--- title: Troublshooting url: 'https://faq.servetheworld.net/myserve/en/acronis-backup-cloud/feilsoking' markdown: 'https://faq.servetheworld.net/myserve/en/acronis-backup-cloud/feilsoking.md' lang: en date: '2026-09-17' description: 'Backup fails in Acronis Backup Cloud Backup fails with one of the following symptom(s): Server is offline (grey) in the control panel https://baas.stwcp.net Error message "Cannot allocate memory" Error message "The backup agent was offline at a scheduled backup time" Suggested solution…' --- [](#)- [Norsk](https://faq.servetheworld.net/myserve/no/acronis-backup-cloud/feilsoking) - [English](https://faq.servetheworld.net/myserve/en/acronis-backup-cloud/feilsoking) [ STW Knowledge Base ](https://faq.servetheworld.net/myserve/en) [ Acronis Backup Cloud ](https://faq.servetheworld.net/myserve/en/acronis-backup-cloud) Troublshooting # Troublshooting #### Backup fails in Acronis Backup Cloud Backup fails with one of the following symptom(s): - Server is offline (grey) in the control panel - Error message "*Cannot allocate memory*" - Error message "*The backup agent was offline at a scheduled backup time*" ![](https://faq.servetheworld.net/myserve/images/0/5/4/7/b/0547b17c4c97ef7d52ff392b6b0d4734a3639a77-offlineacronis.png) **Suggested solution**: Restart the Acronis agent - [Linux](#efb7f416ab0) - [Windows](#efb7f416ab1) **/etc/init.d/acronis\_mms restart** or **systemctl restart acronis\_mms** Relevant ports must be open on the server (e.g. iptables, firewalld) for outgoing TCP traffic. - 443 - 8443 - 7770-7800 - 44445 Run the diagnostic tool to verify that the server has access via the relevant ports: [https://kb.acronis.com/content/47678#Linux\_64bit1](https://kb.acronis.com/content/47678#Linux_64bit1) Restart Acronis MMS (Managed Machine Service) via **Start->Run->Services.msc** Relevant ports must be open on the server (Windows Firewall) for outgoing TCP traffic. - 443 - 8443 - 7770-7800 - 44445 Run the diagnostic tool to verify that the server has access via the relevant ports: --- ## Navigation - Parent: [Acronis Backup Cloud](https://faq.servetheworld.net/myserve/en/acronis-backup-cloud.md) - Previous: [Restore server](https://faq.servetheworld.net/myserve/en/acronis-backup-cloud/acronis-gjenopprette-server.md)