ERR_CONNECTION_CLOSEDERR_CONNECTION_CLOSED — Connection Closed
The connection was closed before the response was completed.
ERR_CERT_AUTHORITY_INVALIDThe SSL/TLS certificate is issued by a certificate authority that is not trusted.
The certificate is self-signed, issued by an unknown CA, or the intermediate certificate chain is incomplete. The browser or client does not have the CA's root certificate in its trust store.
Use a certificate from a trusted CA (Let's Encrypt is free). Install the intermediate certificate chain on the server. Add the CA to the trust store for internal/development certificates.
ERR_CONNECTION_CLOSEDThe connection was closed before the response was completed.
SSL_ERROR_HANDSHAKE_FAILUREThe SSL/TLS handshake between client and server failed.
REFUSEDThe DNS server refused to answer the query.
EPIPEWriting to a connection that the other end has already closed.
ERR_INTERNET_DISCONNECTEDThe device does not have an active internet connection.
ETIMEDOUTThe connection attempt timed out before a response was received.