iSCSI port binding Path Status is shown as 'Not Used'

Hi,

We've 4 ESXi hosts in our infrastructure connected to Dell EqualLogic PS series iSCSI SAN. We've 2 dedicated NICs for iSCSI traffic which is configured with port binding.

Everything was working fine until I noticed last day that path status of one of the iSCSI port is shown as 'Not Used'. The path status of both these port groups were 'Active' earlier.

Network admin confirmed that there isn't any network change.

Also the additional path of the attached datastore is missing:

Please help me with this. I believe this ruins our iSCSI multi pathing capability.