Well, after playing with the new hub for awhile, it seems to be working and transferring data.
When hub is plugged into the TP-Link, the Internet light stays steady illuminated instead of rapidly blinking like it does with no USB hub.
So I am happy to make progress.
Now, since I see that the hub allows data transfer, if the TP-Link should freeze again, I will definitely know its the router and not the lack of a hub.
I do appreciate greatly the suggestions that better informed people here have provided, thank you.