Attached: 1 image And the 512K is now reliably online on #GlobalTalk! My issues ended up being a combo of tashrouter and physical cabling issue. Tashtari (creator of TashTalk and tashrouter) jumped in and fixed the software portion, while someone else at 68kmla pointed me towards cabling and I found a bad pin on my NeitherNet. I went ahead and made that dongle a DB9 one dedicated to the 512K, since I have enough other mini DIN 8 ones.