Nexus Status

All Systems Operational

Web interface Operational

REST API Operational

Lab Operational

Hardware Operational

Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

Past Incidents

Nov 20, 2025

Update compute nodes

Completed - The scheduled maintenance has been completed.
Nov 20, 13:56 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 13:00 UTC

Scheduled - We need to upgrade the compute nodes on which Nexus runs. There will be a scheduled maintenance of approximately 60 minutes on Thursday November 20th at 13:00 UTC.

During this maintenance window, Nexus Lab (Jupyterhub) servers will undergo an automatic restart.

The web interface and REST API should not be affected. The hardware is also not affected.
Nov 17, 10:41 UTC

Nov 19, 2025

No incidents reported.

Nov 18, 2025

Degraded performance

Resolved - This incident has been resolved.
Nov 18, 16:17 UTC

Monitoring - We've deployed updated code now and the performance seems to be improving. We'll keep this incident open a little longer while we monitor and confirm.
Nov 18, 15:54 UTC

Update - We're working to deploy fixes for this but unfortunately we are being affected by the ongoing cloudflare outage (https://www.cloudflarestatus.com/).

Apologies again for any inconvenience.
Nov 18, 14:06 UTC

Identified - Apologies: an update to Nexus has led to degraded performance when processing jobs with Quantinuum Systems backends. Job submission is still working, but job processing and result delivery is very much slower than normal at the moment.

Due to the load on subsystems, the Nexus APIs and web interface are also running much slower than normal.

Apologies again for any inconvenience and we're working to fix it asap.
Nov 18, 12:16 UTC

Nov 17, 2025

No incidents reported.

Nov 16, 2025

No incidents reported.

Nov 15, 2025

No incidents reported.

Nov 14, 2025

No incidents reported.

Nov 13, 2025

No incidents reported.

Nov 12, 2025

No incidents reported.

Nov 11, 2025

No incidents reported.

Nov 10, 2025

No incidents reported.

Nov 9, 2025

No incidents reported.

Nov 8, 2025

No incidents reported.

Nov 7, 2025

No incidents reported.

Nov 6, 2025

No incidents reported.