Azure Stack Service Failover - Impact to XAG, XDH and DFV services

Scheduled for Sep 19, 02:00 - 16:00 BST

Scheduled

Please be advised of a planned upgrade to the Velonetic Azure Stack in the Primary Data Centre. As part of the change, Velonetic will be failing over the XAG, XDH (back-end only) messaging services and DFV applications to the Secondary Data Centre on Saturday 19 September 2026. The applications will remain live in the Secondary Data Centre for the duration of the upgrade process.

Services will be brought back to the Primary Data Centre on Saturday 24 October 2026.

Impact to customers
The XAG, XDH and DFV services will be unavailable between 02:00 – 16:00 on Saturday 19 September 2026.

Reminder
Please ensure that the XAG DR IP Address is present in any Whitelisting you have enabled in your network security.

Primary DC (Current Production) - XAG Source IP Address 159.101.236.3 # This is the address from which XAG is sending data back to customers.
Primary DC (Current Production) - XAG Destination IP Address 159.101.237.41 # This is the target IP address that customers connect to when accessing the system: (https://xag.xchanging.com/wcl/inbox/dri.aspx)

Secondary DC (DR) Will be live from 16.00 Saturday 19 Sep 2026 – 16:00 Saturday 24 Oct 2026 - XAG Source IP Address 159.101.240.3 # This is the address from which XAG is sending data back to customers.
Secondary DC (DR) Will be live from 16.00 Saturday 19 Sep 2026 – 16:00 Saturday 24 Oct 2026 - XAG Destination IP Address 159.101.241.41 # This is the target IP address that customers connect to when accessing the system: (https://xag.xchanging.com/wcl/inbox/dri.aspx)

Should you have any questions regarding this communication, please email the Velonetic Service Centre service.centre@dxc.com or call 0870 380 0830.
Posted Sep 10, 2026 - 11:47 BST
This scheduled maintenance affects: Messaging Gateways (XAG, XDH / XFG), Repository (DRI Upload, DRI Download, DRI Search, DRI Notify, Outbound DRI), and Claims (DFV (ECF2), Writeback - Claim Notify, Writeback - Claim Retrieve, Writeback - Claim Respond).