Could not connect to MongoDB on the provided host and port

To solve mongodb not running on the provided host and port issue you should just follow the following steps while connecting MongoDB tool(MongoDB Compass)to MongoDB:

Go to C drive and create a folder db in the path C:datadb, if you don't see the data folder in C drive, please create it first and then db folder

Go the folder, where you had installed MongoDB, in my case, it was C:Program FilesMongoDBServer.2in

Type the command C:Program FilesMongoDBServer4.2bin>mongod

This will set up MongoDB on your system and now if you try connecting, you may not be getting the issue.