Ok. I have answered my own question: Don't try these things when you're tired late at night.

Come this morning, I tried setting the switches. It seems simply turning on the first switch (SW1.1) to enable the switches made it work. I have tried IRQ 2 and 3 and I/O address 0x300 and 0x320. All work. As soon as I revert to "jumperless config" it won't work. I'm guessing I just don't know what the "jumperless" configuration defaults to. Anyway, it's working. Thank you for looking. Hope this helps someone else. 😀

the switchless config is whatever values are declared in 8019AS.CFG
PG8019 also writes these defaults , not only MAC address
if you wish to change them just use RSET8019 (it programs the selected values in the eeprom) or edit 8019AS.CFG with the desired defaults

on my cards I use the realtek 8019 specific packet driver called PNPPD.COM , seems like a better option than a generic NE2000 driver
you can download it here

Ah. The IO is set to 260 in the CFG. Thank you. This is working now in jumperless config.

keropi wrote on 2022-08-20, 09:40:

on my cards I use the realtek 8019 specific packet driver called PNPPD.COM , seems like a better option than a generic NE2000 driver
you can download it here

Is this for 8-bit slots or does it work at full 16-bit as well?

maxtherabbit wrote on 2022-08-20, 11:07:

Is this for 8-bit slots or does it work at full 16-bit as well?

They're 8-bit slot cards for 5150/60/55/compatibles, 5155 in particular due to size but should work in a 16-bit slot. Obviously if you're looking for a 16-bit isa card it would be cheaper to buy an existing one.

I'm looking to sell the other 4 for $40 + P&P which should be the same as the original designer is selling them for:
https://www.tindie.com/products/weird/isa-8-b … net-controller/

mikeyp wrote on 2022-08-20, 11:17:

They're 8-bit slot cards for 5150/60/55/compatibles, 5155 in particular due to size but should work in a 16-bit slot. Obviously […]
Show full quote

maxtherabbit wrote on 2022-08-20, 11:07:

Is this for 8-bit slots or does it work at full 16-bit as well?

They're 8-bit slot cards for 5150/60/55/compatibles, 5155 in particular due to size but should work in a 16-bit slot. Obviously if you're looking for a 16-bit isa card it would be cheaper to buy an existing one.

I'm looking to sell the other 4 for $40 + P&P which should be the same as the original designer is selling them for:
https://www.tindie.com/products/weird/isa-8-b … net-controller/

I'm asking specifically about keropis packet driver here

maxtherabbit wrote on 2022-08-20, 11:07:

Is this for 8-bit slots or does it work at full 16-bit as well?

you mean the packet driver?
it works in both 8/16bit mode , the bus width is handled internally in the 8019 - the driver just works in both cases
I just *assume* a manufacturer packet driver will be better than the generic NE2000 one - I have no real evidence or benchmarks though as I only ever used the realtek packet driver...

Keropi, I tried your driver but it's trying to initialise it as IRQ 9 instead of 2. Is there a way I can't figure to force it to pick up IRQ 2? Thank you.