Unfortunately, it appears that the upgrade to Tiger removed the last of the support for OS 9 machines using AppleTalk. This also happened to me. The error message is not very helpful as it seems to indicate that there is a solution but is not forthcoming as to what it is. The obvious one is to install a later version of AppleTalk but I have seen no reference to it yet. Still looking. the other alternative is to upgrade the G4 to Panther or Tiger which will restore the File Sharing.
I'm still looking for anther solution
P
We have three computers connected to a network. Mainly this is convenient for broad-band access. However, two of them were in a file sharing mode until one of them was upgraded to Tiger. Now it will not connect to the G4 running 9.2.2
The other computer is a G5 and until the upgrade was quite happily allowing the use of a drop box from the G4.
Trying to connect now brings up the following message:
CONNECTION FAILED
THIS FILE SERVER USES AN INCOMPATIBLE VERSION OF THE AFP PROTOCOL. YOU CANNOT CONNECT TO IT.
This facility is essential to my work
HELP!!!!
Peter

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