Title: Object Cache “Connection Test: Failed” Last modified: September 12, 2023 --- # Object Cache “Connection Test: Failed” * Resolved [authentico](https://wordpress.org/support/users/authentico/) * (@authentico) * [2 years, 9 months ago](https://wordpress.org/support/topic/object-cache-connection-test-failed-3/) * Hi, I have multiple sites running on seperate shared hosting accounts on **Stablehost** which runs **LiteSpeed Servers**. * I had the Litespeed-Cache WP plugin + Object Cache (Memcached) working for a few months without issues, and this week I noticed Memcached can’t connect. * ```wp-block-code PHP Version: 8.1.22 Server API: LiteSpeed V8.1 Cloudlinux 1.3 Memcached Version: 3.1.5 libmemcached version: 1.0.18 Status Memcached Extension: Enabled Redis Extension: Disabled Connection Test: Failed (Learn More) Host: localhost Port: 11211 ``` * I went to **Learn More** and setup the Test file to connect to Memcached. * ```wp-block-code addServer('localhost', 11211); print_r($m->getServerList()); echo '
'; $key = "test_key"; $value = "Hello, Memcached!"; $expiration = 3600; try { // Set value: $m->set($key, $value, $expiration); // Read value: if ($m->get($key)) { echo "Value successfully set in Memcached."; } else { echo "Failed to set value in Memcached."; } } catch (Exception $e) { echo "An error occurred: " . $e->getMessage(); } ``` * Results: * ```wp-block-code Array ( [0] => Array ( [host] => localhost [port] => 11211 [type] => TCP ) ) Failed to set value in Memcached. ``` - Connection seems to be established and returns a list that contains 1 server. - But when I expanded script with set/get, it fails to return the value, so seems that value isn’t being set. - PHP doesn’t throw any errors. * I contacted Stablehost and asked them to restart the Memcached server, to which they told me (1) they can’t restart Memcached on a shared host, and (2) to contact the plugin creator. * I said: that doesn’t make sense, because even without the plugin, I can’t connect to Memcached. To which they wasted my time by making me wait an hour saying “ I’m looking into it”, and when I left, told me to contact the plugin creator. * Do you have any idea what could be wrong? * To me looks like Memcached is blocked/frozen and needs a restart, but I wanted to double-check with you. * This isn’t even just one website, (1) it’s all my WordPress websites on this one shared account, and (2) I also manage a second account on Stablehost in WordPress + LiteSpeed-Cache and it has the same issue now. So it’s a cross-account problem at this point. * It’s a Stablehost server issue, right? * I tried using Redis and I’m getting the same issue there as well (I know it says Disabled here, but I only Enable either-or, turned it off after it wasn’t working). - This topic was modified 2 years, 9 months ago by [authentico](https://wordpress.org/support/users/authentico/). - This topic was modified 2 years, 9 months ago by [authentico](https://wordpress.org/support/users/authentico/). - This topic was modified 2 years, 9 months ago by [authentico](https://wordpress.org/support/users/authentico/). - This topic was modified 2 years, 9 months ago by [authentico](https://wordpress.org/support/users/authentico/). - This topic was modified 2 years, 9 months ago by [authentico](https://wordpress.org/support/users/authentico/). Viewing 3 replies - 1 through 3 (of 3 total) * Plugin Support [qtwrk](https://wordpress.org/support/users/qtwrk/) * (@qtwrk) * [2 years, 9 months ago](https://wordpress.org/support/topic/object-cache-connection-test-failed-3/#post-17045915) * if that test script does not work , then it must be something wrong on the server- side , most likely the Memcached is not running or not working * Thread Starter [authentico](https://wordpress.org/support/users/authentico/) * (@authentico) * [2 years, 9 months ago](https://wordpress.org/support/topic/object-cache-connection-test-failed-3/#post-17045974) * Thanks, that validation makes me feel less like I’m crazy in thinking they didn’t do their job at Stablehost to investigate the issue with the server. - This reply was modified 2 years, 9 months ago by [authentico](https://wordpress.org/support/users/authentico/). * Plugin Support [qtwrk](https://wordpress.org/support/users/qtwrk/) * (@qtwrk) * [2 years, 9 months ago](https://wordpress.org/support/topic/object-cache-connection-test-failed-3/#post-17046008) * well , I probably can not tell you where is problem , but I suppose I can tell you where the problem did not come from * obvious that test script just a simpe PHP script , without involving cache plugin, so obviously , it must be something from the server , * if you have SSH access to server, can try `telnet 127.0.0.1 11211` first , or maybe your Memcached was configured as unix socket mode , I have that on shared hosting , to isolate the data from other user Viewing 3 replies - 1 through 3 (of 3 total) The topic ‘Object Cache “Connection Test: Failed”’ is closed to new replies. * ![](https://ps.w.org/litespeed-cache/assets/icon-256x256.png?rev=2554181) * [LiteSpeed Cache](https://wordpress.org/plugins/litespeed-cache/) * [Frequently Asked Questions](https://wordpress.org/plugins/litespeed-cache/#faq) * [Support Threads](https://wordpress.org/support/plugin/litespeed-cache/) * [Active Topics](https://wordpress.org/support/plugin/litespeed-cache/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/litespeed-cache/unresolved/) * [Reviews](https://wordpress.org/support/plugin/litespeed-cache/reviews/) * 3 replies * 2 participants * Last reply from: [qtwrk](https://wordpress.org/support/users/qtwrk/) * Last activity: [2 years, 9 months ago](https://wordpress.org/support/topic/object-cache-connection-test-failed-3/#post-17046008) * Status: resolved