Well, I’ll tell you what we do … For known “problem sites” (and, yes, Lowes is one of them) we dimply direct traffic destined for the known “problem server” to another WAN or tunnel. Here’s an example from one of our clients. They send most traffic out via a SFC tunnel. However, they found this would “break” delta.com. So, this is the rule that "fixes “delta”:
In this case the traffic will go via Spectrum (cable internet) and if that WAN is not healthy, it will be directed to the Transit (cellular.)
What I suspect you may be “missing” is this: Once a connection fails the paranoid checks on the other end you are not likely to succeed with making a connection to that site by via any WAN until you erase the cookies from your browser. I think Lowes is one of those, and I know two financial institutions and several other e-commerce sites that behave that way.