Installation of WAIK was causing the issue. Unfortunatley the only remedy was to rebuild the CORE Server and link it to the old database.
After uninstalling WAIK, it still required reinstallation of 9.5 SP1 and patches, and general conifigurations. Than redeployment of the PXE server and all returned to normal.
Also the following was run in SQL so provisioning tasks could be scheduled.
update keyvalue set intvalue=0 where applicationname='WAIKLicenseAgreement'