nonetheless commented on PR #17431:
URL: https://github.com/apache/kafka/pull/17431#issuecomment-2582694169

   Hello, I use kafka-clients version 3.8.0 to access the old version of kafka 
broker. In some cases, Scoket setup timeout errors will occur, but it is normal 
to use telnet and other networks to check the network from the client to the 
server. Due to this environment This is a production environment and there is 
currently no debug log. Is this issue related to my envirement?
   - Client: kafka-clients 3.8.0
   - Server: kafka 2.8.2
   - config
   `
   kafka:
           bootstrap-servers: 
10.63.245.244:29096,10.63.245.244:29097,10.63.245.244:29098
           properties:
             enable:
               idempotence: false
             security:
               protocol: SASL_PLAINTEXT
             sasl:
               mechanism: SCRAM-SHA-512
               jaas:
                 config: 
'org.apache.kafka.common.security.scram.ScramLoginModule required 
username="xxx" password="xxx";'
           producer:
             retries: 10
           consumer:
             enable-auto-commit: false
             properties:
               request.timeout.ms: 60000
               session.timeout.ms: 120000
               max.poll.interval.ms: 300000
               max.poll.records: 100
           listener:
             ack-mode: MANUAL_IMMEDIATE
           group: hro-user-group
           topic:
             hro-user: hro-user-topic
             operation-log: sp-operation-log 
             hro-user-change: hro-user-change 
             hro-dept-change: hro-dept-change
             hro-user-park-change: hro-user-park-change 
             uc-user-change: uc-user-change 
   `
   - Log:
   `
   [kafka-consumer-network-thread | producer-1] o.a.k.c.NetworkClient  [] : 
[Consumer clientId=consumer-1] Disconnecting from node -2 due to socket 
connection setup timeout. The timeout value is 30000 ms.
   `
   - Envirement Test:
   `
   telnet  10.63.245.244  29096 is ok
   ping 10.63.245.244  use 0.5ms
   `


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