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Forum Discussion

zarev_316815's avatar
zarev_316815
Icon for Nimbostratus rankNimbostratus
Oct 31, 2017

Connection ERROR "Connection error: ssl_passthru:3994: not SSL (40) "

hi all,   currently i encounter"Connection error: ssl_passthru:3994: not SSL (40) " and try to investigate the cause of this error. is there anywhere to check the detail of this error?. or anythin...
application delivery
LTM
TMOS
Heinrichm_18951's avatar
Heinrichm_18951
Icon for Cirrus rankCirrus
Nov 01, 2017

Which health monitor are you running? I see that it goes down, and I'm not certain that it is the forward of traffic that actually fails. You could always try to change it to tcp_half_open (temporarily) to see if this removes the error messages and if the application works as intended afterwards.

 

Heinrichm_18951's avatar
Heinrichm_18951
Icon for Cirrus rankCirrus
Nov 01, 2017

Could you share the configuration of the monitor? If it is just trying to complete the TCP handshake you'll probably have to go with Leonardo's answer.

 

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