MacOS 9.2.1 and ADSL: the Enternet problem and the solutions
The solution, suggested and tested by many users in our forum dedicated to Mac OS 9.2.1 is to reinstall the Telecom software kit containing Enternet and, if the problem persists to rename the extension with a letter Z in front of it so that it loads last on startup. The problem also occurred after upgrading to Mac OS 9.1. If you also have problems at startup, try restarting your computer with the ADSL modem turned off.
Let us know if the fix solves your problems or not.