I verifed that, yes, Ignore Illegal Memory Accesses is checked. FWIW, I have BasiliskII installed with System 7.5.5, and internet access works there. Not sure if that's relevant. Internet access on the host OS works fine. Turning off the macOS firewall, and disabling Little Snitch (an outbound firew...

Thanks for the reply. I've verified that "slirp" (sans quotes) is indeed in the Ethernet Interface box. No other characters. The self-assigned IP address and the router address are both 169.254.90.203, the subnet mask is 255.255.0.0, and the name server address is 239.255.255.251. I tried ...

Launched SheepShaver and can't connect to the internet, although I have been able to do so in the past. Tried to go to any web address using Classilla results in a host not found error. Verified slirp is in the Ethernet Interface box in the prefs. Inside SheepShaver, the TCP/IP control panel is show...