Why 2021R1 cannot work on this id? 

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as listed there, 2021R1 is in January 2021 release. the date until March 2021.


This is not a new device; the id is what always connected on this PC.


The problem suddenly arises when this PC need to renew its monthly login to ANSYS account.


Does this related to the rumuors  about 2020 version is a troublesome?