How to resolve: Windows VM guest on ODA X5-2 disconnect or session terminated after increasing the m

The Windows server 2008 VM guest is running on ODA X5-2. The guest has been stable at 128GB memory, but because of the memory utilization of 83% at 128GB, the customer was prompted to request for additional of like 42GB to be added to the initial 128GB making a total of 170GB memory.

The guest disconnect or session terminated at 170GB. But when check the status of the guest on oda_base( oakcli show vm) it will show the guest is online but could not ping the Ip of the guest on oda_base.

And any time the guest disconnect, it does reflect or captured on the dom0 or oda_base