unable to log into uSis, encounter a 503 service unavailable error, or experience extreme slowness while logging in. The supplier of uSis is actively working to resolve the issue. We apologize for any inconvenience caused.

At this moment some users are experiencing problems with setting up an EduVPN connection. We are currently working on a solution.

Currently, you may experience problems logging into different services.

We are currently experiencing multiple problems with various services which means that it is not always possible to log in. We are working hard to restore services

There is currently a global outage at Microsoft, as a result several services including Microsoft 365 are not functioning correctly . They are currently working to resolve this issue.

For some users, there may be a problem with signing in via push message. However, logging in can be done via an email message. A solution is currently being worked on. We do not recommend resetting push notifications. This will automatically function as you are used to.

Due to a disruption at our internet supplier, we are experiencing that several services are not externally accessible. Some of the affected services include: USis, our ticketing system and various video services.

Currently, the Leiden University staff website is unavailable.

We are currently experiencing a disruption with EduVPN, so users may be experiencing several issues. We would like to let you know that we are fully committed to identifying and resolving this issue. We will keep you updated on the progress and will provide updates as soon as we have more information.