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Try switching to OTLP HTTP by setting `OTEL_EXPORTER_OTLP_PROTOCOL=http/protobuf`  env.

If you are using self-hosted SigNoz OSS, you will have to use `4318` port as well.

If you are using SigNoz Cloud, no change in the endpoint.

Related issue: <https://github.com/open-telemetry/opentelemetry-java/issues/5394>

below is my values file
```otelCollector:
  config:
    receivers:
      otlp:
        protocols:
          grpc:
            max_recv_msg_size_mib: 100

  ingress:
    enabled: true
    className: nginx
    hosts:
      - host: otelcollector.infra.Domain.com
        paths:
          - path: /
            pathType: ImplementationSpecific
            port: 4318```
for the above values able to run the some microservices but getting the above mentioed error

for the above conffiguration should i use port in the URL it is working without port as well

For the above, the endpoint would be `<http://otelcollector.infra.Domain.com:80>`
Port `80` might not be required.