Error code
Chrome ERR_HTTP2_PROTOCOL_ERROR
CHROMEERR_HTTP2_PROTOCOL_ERROR
Browser Error Code· An error code shown in a web browser when a page fails to load.
What it means
An error occurred in the HTTP/2 stream or connection.
How to fix it
- Reload the page as transient stream errors often self-resolve.
- Disable HTTP/2 at chrome://flags/#enable-http2 to fall back to HTTP/1.1 to test.
- Report the issue to the site owner if it persists.
Not affiliated with Chrome. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More Chrome codes
- ERR_ABORTEDThe request was cancelled before it completed
- ERR_ADDRESS_UNREACHABLEChrome cannot route a packet to the destination IP address
- ERR_BLOCKED_BY_ADMINISTRATORA network policy or device management policy blocked this URL
- ERR_BLOCKED_BY_CLIENTA browser extension blocked this request
- ERR_CACHE_MISSThe resource was expected from the browser cache but was not found there
- ERR_CERT_AUTHORITY_INVALIDThe certificate was signed by an authority Chrome does not trust
- ERR_CERT_COMMON_NAME_INVALIDThe certificate hostname does not match the site you requested
- ERR_CERT_DATE_INVALIDThe server's SSL certificate has expired or is not yet valid
- ERR_CERT_REVOKEDThe certificate has been revoked by its issuing authority
- ERR_CONNECTION_CLOSEDThe server closed the connection unexpectedly before sending a complete response
- ERR_CONNECTION_REFUSEDThe server actively refused the connection request
- ERR_CONNECTION_RESETThe connection was cut mid-session by the remote host