# System error after License key changes **URL:** \ **Category:** General Inquries\ **Created:** [March 30, 2016, 3:45am UTC](https://forums.interworx.com/t/system-error-after-license-key-changes/13978 "2016-03-30T03:45:42Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![bblori](https://forums.interworx.com/letter_avatar_proxy/v4/letter/b/82dd89/32.png) [@bblori](https://forums.interworx.com/u/bblori)\ **Post date:** [March 30, 2016, 3:45am UTC](https://forums.interworx.com/t/system-error-after-license-key-changes/13978/1 "2016-03-30T03:45:42Z")
Hello, I have changed my Interworx dns server full license key with a new one domain license key in iworx.ini file and I runned this /home/interworx/cron/license.pex --sync to update license and also I rebooted the server, after all I got the following message: [B]System error message A system error has occurred. Please try your request again in a few minutes [/B]Can someone know how can be fixed the following issues, without reinstalling the server? I contacted the free license provider and Interworx support as well, none of them offered support for free license issues. Many thanks, ---
**Author:** ![d2d4j](https://forums.interworx.com/user_avatar/forums.interworx.com/d2d4j/32/16_2.png) [@d2d4j](https://forums.interworx.com/u/d2d4j)\ **Post date:** [March 30, 2016, 5:19am UTC](https://forums.interworx.com/t/system-error-after-license-key-changes/13978/2 "2016-03-30T05:19:13Z")
Hi Bblori I suspect your current server is locked to its IP address at the licence server on the old licence I think you ned to login to your account where the licence are, and reset the IP address, then check the free licence IP address and activate I hope that helps a little and sorry if I am wrong Many thanks John ---
**Author:** ![bblori](https://forums.interworx.com/letter_avatar_proxy/v4/letter/b/82dd89/32.png) [@bblori](https://forums.interworx.com/u/bblori)\ **Post date:** [March 30, 2016, 6:00am UTC](https://forums.interworx.com/t/system-error-after-license-key-changes/13978/3 "2016-03-30T06:00:49Z")
Hello John, Thank you very much for the prompt reply, I reseted the old IP, activated the new one, but still no success ☹ ---
**Author:** ![d2d4j](https://forums.interworx.com/user_avatar/forums.interworx.com/d2d4j/32/16_2.png) [@d2d4j](https://forums.interworx.com/u/d2d4j)\ **Post date:** [March 30, 2016, 6:26am UTC](https://forums.interworx.com/t/system-error-after-license-key-changes/13978/4 "2016-03-30T06:26:08Z")
Hi bblori Please could I ask if you have only 1 domain listed in IW (no secondary, sub domains etc) Also, does this domain match the domain IW CP use I am thinking then you may have more then 1 domain and this is stopping it Many thanks John ---
**Author:** ![vk1003](https://forums.interworx.com/letter_avatar_proxy/v4/letter/v/48db29/32.png) [@vk1003](https://forums.interworx.com/u/vk1003)\ **Post date:** [September 9, 2022, 6:31am UTC](https://forums.interworx.com/t/system-error-after-license-key-changes/13978/5 "2022-09-09T06:31:07Z")
hi there, i have got a new license key with a different mail id and the trial license key is with a different mail id… how to change it on the server side. pls advise ---
**Author:** ![IWorx-Jenna](https://forums.interworx.com/user_avatar/forums.interworx.com/iworx-jenna/32/41_2.png) [@IWorx-Jenna](https://forums.interworx.com/u/IWorx-Jenna)\ **Post date:** [September 9, 2022, 2:26pm UTC](https://forums.interworx.com/t/system-error-after-license-key-changes/13978/6 "2022-09-09T14:26:37Z")
Hello– I don’t know what a “mail id” is that you are referring to, but here is some documentation on how to update the key on your server: [How to: Change an InterWorx License Key — InterWorx documentation](https://appendix.interworx.com/current/nodeworx/general/license_management/change-interworx-license-key.html) As a note, all of our documentation can be found at [docs.interworx.com](http://docs.interworx.com), which redirects to the appendix site above. Thanks, -Jenna Friendly Neighborhood InterWorx Support Mananger