# Troubleshooting Stalled Cloud Login Screen on the MiSeq i100 Series

**Background**

The MiSeq i100 Control Software allows users to leverage either BaseSpace or local Control Software accounts to login to the instrument. If the instrument is configured to upload run data to BaseSpace, the default behavior is to load the Cloud login screen before the local login.

If the network connection is disrupted or the instrument is disconnected from the internet, the Cloud Login screen can stall and prevent user login. This typically results in either a blank login screen, or a screen that shows 'Connecting to authentication system' without resolving to the username and password input fields.

**Troubleshooting Actions**

*Mitigation for Temporary Network Outages*

If the instrument is expected to have an internet connection but the connection is temporarily disrupted, the Control Software attempts to load the Cloud Login screen instead of the Local Login option, temporarily preventing user access.

1. If the Cloud Login screen fails to load, **disconnect** the ethernet cable from the **LAN1** connection on the back of the instrument.
2. Wait 1-2 minutes, then attempt to use the **Local Sign-in** option to login to the Control Software.
   1. Once network connectivity is restored, plug in the ethernet cable into **LAN1** to restore network connectivity on instrument.
3. If **Local Sign-in** option fails after unplugging the **LAN1** connection, power cycle the instrument.
   1. While instrument is powered down, re-connect the LAN1 connection.
   2. See Knowledge Article [How to Power Cycle the MiSeq i100 Series](https://knowledge.illumina.com/instrumentation/miseq-i100-series/instrumentation-miseq-i100-series-reference_material-list/000009277) for additional details, if needed.
4. After initialization, login to instrument Control Software using either **Cloud** or **Local Sign-in** options.
5. If login is successful, run **Export Logs - Medium** and contact [Illumina Tech Support](https://www.illumina.com/company/contact-us.html) for file upload link.
   1. See Knowledge Article [How to Export Logs on the MiSeq i100 Series](https://knowledge.illumina.com/instrumentation/miseq-i100-series/instrumentation-miseq-i100-series-reference_material-list/000009265) for additional details.

*Resolution Actions for Disconnected Instruments*

If the instrument is not expected to connect to the internet or upload data to BaseSpace or Proactive, see the following actions to turn off Cloud connectivity options.

1. If the Cloud Login screen fails to load, disconnect the ethernet cable from the LAN1 connection on the back of the instrument.
2. Wait 5 minutes, then use the **Local Sign-in** option to login to the Control Software using a local **Administrator** user.
3. From the Control Software **Home** screen, select the dropdown menu in the top-left corner, then select **Settings**.
4. Select **Cloud Settings**.
5. On the right, de-select any options for **Cloud Monitoring** or **Cloud Storage**.
6. On the left, de-select the option to **upload instrument health metrics to Illumina**.
7. Under **Hosting Location**, select the **blank entry** at the top of the list.
8. Select **Save**.

For additional details on disabling Cloud Login feature, see the Knowledge Article [How to Disable Cloud Login Feature on the MiSeq i100 and NovaSeq X Series](https://knowledge.illumina.com/instrumentation/general/instrumentation-general-reference_material-list/000009462).

If the Login screen does not load after several attempts or the mitigations listed above do not resolve the issue, contact [Illumina Tech Support](https://www.illumina.com/company/contact-us.html) for further assistance.

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| *For any feedback or questions regarding this article (Illumina Knowledge Article #9391), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000009462%20-%20Instrumentation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |