If all else fails, simply log into the OBi directly, disable Auto Provisioning, and configure the OBi without using the OBiTALK Web Portal. You will not be lacking any features or capabilities by doing so and will have full control over the OBi without being at the mercy of the OBiTALK Web Portal.
To disable Auto Provisioning, set:
System Management -> Auto Provisioning -> ITSP Provisioning -> Method : Disabled
System Management -> Auto Provisioning -> OBiTALK Provisioning -> Method : Disabled
and then reboot.