Can't connect from AppleShare IP

I'm trying to connect a beige G3 running AppleShare IP 6.3 on OS 9.0 to my iBook, which is running 10.2.1. When I try to connect from the Chooser, I am able to see it on the list of Servers, but when I try to connect, I immediately get "The connection to this server has been unexpectedly broken." Trying to connect via an IP address gives me the candy stripe progress bar for a moment, then "Couldn't find the server afp://192.168.0.7" Trying to connect via Network Browser gives me error -1072.

I'm able to connect to the iBook from other machines on the same network, albeit running 9.0.2 and not ASIP.

What do I have to do on the G3 to get it to connect?