Title: Authentication Failed when Connecting to API Last modified: November 10, 2022 --- # Authentication Failed when Connecting to API * Resolved [maltandmardle](https://wordpress.org/support/users/maltandmardle/) * (@maltandmardle) * [3 years, 7 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/) * We had previously had zettle connected and working with our site but a couple of days ago new products were not syncing. I disconnected the API while troubleshooting and when I tried to reestablish the connection it now says Authentication Failed. * I have reinstalled the plugin and checked everything is updated but I am still getting Authentication Failed. * The logs have been showing this message since this problem started: * ``` 2022-11-10T00:38:37+00:00 INFO ZettleRestException: UNKNOWN Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self Violations: [] Thrown in /var/www/wp-content/plugins/zettle-pos-integration/modules/zettle-php-sdk/src/Psr18RestClient.php:184 With data: [] and payload: [] 2022-11-10T00:38:37+00:00 DEBUG Settings check failed. Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self 2022-11-10T11:18:18+00:00 INFO ZettleRestException: UNKNOWN Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self ``` Viewing 15 replies - 1 through 15 (of 17 total) 1 [2](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/page/2/?output_format=md) [→](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/page/2/?output_format=md) * Thread Starter [maltandmardle](https://wordpress.org/support/users/maltandmardle/) * (@maltandmardle) * [3 years, 7 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16193241) * Having spent the weekend troubleshooting I have identified the issue to being the plugin not establishing webhooks. * When reinstalling the plugin the only line in the log is the following: * 2022-11-13T10:48:31+00:00 DEBUG Added 1 jobs to the queue * This is instead of the expected log from the documentation. * I have gone on to test a woocommerce webhook using RequestBin and found the webhook worked so the site isn’t suddenly blocking webhooks. * I’ve done all this with all plugins disabled expect woocommerce and zettle POS. Any ideas on what would be stopping the webhook from establishing? * Thread Starter [maltandmardle](https://wordpress.org/support/users/maltandmardle/) * (@maltandmardle) * [3 years, 7 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16193363) * I have also just loaded a backup of the site from Sunday when the plugin was working as we updated inventory. * I found the same error is occurring. Using WP Data Access I can see an item is added to the zettle-queue to register a webhook but it is not removed or actioned. * I have copied my current woocommerce status below: * > ``` > ### WordPress Environment ### > > WordPress address (URL): https://maltandmardle.co.uk > Site address (URL): https://maltandmardle.co.uk > WC Version: 7.1.0 > REST API Version: ✔ 7.1.0 > WC Blocks Version: ✔ 8.7.5 > Action Scheduler Version: ✔ 3.4.0 > Log Directory Writable: ✔ > WP Version: ❌ 6.0.3 - There is a newer version of WordPress available (6.1) > WP Multisite: – > WP Memory Limit: 512 MB > WP Debug Mode: – > WP Cron: ✔ > Language: en_GB > External object cache: ✔ > > ### Server Environment ### > > Server Info: Apache > PHP Version: 8.0.22 > PHP Post Max Size: 100 MB > PHP Time Limit: 300 > PHP Max Input Vars: 1000 > cURL Version: 7.80.0 > OpenSSL/1.1.1q > > SUHOSIN Installed: – > MySQL Version: 5.7.26-29-log > Max Upload Size: 100 MB > Default Timezone is UTC: ✔ > fsockopen/cURL: ✔ > SoapClient: ✔ > DOMDocument: ✔ > GZip: ✔ > Multibyte String: ✔ > Remote Post: ✔ > Remote Get: ✔ > > ### Database ### > > WC Database Version: 7.1.0 > WC Database Prefix: wp_fwmr5vm7x0_ > Total Database Size: 23.17MB > Database Data Size: 18.41MB > Database Index Size: 4.76MB > wp_fwmr5vm7x0_woocommerce_sessions: Data: 0.06MB + Index: 0.02MB + Engine InnoDB > wp_fwmr5vm7x0_woocommerce_api_keys: Data: 0.02MB + Index: 0.03MB + Engine InnoDB > wp_fwmr5vm7x0_woocommerce_attribute_taxonomies: Data: 0.02MB + Index: 0.02MB + Engine InnoDB > wp_fwmr5vm7x0_woocommerce_downloadable_product_permissions: Data: 0.02MB + Index: 0.06MB + Engine InnoDB > wp_fwmr5vm7x0_woocommerce_order_items: Data: 0.02MB + Index: 0.02MB + Engine InnoDB > wp_fwmr5vm7x0_woocommerce_order_itemmeta: Data: 0.06MB + Index: 0.03MB + Engine InnoDB > wp_fwmr5vm7x0_woocommerce_tax_rates: Data: 0.02MB + Index: 0.06MB + Engine InnoDB > wp_fwmr5vm7x0_woocommerce_tax_rate_locations: Data: 0.02MB + Index: 0.03MB + Engine InnoDB > 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mailpoet_page: 1 > nav_menu_item: 43 > page: 24 > popup: 2 > popup_theme: 8 > post: 2 > product: 43 > product_variation: 3 > revision: 90 > seedprod: 2 > shop_coupon: 5 > wp_block: 4 > wp_global_styles: 5 > > ### Security ### > > Secure connection (HTTPS): ✔ > Hide errors from visitors: ✔ > > ### Active Plugins (5) ### > > Child Theme Configurator: by Lilaea Media – 2.6.0 > CMP - Coming Soon & Maintenance Plugin: by NiteoThemes – 4.1.5 > WooCommerce: by Automattic – 7.1.0 > WP Data Access: by Passionate Programmers B.V. – 5.2.8 > PayPal Zettle POS: by PayPal – 1.5.4 > > ### Inactive Plugins (13) ### > > Age Gate: by Phil Baker – 3.0.9 > Ajax add to cart for WooCommerce: by QuadLayers – 1.3.8 > CoBlocks: by GoDaddy – 2.25.0 > Complianz | GDPR/CCPA Cookie Consent: by Really Simple Plugins – 6.3.5 > Jetpack: by Automattic – 11.5.1 > Site Kit by Google: by Google – 1.87.0 > Sucuri Security - Auditing, Malware Scanner and Hardening: by Sucuri Inc. – 1.8.35 > WooCommerce Blocks: by Automattic – 8.8.2 > WooCommerce Payments: by Automattic – 5.0.1 > WooCommerce PayPal Payments: by WooCommerce – 1.9.5 > WooCommerce Shipping & Tax: by WooCommerce – 1.26.3 > WP Crontrol: by John Blackbourn & crontributors – 1.14.0 > Yoast SEO: by Team Yoast – 19.10 > > ### Dropin Plugins (2) ### > > db-error.php: db-error.php > object-cache.php: object-cache.php > > ### Must Use Plugins (2) ### > > Object Cache Pro (MU): by Rhubarb Group – 1.16.4 > System Plugin: by – 4.51.1 > > ### Settings ### > > API Enabled: – > Force SSL: – > Currency: GBP (£) > Currency Position: left > Thousand Separator: , > Decimal Separator: . > Number of Decimals: 2 > Taxonomies: Product Types: external (external) > grouped (grouped) > simple (simple) > variable (variable) > > Taxonomies: Product Visibility: exclude-from-catalog (exclude-from-catalog) > exclude-from-search (exclude-from-search) > featured (featured) > outofstock (outofstock) > rated-1 (rated-1) > rated-2 (rated-2) > rated-3 (rated-3) > rated-4 (rated-4) > rated-5 (rated-5) > > Connected to WooCommerce.com: ✔ > Enforce Approved Product Download Directories: ✔ > > ### WC Pages ### > > Shop base: #2193 - /test-shop/ > Basket: #3105 - /basket/ > Checkout: #3133 - /checkout/ > My account: #1155 - /my-account/ > Terms and conditions: #3014 - /terms-and-conditions/ > > ### Theme ### > > Name: Storefront Child 02 > Version: 4.1.2.1663255351 > Author URL: https://woocommerce.com/ > Child Theme: ✔ > Parent Theme Name: Storefront > Parent Theme Version: 4.1.3 > Parent Theme Author URL: https://woocommerce.com/ > WooCommerce Support: ✔ > > ### Templates ### > > Overrides: – > > ### Admin ### > > Enabled Features: activity-panels > analytics > coupons > customer-effort-score-tracks > experimental-products-task > experimental-import-products-task > experimental-fashion-sample-products > shipping-smart-defaults > shipping-setting-tour > homescreen > marketing > multichannel-marketing > mobile-app-banner > navigation > onboarding > onboarding-tasks > remote-inbox-notifications > remote-free-extensions > payment-gateway-suggestions > shipping-label-banner > subscriptions > store-alerts > transient-notices > woo-mobile-welcome > wc-pay-promotion > wc-pay-welcome-page > > Disabled Features: minified-js > new-product-management-experience > settings > > Daily Cron: ✔ Next scheduled: 2022-11-07 15:16:02 +00:00 > Options: ✔ > Notes: 89 > Onboarding: completed > > ### Action Scheduler ### > > Canceled: 2 > Oldest: 2022-11-03 16:27:19 +0000 > Newest: 2022-11-03 17:13:31 +0000 > > Complete: 729 > Oldest: 2022-10-13 13:32:59 +0000 > Newest: 2022-11-13 12:08:37 +0000 > > Pending: 2 > Oldest: 2022-11-13 12:30:49 +0000 > Newest: 2022-11-14 11:30:49 +0000 > > ### PayPal Zettle POS ### > > Onboarding state: > > ### Status report information ### > > Generated at: 2022-11-13 12:13:56 +00:00 > ``` > * Plugin Support [Syde Joost](https://wordpress.org/support/users/joostvandevijver/) * (@joostvandevijver) * [3 years, 7 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16194966) * Hello [@maltandmardle](https://wordpress.org/support/users/maltandmardle/) * Sorry for the delay in my response. * If you tested the function of the Zettle plugin without the other plugins active and the theme replaced (by default storefront theme), then you made a good start with troubleshooting. In this case, there are 2 options left: 1) Server issue Zettle – I just checked the [Zettle status site](https://status.zettle.com/) and see there was some issue on the 10th, but currently everything seems to be fine. Can you check again? 2) Account details stored incorrectly – It could be that the database was corrupted, or somehow the account details were adjusted, and it can’t access the Zettle server any longer. You might want to disconnect your account and onboard the account again. Be sure to not overwrite all products, so that you don’t lose all history of your previous work (by choosing “Add WooCommerce Products” in step 2/6 of onboarding). * Please let me know if any of these options help you resolve the issue. * Kind regards, Joost * Thread Starter [maltandmardle](https://wordpress.org/support/users/maltandmardle/) * (@maltandmardle) * [3 years, 7 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16196165) * Hi [@joostvandevijver](https://wordpress.org/support/users/joostvandevijver/) * I just tried again and have encountered the same problem. * I am on the storefront theme and deactivated and reactivated only the woocommerce and zettle plugins, no other plugins were running. I then went to the connect and created a new API key but didnt make it past step 1, encountering Authentication Failed again at step 2. * The log is showing the following lines repeating which I assume are failed connection attempts. * > ``` > Violations: [] > Thrown in /var/www/wp-content/plugins/zettle-pos-integration/modules/zettle-php-sdk/src/Psr18RestClient.php:184 > With data: [] > and payload: [] > 2022-11-14T12:08:08+00:00 DEBUG Settings check failed. Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > 2022-11-14T12:08:10+00:00 INFO ZettleRestException: UNKNOWN > Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > > Violations: [] > Thrown in /var/www/wp-content/plugins/zettle-pos-integration/modules/zettle-php-sdk/src/Psr18RestClient.php:184 > With data: [] > and payload: [] > 2022-11-14T12:08:10+00:00 DEBUG Settings check failed. Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > 2022-11-14T12:08:22+00:00 INFO ZettleRestException: UNKNOWN > Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > > Violations: [] > Thrown in /var/www/wp-content/plugins/zettle-pos-integration/modules/zettle-php-sdk/src/Psr18RestClient.php:184 > With data: [] > and payload: [] > 2022-11-14T12:08:22+00:00 DEBUG Settings check failed. Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > 2022-11-14T12:08:22+00:00 INFO ZettleRestException: UNKNOWN > Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > > Violations: [] > Thrown in /var/www/wp-content/plugins/zettle-pos-integration/modules/zettle-php-sdk/src/Psr18RestClient.php:184 > With data: [] > and payload: [] > 2022-11-14T12:08:22+00:00 DEBUG Settings check failed. Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > 2022-11-14T12:08:28+00:00 INFO ZettleRestException: UNKNOWN > Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > > Violations: [] > Thrown in /var/www/wp-content/plugins/zettle-pos-integration/modules/zettle-php-sdk/src/Psr18RestClient.php:184 > With data: [] > and payload: [] > 2022-11-14T12:08:28+00:00 DEBUG Settings check failed. Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > 2022-11-14T12:08:31+00:00 INFO ZettleRestException: UNKNOWN > Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > > Violations: [] > Thrown in /var/www/wp-content/plugins/zettle-pos-integration/modules/zettle-php-sdk/src/Psr18RestClient.php:184 > With data: [] > and payload: [] > 2022-11-14T12:08:31+00:00 DEBUG Settings check failed. Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > 2022-11-14T12:08:34+00:00 INFO ZettleRestException: UNKNOWN > Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > > Violations: [] > Thrown in /var/www/wp-content/plugins/zettle-pos-integration/modules/zettle-php-sdk/src/Psr18RestClient.php:184 > With data: [] > and payload: [] > 2022-11-14T12:08:34+00:00 DEBUG Settings check failed. Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > 2022-11-14T12:08:37+00:00 INFO ZettleRestException: UNKNOWN > Got status 410 when sending GET request to https://secure.izettle.com/api/resources/organizations/self > ``` > * Thread Starter [maltandmardle](https://wordpress.org/support/users/maltandmardle/) * (@maltandmardle) * [3 years, 7 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16198141) * I’ve just noticed the following error message appears on the Authentication failed page when I try to connect to the api. * Registration of the webhooks has failed, please check the Log and reach out the support. * Plugin Support [Syde Joost](https://wordpress.org/support/users/joostvandevijver/) * (@joostvandevijver) * [3 years, 7 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16198990) * Hello [@maltandmardle](https://wordpress.org/support/users/maltandmardle/) * I am checking with our developers team and the PayPal server team if they are known with this error. I have not seen it, but it sounds a bit like a server issue (not a plugin issue). When I know more, I will let you know. * Kind regards, Joost * Thread Starter [maltandmardle](https://wordpress.org/support/users/maltandmardle/) * (@maltandmardle) * [3 years, 7 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16200790) * [@joostvandevijver](https://wordpress.org/support/users/joostvandevijver/) thank you for following up. * I’m spent more time today troubleshooting this issue. just thought I’d let you know that I’ve checked with my hosting provider who have said no connections are being blocked from their end so I can rule that out. - This reply was modified 3 years, 7 months ago by [maltandmardle](https://wordpress.org/support/users/maltandmardle/). * Plugin Support [Syde Joost](https://wordpress.org/support/users/joostvandevijver/) * (@joostvandevijver) * [3 years, 6 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16203135) * Thank you [@maltandmardle](https://wordpress.org/support/users/maltandmardle/) that would have been the next question from our end, so it is appreciated. I just chased the Zettle team to check if they have investigated this already. Pending their response. * Thread Starter [maltandmardle](https://wordpress.org/support/users/maltandmardle/) * (@maltandmardle) * [3 years, 6 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16203926) * [@joostvandevijver](https://wordpress.org/support/users/joostvandevijver/) * Thanks for chasing. * I’ve been looking at the behavior of some of the sql tables. I’ve noticed that when I install the plugin and item is added to wp_zettle_queue. It has these values: ID: 1 Hash: 327112397da7b12dede0da434e995ad8 Type: webhook-registration Args: {} Site ID: 1 * As I then go through the connection process nothing changes to this queue item. I’m not sure how your plugin works but is this an issue? Seems strange that the webhook registration doesnt leave the queue and has no args. * Plugin Support [Syde Joost](https://wordpress.org/support/users/joostvandevijver/) * (@joostvandevijver) * [3 years, 6 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16205031) * Hello [@maltandmardle](https://wordpress.org/support/users/maltandmardle/) * the Zettle server team also took a look at this situation and responded: * > I just tried it with the actual user account and I get a HTTP 200 response > with the expected data: > The only explanation > I can come up with is that this was a temporary glitch, can you please check > with the user if they still experience this issue? * Can you let us know what the current status is on your side? * Kind regards, Joost * Thread Starter [maltandmardle](https://wordpress.org/support/users/maltandmardle/) * (@maltandmardle) * [3 years, 6 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16205875) * [@joostvandevijver](https://wordpress.org/support/users/joostvandevijver/) * No luck I’m afraid. Still getting authentication failed and the same log messages. * Is there any problem with me using a different API from when the plugin was originally working for me? I had to make a new one when I first started having issues and began troubleshooting as I didn’t log the client ID or api code. * Plugin Support [Syde Joost](https://wordpress.org/support/users/joostvandevijver/) * (@joostvandevijver) * [3 years, 6 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16207284) * Hello [@maltandmardle](https://wordpress.org/support/users/maltandmardle/) no, that does never cause any issues. I would actually try to reconnect again and again generating a new API, to see if that might helps? * Kind regards, Joost * Thread Starter [maltandmardle](https://wordpress.org/support/users/maltandmardle/) * (@maltandmardle) * [3 years, 6 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16208216) * [@joostvandevijver](https://wordpress.org/support/users/joostvandevijver/) * Tried again this morning with another new API key and I’m still receiving the same problem and error log. * Plugin Support [Syde Joost](https://wordpress.org/support/users/joostvandevijver/) * (@joostvandevijver) * [3 years, 6 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/#post-16208336) * Hello [@maltandmardle](https://wordpress.org/support/users/maltandmardle/) * we are not seeing any issue from our end and are running low on option to advise you on. We could take a closer look at the full log sand the environment if you could open a direct/private engagement with us following [these instructions](https://zettle.inpsyde.com/docs/request-support/). * This is not something we have encountered before, so it might take a bit more time for us to figure out what is causing this. * Kind regards, Joost * Thread Starter [maltandmardle](https://wordpress.org/support/users/maltandmardle/) * (@maltandmardle) * [3 years, 6 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/page/2/#post-16209374) * [@joostvandevijver](https://wordpress.org/support/users/joostvandevijver/) I just raised a ticket following the instructions. Hopefully we can find the route of the issue. Viewing 15 replies - 1 through 15 (of 17 total) 1 [2](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/page/2/?output_format=md) [→](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/page/2/?output_format=md) The topic ‘Authentication Failed when Connecting to API’ is closed to new replies. * ![](https://ps.w.org/zettle-pos-integration/assets/icon-256x256.png?rev=2694076) * [PayPal Zettle POS for WooCommerce](https://wordpress.org/plugins/zettle-pos-integration/) * [Frequently Asked Questions](https://wordpress.org/plugins/zettle-pos-integration/#faq) * [Support Threads](https://wordpress.org/support/plugin/zettle-pos-integration/) * [Active Topics](https://wordpress.org/support/plugin/zettle-pos-integration/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/zettle-pos-integration/unresolved/) * [Reviews](https://wordpress.org/support/plugin/zettle-pos-integration/reviews/) ## Tags * [Authentication Failed](https://wordpress.org/support/topic-tag/authentication-failed/) * 18 replies * 2 participants * Last reply from: [Syde Joost](https://wordpress.org/support/users/joostvandevijver/) * Last activity: [3 years, 6 months ago](https://wordpress.org/support/topic/authentication-failed-when-connecting-to-api/page/2/#post-16251057) * Status: resolved