# Host validation error on deployment step

**URL:** <https://hub.mender.io/t/host-validation-error-on-deployment-step/3590>\
**Category:** General Discussions\
**Created:** [May 3, 2021, 9:13pm UTC](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590 "2021-05-03T21:13:16Z")\
**Posts on this page:** 1\
**Showing post:** 9

<div class="post-metadata">

**Author:** ![hancerli](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/hancerli/32/1185_2.png) [@hancerli](https://hub.mender.io/u/hancerli)\
**Post date:** [May 4, 2021, 1:42pm UTC](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590/9 "2021-05-04T13:42:59Z")

</div>

I couldn’t wait and gave it a try :]

Got a backup of current SSL certificate folder and recreate the new ones by using:

```
CERT_API_CN=mender.myurl.com.foo CERT_STORAGE_CN=mender.myurl.com.foo ../keygen

```

And also updated prod conf file:

```
ALLOWED_HOSTS: mender.myurl.com.foo
DEPLOYMENTS_AWS_URI: https://mender.myurl.com.foo

```

Then copied related certificates to the client, decommissioned, and re-authorized it back again. However, now I’m getting another error on the client side;

> time=“2021-05-04T16:40:47+03:00” level=error msg=“Update check  
> failed: transient error: (request\_id: ): Invalid response received from server server error message: fai  
> led to parse server response: json: cannot unmarshal object into Go struct field .error of type string”

P.S.  
Client can successfully send inventory info.

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_[View the full topic](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590)._