hosts on 2 different esxi not able to communicate : Lab setup

Hi ,

I have installed 2 esxi's on 2 different laptops and installed 1 VM ( server 2016 data center ) on each esxi host ( Vsphere 6.5 ) ....i have configured all static IPs ....

Installed VM1 ( server 2016 )  on  esxi 1 ( host 1 )

Installed VM2  ( server 2016 ) on esx i 2 ( host 2 )

can able to ping host 1 ( esxi 1 ) from VM1 ( server 2016 )   on host 2( esxi 2 ) and vise versa  .

but cannot ping VM1 ( server 2016 ) from VM2 on host 2 and vise versa .