All week, I was building a homemade parallel buffered JTAG circuit. Honestly, this should've been done years ago. But the current routers I am using does utilize JTAG, so it's not a total waste.

I originally had issues with the circuit, but it eventually worked on the old eMachines T1360 desktop. I also switched the 74HC244 IC before this, so who knows. I should try the original IC again sometime, as I think the original one is fine. (I miswired two pinouts on the test Linksys WRT54G-TM unit at some point.)