@mechy and @kolla - just wanted to report back to you guys. After a bit of sleuthing around, I did find a Volktek BNC/TP media converter, a couple of T-connectors, a matching pair of 50 Ohm terminators and a matching 50 Ohm coaxial "Cheapernet" cable. After setting everything up and powering on the converter and the Amiga, the converter "Link" LED powers up, suggesting a sound connection between the Ariadne card and the converter.

Unfortunately, that's where my luck ends. Despite having told the Ariadne card to use the BNC jack ("SetEnv Sana2/ariadne_0.config 10BASE2"), despite setting up the card1 ("ifconfig ether0 192.168.1.64 netmask 255.255.255.0"), despite checking the default route ("route add default 192.168.1.1"), AmiTCP still won't detect any incoming data. Pinging localhost works just fine, but pinging the gateway (i.e. 192.168.1.1) ends up with a 100% packet loss. When I ping the router like this, strangely the media converter's "Receive" and "Send" LEDs starting blinking, so there actually seems to be traffic going through the coaxial cable - but for some reason, AmiTCP doesn't see it coming back. Using Roadshow's DHCP functionality doesn't change anything - NetLogViewer shows that the stack never receive an answer from the gateway's DHCP server.

All in all, the outcome is the same no matter if I use the Ariadne's RJ45/Twisted Pair jack, or its BNC connector. Unfortunately, I'm leaning towards the Ariadne being busted somehow - which is really strange. It's been working flawlessly since I got it, and it's been stored in room temperature ever since.

Monitor is attached directly to the Amiga, and not to the Raspberry Pi, right?

I see from another thread that you now have access to your serial no. again. Good news!

When you go onto the Hyperion website you should find a list of bugfixes. From what I can tell 3.2.2.1 is software only and the latest official ROM version is 3.2.2.

With the PiStorm32 it can use a different kickstart to the one you have as physical ROM chips. I have 3.2 physical chips but softkick to 3.2.2. This might help you if you are swapping between boards; it sounds like the 1260 ROMs you are asking about are modified for a specific accelerator so you could have those on your motherboard and then when you use a PiStorm32, that can override the physical ROMs by having your PiStorm boot with 3.2.2.

Hey All, seems the more I advance the more I fall behind. Only been using
this computer since 1988 and I am still lost. I have upgraded my A1200
2.2.2.1 thanks to Hyperion helping me recover a Serial number. But
now when I press the Help key nothing happens when before it used to
open the OS3.2 Help pages. Which was great to use. There was another
way to open it, from the Shell I believe, but I lost it. If someone could
point me to that or other wise give me some advise on how to access
it, I would be most appreciative.
Thanks,
Brad Hansen

There are numerous variations and extensions of the JPEG format. Apparently the programs you use don't support some of them. The most incompatible is "progressive". This means the image is saved in a format which allows to quickly load a blurry preview of the image and it gets sharper the more layers are loaded. Another extension which might confuse loaders is meta data in JFIF containers.