Hi MRoushdy,
I had a similar issue, this was then related to another issue with Networking in my case it was a VIN Fault ( https://vmtn.blog/2017/11/24/error-vim-fault-notfound/ ) however, also the APIPA was triggered. What I did was to create a new vDS and I moved the Ports to the new one, ironicly the issue disaperead. I know it dosn't make any sense. However try it once, it maight also be the solution at your end.
Best regards,
Marco