Running Debian Sid quite long and never had such "unstable" issue.
After upgrading package ppp from 2.4.7-1+4 to 2.4.7-2+1 cannot start ppp-oe connection, requests to my ISP are failing with: MS-CHAP authentication failed: Authentication failure
Nothing was changed in config/connection settings. After I removed new package and installed previous version (with several dependencies) - ppp is back to normal.
Did anyone face the same issue?
Regards.