As @BrandonS says, if you have 'fat client' devices like Windows or Mac PCs using local applications and clients connecting to central servers and applications, it's going to be quite bad with people working from home. Solutions are: Cloud services, OneDrive syncing local files to central server for example, however this only moves the problem as has been seen today Set up the VPN and use a system such as riverbed that has a compression agent on the client PC and a server in the Datacenter VPN with Citrix XenApp in Datacenter, works over mobile connections and basic broadband VPN with VDI in Datacenter, more performant than Citrix XenApp but bigger overhead. We've gone with options 1 and 3 initially.
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