NOTICE DATE: May 17, 2022

NOTICE TYPE: M-A051722-01 Operations

SHORT DESCRIPTION: ERCOT Vendor Performing WAN Maintenance

INTENDED AUDIENCE: All WAN Participants

DAYS AFFECTED: Tuesday May 24th 2022 20:00 - 23:59

LONG DESCRIPTION: ERCOT's Vendor will be performing maintenance on ERCOT Taylor HQ WAN equipment and this will result in an impact to the Taylor ICCP and XML traffic to/from all WAN Participants.  During this maintenance window, all WAN Participants should utilize ERCOT's Bastrop HQ WAN connection.

ACTION REQUIRED: During this maintenance window, all WAN Participants should utilize ERCOT's Bastrop HQ WAN ICCP and XML servers/systems.

CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at ClientServices@ercot.com.

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dg