Failed to negotiate security protocol: context deadline exceeded

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I created a relay node on my Alibaba Cloud server and opened port 45454. I tried to connect to this relay node on another Tencent Cloud server, and the error message was as follows:

Failed to connect unreachable1 and relay1: failed to dial: failed to dial 12D3KooWEqnntzAkaTSkKUqVQwV4k3cg34tbd32MX8uNPwHyKnLQ: all dials failed

  • [/ip4/127.0.0.1/tcp/45454] dial tcp4 127.0.0.1:45454: connect: connection refused
  • [/ip4/172.26.52.198/tcp/45454] dial tcp4 172.26.52.198:45454: i/o timeout
  • [/ip4/47.98.238.134/tcp/45454] failed to negotiate security protocol: context deadline exceeded.

But I tried to connect locally and it was successful, what is the reason.