VDP 5.5 Failed to get the datastores with performance analysis information

Hi all,

I have two VDP appliances running version: 5.5.5.180.

All of a sudden I cannot connect from Web Client to either appliance.

VDP status show all services as green on both VDPs.

root@vdp:~/#: dpnctl status all
Identity added: /home/dpn/.ssh/dpnid (/home/dpn/.ssh/dpnid)
dpnctl: INFO: gsan status: up
dpnctl: INFO: MCS status: up.
dpnctl: INFO: Backup scheduler status: up.
dpnctl: INFO: axionfs status: up.
dpnctl: INFO: Maintenance windows scheduler status: enabled.
dpnctl: INFO: Unattended startup status: enabled.

Clicking the Storage tab, displays error message: "Failed to get the datastores with performance analysis information" and no datastores are listed.

• Restarting vCenter, VDPs, does not change anything.
• I can login to VDPs just fine.
• CP are being created.

I've found similar threads but with no answer... (VDP 5.5 ERROR)