Hi Urmila, just reset the changes if u have done any (example- you might have changed network type to Bridged Adapter etc. as per suggestions etc.) Choose shut down option while closing the HDP sandbox.Then Start sandbox from virtual box.U will be able to access Ambari n other places once u login ... View more

There are 2 files- HDP_2.4_vmware_v3.ova (this is for VM, size about 2GB) HDP_2.4_virtualbox_v3.tar (this is for Virtual Box which encloses "Hortonworks Sandbox with HDP 2.4.ovf" & "Hortonworks Sandbox with HDP 2.4-disk1.vmdk" , size about 8.5GB) Use HDP_2.4_virtualbox_v3.tar contents if you are using Oracle VM Virtual Box ... View more

Tried most of suggestions, those did not work. Simply restarted Sandbox (by shut down option); Restored network ,NAT related settings .Now i am able to login to ambari, ssh client http://127.0.0.1:4200/ ... View more