Microware OS-9 68000 SPF

Anyone familiar with the SPF file manager on Microware OS-9? I have an MVME162 processor and for no good reason, other than an intellectual exercise, I've decided to try and get OS-9 68000 running on it. Mostly this has been a pretty simple exercise, since the necessary ROM images are on the Internet, however, the one thing that I can't seem to make work is SLIP (or PPP for that matter). I have the MVME board connected via an RS232 connection to a Raspberry PI. PPP doesn't work at all but SLIP works partially. I can PING from the PI to the MVME and from the MVME to the PI. I can send TCP traffic in both directions. I can send UDP traffic in both directions. When I try to start a telnet session from the PI to the MVME, it seems like the session is established: Trying 192.168.2.2... Connected to 192.168.2.2. Escape character is '^]'. But I never see the login prompt on the PI. Pretty much the same thing applies to other telnet clients including Windows, NetBSD VAX and 211BSD on my PDP-11. Furthermore, I see that the connection handler in OS-9, telnetdc, is started and also login is started 20 0 0.0 128 48.00k 0 e 0.03 0:00 telnetdc <pks01 21 20 0.0 128 24.00k 0 e 0.02 0:00 login <>>>pks01 40 0 0.0 128 52.00k 0 s 0.12 25:42 telnetd <>>>nil but I never get a login prompt at the PI. Any suggestions?