These are chat archives for Automattic/mongoose
mongodb://user:pass@host:port/db?authMechanism=MONGODB-CR. Upgrading to mongodb 3.0.x is not sufficient to change over to SCRAM-SHA-1 auth if you already have users in the database, that usually ends up being the source of these errors @drakoumel
authMechanism=SCRAM-SHA-1, here's the relevant code: https://github.com/christkv/mongodb-core/blob/75a9259f746c75a651cfd31430122893ed21f1ec/lib/topologies/server.js#L1018-L1021 basically, if you're connecting to a mongodb instance that's >= 3.0.0 it should use SCRAM-SHA-1 by default. Can you show me how you're connecting?