Experiencing very slow transfer speeds on your Asustor NAS, stuck at around 8Mbps, can be frustrating, especially when dealing with large files. This issue may arise due to several factors, including network settings, hardware limitations, or incorrect configurations.
Common Causes and Solutions
1. Network Connection Issues
Ensure your NAS and PC are connected to a Gigabit Ethernet network. Using a 100Mbps router or switch can limit transfer speeds to under 10Mbps.
Solution:
Upgrade to a Gigabit-capable router, switch, and cables (Cat 5e or higher).
2. Jumbo Frames Configuration
Incorrect Jumbo Frames settings can slow down your network speed.
Solution:
Disable Jumbo Frames or ensure all devices on the network use the same MTU size (usually 1500).
3. Disk Performance
If your NAS uses older or failing hard drives, transfer speeds may drop significantly.
Solution:
Check the health of your drives using Asustor’s Storage Manager. Replace any failing drives.
4. Firmware and Software
Outdated firmware or incompatible software can lead to performance issues.
Solution:
Update your NAS firmware and ensure your Asustor software is up-to-date.
5. Antivirus or Firewall
Overly aggressive antivirus or firewall settings can throttle data transfer.
Solution:
Temporarily disable antivirus/firewall software and test transfer speeds.
By following these steps, you can improve your Asustor NAS transfer speeds and achieve smoother file transfers. If the problem persists, contact Asustor support for further assistance.
