The MNO have resolved the issue and CSL can see devices operating on primary profile again. Devices would continue to operate on secondary profile and will come back to primary over the next few hours.
Update at 18:52 08/10/25
CSL is pleased to confirm the issue is resolved. The problem was introduced as a result of the mobile network operator for the primary profile undertaking a change overnight which resulted in the sims roaming onto o2 UK unable to authenticate to the home network.
This has been resolved and rSIMs will gradually migrate back to their primary profiles over the coming hours. The switch back is randomised for each sim to avoid large fleets all switching at the same time.
Posted Oct 09, 2025 - 09:59 CEST
Identified
Update 1: Following a mobile network operator maintenance period, rSims are not currently able to use their primary profile. Connectivity for rSims continues via the secondary profile; however, this may have some impact on initial provisioning.
CSL are working with the network operator to establish cause.
Update 2: CSL believe we've identified why the primary profile is degraded. We believe the issue is with the mobile network operator. Evidence is being provided by CSL to the mobile network operator involved, who are actively engaged in finding a resolution for this issue impacting the rSIM.
rSIM, per its intended behaviour, has automatically moved to its secondary profile.