Blader door alle 60 Netwerk-/DNS-/TLS-fouten-foutcodes met oorzaken, oplossingen en voorbeelden.
AkousaNXDOMAINThe DNS server reports that the domain name does not exist.
SERVFAILThe DNS server encountered an internal error while processing the query.
REFUSEDThe DNS server refused to answer the query.
DNS_TIMEOUTThe DNS query timed out without receiving a response.
ERR_CERT_AUTHORITY_INVALIDThe SSL/TLS certificate is issued by a certificate authority that is not trusted.
ERR_CERT_DATE_INVALIDThe SSL/TLS certificate has expired or is not yet valid.
SSL_ERROR_HANDSHAKE_FAILUREThe SSL/TLS handshake between client and server failed.
certificate_unknownThe server's certificate could not be verified for an unknown reason.
ECONNREFUSEDThe server actively refused the connection attempt.
ECONNRESETThe remote server unexpectedly closed the connection.
ETIMEDOUTThe connection attempt timed out before a response was received.
ENETUNREACHThe network hosting the destination cannot be reached.
EHOSTUNREACHThe specific host cannot be reached on the network.
ERR_NAME_NOT_RESOLVEDThe hostname could not be resolved to an IP address in the browser.
ERR_CONNECTION_REFUSEDThe browser's connection attempt was actively refused by the server.
ERR_CONNECTION_TIMED_OUTThe browser's connection attempt timed out waiting for a server response.
ERR_SSL_PROTOCOL_ERRORAn error occurred during the SSL/TLS protocol exchange.
CORS: Missing Access-Control-Allow-OriginThe server's response does not include the required Access-Control-Allow-Origin header.
CORS: Preflight request failedThe CORS preflight OPTIONS request was rejected by the server.
CORS: Method not allowedThe HTTP method is not included in the Access-Control-Allow-Methods header.
CORS: Header not allowedA request header is not included in the Access-Control-Allow-Headers response.
Mixed Content BlockedAn HTTPS page is loading resources over insecure HTTP.
Content Security Policy violationA resource or action was blocked by the Content-Security-Policy header.
EPIPEWriting to a connection that the other end has already closed.
EADDRINUSEThe network address (IP + port) is already being used by another process.
EADDRNOTAVAILThe requested address is not available on this machine.
ENOTFOUNDThe DNS lookup for the hostname failed in Node.js.
ERR_CERT_COMMON_NAME_INVALIDThe SSL certificate's subject name does not match the requested hostname.
ERR_CERT_REVOKEDThe SSL certificate has been revoked by the certificate authority.
ERR_HTTP2_PROTOCOL_ERRORAn error occurred in the HTTP/2 protocol communication.
ERR_QUIC_PROTOCOL_ERRORAn error occurred in the QUIC/HTTP/3 protocol communication.
ERR_INTERNET_DISCONNECTEDThe device does not have an active internet connection.
ERR_NETWORK_CHANGEDThe network configuration changed during the request.
ERR_TOO_MANY_REDIRECTSThe browser detected too many HTTP redirects (typically more than 20).
ERR_SSL_VERSION_OR_CIPHER_MISMATCHThe client and server cannot agree on a TLS version or cipher suite.
ERR_CONNECTION_CLOSEDThe connection was closed before the response was completed.
ERR_CONNECTION_RESETThe connection was forcibly reset during communication.
ERR_EMPTY_RESPONSEThe server did not send any data and closed the connection.
ERR_FAILEDA network request failed for a reason not covered by more specific error codes.
ERR_ABORTEDThe network request was cancelled before completion.
ERR_BLOCKED_BY_CLIENTA browser extension (typically an ad blocker) blocked the request.
WebSocket connection failedThe WebSocket connection could not be established or was interrupted.
AbortError: The operation was abortedA fetch request was cancelled via an AbortController signal.
ERR_PROXY_CONNECTION_FAILEDThe connection to the proxy server could not be established.
ERR_TUNNEL_CONNECTION_FAILEDThe CONNECT tunnel through a proxy server could not be established.
ERR_CACHE_MISSThe browser cache does not have the requested resource and a network request was expected.
ERR_INSUFFICIENT_RESOURCESThe browser has run out of resources to handle the network request.
DNS_PROBE_FINISHED_NXDOMAINChrome's DNS probe confirmed the domain does not exist.
Sec-Fetch blockedThe request was blocked based on Sec-Fetch-* metadata headers.
ERR_CERTIFICATE_TRANSPARENCY_REQUIREDThe certificate does not meet Certificate Transparency requirements.
ECONNABORTEDThe connection was aborted by the local system.
ERR_RESPONSE_HEADERS_TOO_BIGThe server's response headers exceed the browser's maximum allowed size.
ERR_CONTENT_LENGTH_MISMATCHThe actual response body size does not match the Content-Length header.
CORS: Credentials mode not supportedA cross-origin request with credentials fails because the server uses a wildcard origin.
CSP: Inline script/style blockedAn inline script or style was blocked by the Content Security Policy.
ERR_SSL_CLIENT_AUTH_CERT_NEEDEDThe server requires a client SSL certificate for authentication.
ERR_ADDRESS_UNREACHABLEThe target IP address or hostname cannot be reached from the browser.
ERR_BLOCKED_BY_RESPONSEThe browser blocked the response due to CORB, CORP, or other response-based security policies.
ERR_NETWORK_IO_SUSPENDEDNetwork I/O has been suspended, typically when the browser is throttled.
ERR_SSL_OBSOLETE_VERSIONThe server only supports TLS versions that are considered obsolete and insecure.