Hello,

 Customers are reporting to Dell/EMC that after installing Microsoft KB4503294  iSCSI connections fail with PS Series SANs.

 Early indications show that this KB also includes one of the KBs know to cause this issue. Even though those KBs do not show installed.  Removing KB4503294 then allows you to remove the other known KB and iSCSI function is restored.

 Regards,

Don