Title: Stack LEMP ubuntu: error 500 http_request_failed – cURL error Last modified: November 29, 2019 --- # Stack LEMP ubuntu: error 500 http_request_failed – cURL error * Resolved [Branko](https://wordpress.org/support/users/lookiz/) * (@lookiz) * [6 years, 6 months ago](https://wordpress.org/support/topic/stack-lemp-ubuntu-error-500-http_request_failed-curl-error/) * Hello, * I installed a lemp stack (nginx) on ubuntu 18.04. installed wordpress but the plugin returns the error test: * Test Result: Errore: 500 – http_request_failed – cURL error 28: Operation timed out after 20001 milliseconds with 0 bytes received * how can I solve this problem? * thanks Viewing 7 replies - 1 through 7 (of 7 total) * [Manzoor Wani](https://wordpress.org/support/users/manzoorwanijk/) * (@manzoorwanijk) * [6 years, 6 months ago](https://wordpress.org/support/topic/stack-lemp-ubuntu-error-500-http_request_failed-curl-error/#post-12189294) * A few questions: 1. When does it happen? During testing or when sending the posts? 2. Is the message sent to Telegram? 3. Is your host in Russia or Iran which blocks Telegram? * Thread Starter [Branko](https://wordpress.org/support/users/lookiz/) * (@lookiz) * [6 years, 6 months ago](https://wordpress.org/support/topic/stack-lemp-ubuntu-error-500-http_request_failed-curl-error/#post-12189702) * during the token bot test no the message is not sent my datacenter is in Moldova * [Manzoor Wani](https://wordpress.org/support/users/manzoorwanijk/) * (@manzoorwanijk) * [6 years, 6 months ago](https://wordpress.org/support/topic/stack-lemp-ubuntu-error-500-http_request_failed-curl-error/#post-12189758) * It seems to be some issue with PHP set up. Do you use a VPS or shared hosting? * Thread Starter [Branko](https://wordpress.org/support/users/lookiz/) * (@lookiz) * [6 years, 6 months ago](https://wordpress.org/support/topic/stack-lemp-ubuntu-error-500-http_request_failed-curl-error/#post-12189804) * I use a dedicated server, my configuration looks good everything works, Site Health WP is ok no error * [Manzoor Wani](https://wordpress.org/support/users/manzoorwanijk/) * (@manzoorwanijk) * [6 years, 6 months ago](https://wordpress.org/support/topic/stack-lemp-ubuntu-error-500-http_request_failed-curl-error/#post-12190394) * If you have command line access to the server, can you please try `ping telegram. org` and `ping api.telegram.org`? You can send the results to our support on Telegram ([@WPTelegramSupport](https://t.me/WPTelegramSupport)) to have a look. * Thread Starter [Branko](https://wordpress.org/support/users/lookiz/) * (@lookiz) * [6 years, 6 months ago](https://wordpress.org/support/topic/stack-lemp-ubuntu-error-500-http_request_failed-curl-error/#post-12191644) * here are the ping results * $ ping telegram.org PING telegram.org (149.154.167.99) 56(84) bytes of data. From 87.245.213.247 (87.245.213.247) icmp_seq=9 Packet filtered From 87.245.213.247( 87.245.213.247) icmp_seq=12 Packet filtered ^C — telegram.org ping statistics— 105 packets transmitted, 0 received, +2 errors, 100% packet loss, time 106430ms * $ ping api.telegram.org PING api.telegram.org (149.154.167.220) 56(84) bytes of data. 64 bytes from 149.154.167.220 (149.154.167.220): icmp_seq=1 ttl=56 time =40.6 ms 64 bytes from 149.154.167.220 (149.154.167.220): icmp_seq=2 ttl=56 time =40.6 ms — api.telegram.org ping statistics — 37 packets transmitted, 37 received, 0% packet loss, time 36026ms rtt min/avg/max/mdev = 40.675/40.834/43.463/0.462 ms * [Manzoor Wani](https://wordpress.org/support/users/manzoorwanijk/) * (@manzoorwanijk) * [6 years, 6 months ago](https://wordpress.org/support/topic/stack-lemp-ubuntu-error-500-http_request_failed-curl-error/#post-12191708) * It seems like there is some host in your network route that blocks Telegram. It may be a Russian host, because they block Telegram. You can contact your server provider and ask about requests to api.telegram.org being timed out. Viewing 7 replies - 1 through 7 (of 7 total) The topic ‘Stack LEMP ubuntu: error 500 http_request_failed – cURL error’ is closed to new replies. * ![](https://ps.w.org/wptelegram/assets/icon-256x256.png?rev=2500018) * [WP Telegram (Auto Post and Notifications)](https://wordpress.org/plugins/wptelegram/) * [Frequently Asked Questions](https://wordpress.org/plugins/wptelegram/#faq) * [Support Threads](https://wordpress.org/support/plugin/wptelegram/) * [Active Topics](https://wordpress.org/support/plugin/wptelegram/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wptelegram/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wptelegram/reviews/) * 7 replies * 2 participants * Last reply from: [Manzoor Wani](https://wordpress.org/support/users/manzoorwanijk/) * Last activity: [6 years, 6 months ago](https://wordpress.org/support/topic/stack-lemp-ubuntu-error-500-http_request_failed-curl-error/#post-12191708) * Status: resolved