Errors affecting merchants switching via FDI XTP

Please see a further update from Fiserv below:

The XTP Transaction Processing incident is resolved and client impacts have ceased.

We thank you for your patience and apologise for any inconvenience this event has caused to your business.

Transactions processing via FDI XTP are now processing successfully. We are still waiting on Fiserv to confirm the issue is resolved, and will provide further update once they have.

Please see an update from Fiserv below:
Fiserv is currently investigating an intermittent service disruption to XTP Transaction Processing.
The scope of impact is unconfirmed at this time, however being investigated within Fiserv.

We will continue to keep you updated.

We are currently investigating a problem with merchants switching through the FDI XTP switch, receiving '91 - Host or Switch Unavailable' or '99 - Error communicating with the bank' responses for attempted transactions.