| Description | Performance issues have been observed since the firewall software upgrade on August 11, 2025. Individual connections require too many resources, which disadvantages other users. These users experience higher latencies, which can lead to slow websites, file transfers, etc. As a first step, the software update suggested by the manufacturer was installed on September 16. This has not yet led to any actual improvement. Troubleshooting together with the manufacturer is ongoing. Update 19.01.2026: Since December 5, specific firewall rules have been installed to lower resource usage, which mitigated the problems mainly caused by SMB and Microsoft Update. The vendor has identified a cause, but no simpler solution exists than applying these manual rules. We are currently migrating to new firewalls from the same manufacturer, which will replace the firewalls currently in operation. We will continue to monitor the problem and work towards a comprehensive solution. |
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| Affected users | Users of Firewall Stufe 2 (Area D) und Extranet (Area B) |
| Exists since | 2025-08-11 20:00 |
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