Allen Bradley Control Logix PLC's Comms issue - Only with L8x Series CPU's

on upgrading to Plant Scada 2020R2 from Citect 2018 I have noticed i have an issue with ABCLX comms and Allen Bradley PLCs but Only for L8X cpu’s ( I have L83E cpu’s).

L83E Control Logix CPU's have an onboard RJ45 connector for ethernet whereas others in the plant i have use the AENT card for comms (L6x, L7x for example) the driver works fine with all my Compact Logix PLC's.

the ABCLX driver version is latest at 4.02.00.000. 

i think i may had this issue many years ago but cannot remember what the fix was, any help greatly appreciated.