Failed to connect to Neo4j db via c#

When I try to connect to Neo4j db by client.Connect(); from Neo4jClient it throws 404:

[HttpException (0x80004005): Received an unexpected HTTP status when executing the request.

The response status was: 404 Not Found

This error occurs either in my projects or demo projects on Neo4jClient. Config: url: http://localhost:7474/db/data"

• login: neo4j" (by default)
• password: "1234" (default "neo4j" was changed to "1234"

Tried with Neo4j Desktop and Neo4j Community Edititon and it happens in both cases. (Service is running, using 7474 port).

With docs I don't see why this problem arises. Any ideas why this may haplen and what do I miss?