Understanding Hetzner’s Mainboard Replacement Plan

Hetzner, one of the leading dedicated server providers, has announced a large-scale mainboard replacement for several server models (AX42, AX52, and AX102) due to a design flaw. This replacement process, begun in February 2025, will take up to a year and affect numerous dedicated servers across multiple data centers. Hetzner will notify affected customers two weeks before the replacement and expects each server downtime to last 30 to 40 minutes.

Impact on Microdevops Clients

As a company managing infrastructure for multiple clients relying on Hetzner’s dedicated servers, we understand that this hardware replacement may cause temporary disruptions. While Hetzner is handling the physical replacement, additional configuration adjustments are required to ensure minimal service interruption.

Necessary Fixes for Affected Servers

After a server’s mainboard replacement, DevOps engineers need to update network configurations, as network interfaces may change. Below is a general guide for fixing connectivity issues post-replacement for Debian-based systems:

1. Boot into Rescue System
2. Identify the new network interface name using predict-check
3. Mount the root partition: mount /dev/sdX /mnt
4. Edit the network configuration file: nano /mnt/etc/network/interfaces
5. Replace old interface names with the new ones
6. Save changes and reboot (Ctrl+X, Y, Enter, then reboot)

For detailed instructions on other operating systems, refer to Hetzner’s official documentation: Hetzner Server Adjustments.

Microdevops’ Commitment to Seamless Transitions

We are actively monitoring Hetzner’s updates and are prepared to handle these changes efficiently. Our team is well-versed in adjusting server configurations and mitigating downtime. If your server is affected, rest assured that we will apply necessary fixes with minimal disruption to your services.

If you have any concerns, reach out to us, and we will ensure a smooth transition for your infrastructure.