HTTP/2 client preface string missing or corrupt about grpc-spring HOT 5 CLOSED

If you look at the hex dump: 0000002f122d080112290a1e0a076d616e61676572120b31
And try to decode it you get some binary garbage.
Is it possible that the client tries to connect to the server using TLS encryption but the server is in plaintext mode?
Please check the negotiationType property for more information.
https://grpc-ecosystem.github.io/grpc-spring/en/client/security.html

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If you look at the hex dump: 0000002f122d080112290a1e0a076d616e61676572120b31 And try to decode it you get some binary garbage. Is it possible that the client tries to connect to the server using TLS encryption but the server is in plaintext mode? Please check the negotiationType property for more information. https://grpc-ecosystem.github.io/grpc-spring/en/client/security.html

If I want to configure client Disable Transport Layer SecurityDisable Transport Layer Security through “grpc.client.name.negotiationType=PLAINTEXT”, what should I “name” in my client and server connection method via hostname and port?

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我已经在client side设置了grpc.client.xxx.negotiationType=PLAINTEXT但是依然有Http2Exception · Issue #648 · grpc-ecosystem/grpc-spring (github.com)

I have tried setting the client according to this issue, but it doesn't seem to work.

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And on the client side, usePlaintext has been executed when creating the Channel.

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It is very strange that tdh-01~ tdh03 are both the same operating system and the same deployment method. Why is only tdh-01 connection reporting an error?

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