Virtual Machines are often provisioned with Firewall rules blocking all internet traffic unless authorised for development. The below Urls will help you setup your virtual Machines to ensure developers can use the VM for Dynamics 365 and Azure development projects;
aadcdn.msftauth.net
1,aka.ms
1,amazonaws.com
1,analysis.windows.net
1,app.powerbi.com
1,auth.gfx.ms
1,azure-api.net
1,azure-automation.net
1,azure.com
1,azurewatsonanalysis-prod.core.windows.net
1,barracudanetworks.com
1,batch.azure.com
1,blob.core.windows.net
1,cdn.vsassets.io
1,core.windows.net
1,crl.comodoca.com
1,crl.globalsign.com
1,crl.globalsign.net
1,crl.usertrust.com
1,crl3.digicert.com
1,crm4.dynamics.com
1,cudasvc.com
1,database.windows.net
1,dev.azure.com
1,dev.crm4.dynamics.com
1,disco.crm.dynamics.com
1,documents.azure.com
1,educationgovuk.sharepoint.com
1,ent-shasta-rrs.symantec.com
1,file.core.windows.net
1,gallery.vsassets.io
1,gallerycdn.vsassets.io
1,github.com
1,globaldisco.crm.dynamics.com
1,go.microsoft.com
1,home.dynamics.com
1,iecvlist.microsoft.com
1,kingswaysoft.com
1,login.microsoftonline.com
1,login.windows.net
1,microsoft.com
1,microsoftonline-p.com
1,msftncsi.com
1,nuget.org
1,ocsp.comodoca.com
1,ocsp.usertrust.com
1,ods.opinsights.azure.com
1,ods.systemcenteradvisor.com
1,oms.opinsights.azure.com
1,oscp.digicert.com
1,packages.nuget.org
1,portal.azure.com
1,portal.azure.net
1,portal.microsoftonline.com
1,portal.office.com
1,publictrust.com
1,queue.core.windows.net
1,s1.symcb.com
1,s2.symcb.com
1,secure.aadcdn.microsoftonline-p.com
1,settings-win.data.microsoft.com
1,sr.symcb.com
1,sts.education.gov.uk
1,table.core.windows.net
1,telerik.com
1,test.crm4.dynamics.com
1,urs.microsoft.com
1,vault.azure.net
1,verisign.com
1,visualstudio-devdiv-c2s.msedge.net
1,vssps.visualstudio.com
1,windows.com
1,www.kingswaysoft.com
1,www.nuget.com
1,www.telerik.com
1,xrmtoolbox.com
*This post is locked for comments