I recently had to upgrade my PC unexpectedly and have reinstalled QuickBooks Desktop 2021 (with the kind help from the support agents who told me how to perform the offline registration).  I am now trying to set up the MTD setting to allow me to file my VAT, but I keep getting a connection error when I try to 'Connect to HMRC'.  I guess this is all part of the same problem relating to the absense of Internet Explorer.  Please can somebody let me know how I can do this?