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Could not establish trust relationship for the SSL/TLS



we facing a problem with some transictions ome times with the error: 


could not establish trust relationship for the SSL/TLS


after searching i understand that has changed the certificate.


i need a guide how to change the old certificate to the new one. 


Thanks :) 


Only sometimes? not always?


only sometimes...


There are a few thread on the subject, did you go thru those?

hmm i searched and saw those threads


i didnt understand the solution they suggested there... 

Hi Everyone,


I am also having this issue.  We never experienced this until 2 days ago where we would receive this error when trying to send the request to the live URL.  Nothing has changed on our end.  Our SSL cert is still good for another year. 


The only way I was able to get our website to connect to is by ignoring the certificate validation before the request is sent, which seems like bad practice to me.


I am assuming that this may be an issue on the side as this just started happening a couple days ago with no changes on our end. 


Please let me know if there is a reason or fix for this as ignoring the certificate validation is not something I want to permanently do.  I have checked and tried all the other solutions on this website as well as others.  Thanks for any help!