Planned Maintenance for EMEA WSS Web Isolation Customers - July 11, 2021

Sunday, 11 July 3 hours

The scheduled maintenance has been completed.


Scheduled maintenance is currently in progress. We will provide updates as necessary.


On July 11, 2021, the Web Isolation team will migrate the Web Isolation add-on service for EMEA Web Security Service (WSS) customers from Amazon Web Services (AWS) to Google Cloud. When this migration is complete, egress IP addresses will have changed.


  • Start time: July 11, 2021, at 14:00 UTC
  • End time: July 11, 2021, at 17:00 UTC

    Impact Only Web Security Service customers who use the Web Isolation add-on service will be impacted. If you do not have Web Isolation, you can disregard this communication.

    Web Isolation customers can expect minor service disruption during the maintenance window. Web applications may require users to reauthenticate during or following the maintenance window.

    Customer Action Be aware of new egress IP ranges for your region. Third-party applications who restrict connections by source IP must be updated to accept connections from the IP address ranges listed below:

  • Brussels, Belgium -
  • London, England, UK -
  • Frankfurt, Germany -

    Be aware that existing Amazon Web Services (AWS) IP addresses will be decommissioned at the conclusion of the maintenance event:

  • Europe (Paris) -,
  • Europe (Frankfurt) -,,
  • Europe (London) -,

    More Information For more information, see Web Security Service (WSS) ingress and egress IP addresses and Web Isolation Cloud Ingress and Egress IP Addresses.

    If you are experiencing issues, contact Technical Support.

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