# rpc error: code = Internal desc = stream terminated by RST_STREAM with error code: PROTOCOL_ERROR

- **ID:** `go/grpc-internal-error-stream-closed`
- **Domain:** go
- **Category:** runtime_error
- **Verification:** ai_generated
- **Fix Rate:** 80%

## Root Cause

A gRPC stream was reset due to a protocol error, often caused by malformed frames or mismatched flow control.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| 1.0 | active | — | — |
| 1.1 | active | — | — |

## Workarounds

1. **Check for network proxies or load balancers that may interfere with HTTP/2.** (70% success)
   ```
   Ensure no intermediate proxies modify gRPC frames. Use direct connections if possible.
   ```
2. **Update gRPC and HTTP/2 libraries to the latest versions to fix known protocol bugs.** (85% success)
   ```
   go get google.golang.org/grpc@latest
And update golang.org/x/net to latest.
   ```

## Dead Ends

- **Restart the client and server without investigating the cause.** — The underlying protocol issue may persist if not fixed. (80% fail)
- **Ignore the error and continue streaming.** — The stream is already terminated; further sends will fail. (100% fail)