When attempting to connect to a replica set (specifying multiple members) and turning on the ssl option, we get a `Mongo::ServerSelector::NoServerAvailable` error. The cluster topology shows as "Unknown".

If we specify only one server, then it works fine.

We also tried specifying `connect: :replica_set` but that didn't help. The cluster topology showed correctly as a "Replica Set", but it still couldn't select a server to query.

This only happens if SSL is turned on.