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I do not understand why using VPN is a problem and will result in data loss. I supported QB for some clients for a short period of time on TS, and the only problems we had, was one of printing where the print drivers were not available and took a little bit of ingenuity to make it redirect and work properly. I could understand if the problem was an unreliable connection due to poor service from an ISP or too low bandwidth. But could you please explain how does the technology of VPN affect QB?