# 2.7.2-P17 server cert/key replace procedure

**URL:** https://community.a10networks.com/t/2-7-2-p17-server-cert-key-replace-procedure/744
**Category:** ADC - Application Delivery
**Created:** [August 24, 2022, 12:21am UTC](https://community.a10networks.com/t/2-7-2-p17-server-cert-key-replace-procedure/744 "2022-08-24T00:21:49Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![shang](https://avatars.discourse-cdn.com/v4/letter/s/90ced4/32.png) [@shang](https://community.a10networks.com/u/shang)
#### Post date: [August 24, 2022, 12:21am UTC](https://community.a10networks.com/t/2-7-2-p17-server-cert-key-replace-procedure/744/1 "2022-08-24T00:21:49Z")

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We have a problem of replacing server cert and key after upgrading ACOS version from 2.7.2-P8 to 2.7.2-P17.  
The symptom is as follows:  
&nbsp;key … (error) Key parsing failed  
&nbsp;cert … (error) Key parsing failed  
I assume that 2.7.2-P17 verifies public/private keys and mismatch was found.  
But, I can’t find any description about this spec change on 2.7.2-P17 release note.  
Could anyone here help me please?