hello, i keep getting this error when

hello, i keep getting this error when trying to connect .. it connected at. home but right now I am at the library and it is no longer connectiing .. does anyone have any advice ? Error connecting to PostgreSQL Database: connection to server at xyz.us-east-2.aws.neon.tech port 5432 failed: Operation timed out
Is the server running on that host and accepting TCP/IP connections?