# Host validation error on deployment step **URL:** \ **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:** 8\ **Page:** 2
**Author:** ![dellgreen](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/dellgreen/32/85_2.png) [@dellgreen](https://hub.mender.io/u/dellgreen)\ **Post date:** [May 5, 2021, 8:47am UTC](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590/21 "2021-05-05T08:47:45Z")
personally at this point i usually spin up a previous version v2.6 to narrow down whether the issues you are experiencing are confined to the latest version or not. ---
**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 5, 2021, 8:56am UTC](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590/22 "2021-05-05T08:56:51Z")
So unfortunate. Let me try 2.6 then I’ll post back. Thanks. ---
**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 6, 2021, 8:48am UTC](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590/23 "2021-05-06T08:48:17Z")
Good news here, v2.6 seems working. I’ll go ahead with it. I believe providing a bit more info about my test environment(s) and how my Mender test attempt went could be beneficial for you to debug the issue(s). There’re 2 different servers used by our UI team. 1. “Application Server” 2. “Test Server” I was experimenting on the Application Server at first. However, there are other applications that occupy ports 80, 443, and 9000 (there is another minio instance deployed by the UI team). I tried to install Mender on this server by changing configurations (I mean re-mapping the ports) but failed with the v2.7 (because of the Go issue mentioned in [this reply](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590/9)) Then I tried installing v2.6 on App server, but failed again, couldn’t resolve how to re-map port bindings, and end up with a system that I cannot log in to (it was redirecting me to [https://myurl:443](https://myurl:443) which is occupied by another app and even I tried over [https://myurl:4430](https://myurl:4430), it was saying login name or pass is incorrect). After that I switched to Test server (since all ports are available and no overlapping applications) and installed v2.7, but Go parsing issue is raised again. Lastly, on the Test server, I tried v2.6 and it worked. I’ll go ahead with this server and installation for now (lacking new addons :(( ), but please let me know if I can provide any more information to figure out the issues. ---
**Author:** ![dellgreen](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/dellgreen/32/85_2.png) [@dellgreen](https://hub.mender.io/u/dellgreen)\ **Post date:** [May 6, 2021, 10:11am UTC](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590/24 "2021-05-06T10:11:12Z")
That’s good news, at least you can move forward for now, whilst the v2.7 issues are looked into. ---
**Author:** ![dellgreen](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/dellgreen/32/85_2.png) [@dellgreen](https://hub.mender.io/u/dellgreen)\ **Post date:** [May 6, 2021, 9:28pm UTC](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590/25 "2021-05-06T21:28:29Z")
Someone else getting the same GO error > [@Mender V2.7 deployment getting error](https://hub.mender.io/t/mender-v2-7-deployment-getting-error/3585/5): > > hi, I’m not sure which artifact storage you’re using the URI - [ec2-XX-XXX-XXX-XXX.compute-1.amazonaws.com](http://ec2-XX-XXX-XXX-XXX.compute-1.amazonaws.com) may suggest you’re using actual amazon AWS, but you have minio in your setup too; if you’re using amazon AWS for storing artifacts try to remove networks part of the mender-api-gateway section; the result should be like this [prod.yaml](https://hub.mender.io/uploads/short-url/bZEBmZTuzB6lwEdIxelQalKVPbB.yaml) (4.9 KB) ---
**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 7, 2021, 4:38pm UTC](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590/26 "2021-05-07T16:38:58Z")
Seems so. Should I update the title? Maybe there’re other people having the same Go issue and can’t find an open discussion. ---
**Author:** ![dellgreen](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/dellgreen/32/85_2.png) [@dellgreen](https://hub.mender.io/u/dellgreen)\ **Post date:** [May 8, 2021, 12:29am UTC](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590/27 "2021-05-08T00:29:40Z")
maybe leave title as is as this issue is now cross-linked with the other one ---
**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 8, 2021, 10:53am UTC](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590/28 "2021-05-08T10:53:14Z")
ok then 👍 [Previous page](https://hub.mender.io/t/host-validation-error-on-deployment-step/3590.md?page=1)