Title: Jetpack invalid_client plugin re-activation error Last modified: August 24, 2016 --- # Jetpack invalid_client plugin re-activation error * [Taylor](https://wordpress.org/support/users/buley/) * (@buley) * [11 years, 1 month ago](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error-1/) * When I try to activate Jetpack on a site, I get the following error: * Invalid request, please go back and try again. Error Code: invalid_client Error Message: Unknown client_id. * > [View post on imgur.com](https://imgur.com/tbjSzBj) * This appears on WordPress.com servers at a URL like this: [https://jetpack.wordpress.com/jetpack.authorize/1/?response_type=code&client_id=1&redirect_uri=$](https://jetpack.wordpress.com/jetpack.authorize/1/?response_type=code&client_id=1&redirect_uri=$){ siteurl} * I’ve zapped the local wp_options rows and tried various judo but can’t seem to re-connect. From the only [other](https://wordpress.org/support/topic/problem-restoring-jetpack-stats?replies=13) [threads](https://wordpress.org/support/topic/jetpack-social-media-sharing-icons-not-showing-up?replies=4) on the topic this appears to be something on the WordPress.com side, perhaps my site villagelife.com needs to be manually disconnected. * Anyone know how I’d go about requesting that? * (Also posted on [.org](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error?replies=3#post-6868246), where someone suggested I crosspost here.) * [https://wordpress.org/plugins/jetpack/](https://wordpress.org/plugins/jetpack/) Viewing 9 replies - 1 through 9 (of 9 total) * Plugin Author [Jeremy Herve](https://wordpress.org/support/users/jeherve/) * (@jeherve) * Jetpack Mechanic 🚀 * [11 years, 1 month ago](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error-1/#post-6057683) * Could you try to completely delete the plugin from the Plugins menu, and then reinstall from scratch? * Let me know how it goes. * [David](https://wordpress.org/support/users/dcsolida/) * (@dcsolida) * [11 years, 1 month ago](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error-1/#post-6057785) * I’m also seeing that on one of our sites. We’ve got a multi-site installation, so I’d rather not uninstall/reinstall. * I first noticed my own blog hosted on the server had a message that WordPress. com had different siteurl and home info than the site’s settings. Don’t know how that happened, as I’d had Jetpack connected for quite a while. I disconnected it and reconnected it without difficulty yesterday. * Today a student came in and was getting the same message at the top of her admin dashboard. What’s strange is that I use a custom domain on my blog, but she didn’t have that on her site. I disconnected and, when I tried to reconnect, that’s when I got the error buley copied above. I tried in Chrome and in Firefox and got the same error in both browsers. * Being a superadmin, I checked 6-8 other sites and didn’t see the discrepancy message on any other dashboard. I found one site that had not been connected before. I connected it to WordPress.com without problem. I haven’t tried disconnecting other sites, but am willing to do so. * Plugin Author [Jeremy Herve](https://wordpress.org/support/users/jeherve/) * (@jeherve) * Jetpack Mechanic 🚀 * [11 years, 1 month ago](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error-1/#post-6057786) * [@dcsolida](https://wordpress.org/support/users/dcsolida/) could you try to delete the `jetpack_options` row in the `wp_options` table for that subsite, and see if it helps when they try to reconnect? * Thread Starter [Taylor](https://wordpress.org/support/users/buley/) * (@buley) * [11 years, 1 month ago](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error-1/#post-6057795) * I reinstalled and zapped the options, seemingly to no avail. The `clientid=1` param is generated on the WordPress side, which I didn’t notice before, so you’d think that uninstall/reinstall would work but I’m not yet seeing this to be the case. Trying again soon. * [dgfrench](https://wordpress.org/support/users/dgfrench/) * (@dgfrench) * [10 years, 5 months ago](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error-1/#post-6057954) * I ran into the same error message on one of my sites after Jetpack being installed& activated for quite a while (2 years+). After deactivating & reactivating everything seems to be working but I have some concerns about why this has happened in the first place. * Any feedback would be greatly appreciated. * Plugin Author [Jeremy Herve](https://wordpress.org/support/users/jeherve/) * (@jeherve) * Jetpack Mechanic 🚀 * [10 years, 5 months ago](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error-1/#post-6057955) * > why this has happened in the first place. * That’s something we’re looking into. You can follow our progress here: [https://github.com/Automattic/jetpack/issues/2218](https://github.com/Automattic/jetpack/issues/2218) * [dgfrench](https://wordpress.org/support/users/dgfrench/) * (@dgfrench) * [10 years, 5 months ago](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error-1/#post-6057956) * Thank you Jeremy! If I can help in any way please let me know. * [Eric Nemchik](https://wordpress.org/support/users/ixnyne/) * (@ixnyne) * [10 years, 5 months ago](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error-1/#post-6057957) * The 3.8.2 update just took 3 of my sites offline while trying to update through the built in wordpress updater. I deleted the /jetpack/ directory from all 3 and uploaded a fresh copy from WordPress.org . I also had to manually activate, then deactivate, and then reactivate the plugin after reuploading it in order to get jetpack to reconnect. Prior to doing all of this I had the same invalid_client message everyone else is mentioning. * Thread Starter [Taylor](https://wordpress.org/support/users/buley/) * (@buley) * [10 years, 5 months ago](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error-1/#post-6057958) * Possibly related interaction: [http://i.imgur.com/F5DATF9.gif](http://i.imgur.com/F5DATF9.gif) * Does everyone have a Memcache backend or was that just me? That seemed like a possible correlating factor according to the Github issue. Viewing 9 replies - 1 through 9 (of 9 total) The topic ‘Jetpack invalid_client plugin re-activation error’ is closed to new replies. * ![](https://ps.w.org/jetpack/assets/icon.svg?rev=2819237) * [Jetpack - WP Security, Backup, Speed, & Growth](https://wordpress.org/plugins/jetpack/) * [Frequently Asked Questions](https://wordpress.org/plugins/jetpack/#faq) * [Support Threads](https://wordpress.org/support/plugin/jetpack/) * [Active Topics](https://wordpress.org/support/plugin/jetpack/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/jetpack/unresolved/) * [Reviews](https://wordpress.org/support/plugin/jetpack/reviews/) * 9 replies * 5 participants * Last reply from: [Taylor](https://wordpress.org/support/users/buley/) * Last activity: [10 years, 5 months ago](https://wordpress.org/support/topic/jetpack-invalid_client-plugin-re-activation-error-1/#post-6057958) * Status: not resolved