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Datapower TLS "unexpected eof while reading" error

Question & Answer


Question

After an upgrade to Datapower v10.6.0.x, why does some TLS connections end with the following error and how to resolve it? 
[0x8120002f][ssl][error] ssl-client(my-ibm-tls-client): trans(376295499)[1.1.1.1] gtid(2d7e3a6c6809c4020fe3ee8f): TLS library error: error:0A000126:SSL routines::unexpected eof while reading

[{"Type":"MASTER","Line of Business":{"code":"LOB77","label":"Automation Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SS9H2Y","label":"IBM DataPower Gateway"},"ARM Category":[{"code":"a8m50000000CdoNAAS","label":"DataPower-\u003ESecurity (SE)-\u003ETLS"}],"ARM Case Number":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Versions"}]

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Document Information

Modified date:
22 October 2025

UID

ibm17232638