For many years I was able to run Quicken in a VirtualBox Win8 VM, with performance as good or better than native Win. With Win10 behavior became so flaky (frequent freezeups) that I gave up. Now in a Win11 VM Quicken at least loads well, but when I open my file it freezes with a "Please Check Internet Connection" message. I can browse just fine in the VM with Chome or Edge or Firefox.