10-10-2025, 04:05 PM
Yes, that’s actually a known quirk with some of the older Asustor models like the AS-204TE, especially when they wake from sleep. The network interface doesn’t always renegotiate back to 1GbE properly after power-saving states.
Here’s what you can try:
1. Disable network power saving – In ADM, go to Settings → Hardware → Energy Control and disable “Enable network power saving.”
2. Set a static link speed – Log in via SSH and use:
ethtool -s eth0 speed 1000 duplex full autoneg off
This forces 1GbE and prevents fallback to 100Mb.
3. Update firmware on both NAS units to the latest ADM version — older NIC drivers had this issue more frequently.
4. Avoid deep sleep (S3/S4) on the AS-204TE if possible — it’s better to leave it on idle or use scheduled power-off/power-on instead.
Unfortunately, that model’s Realtek NIC and early firmware design make this a recurring issue, so the permanent fix is to keep it awake during transfers or replace it with a newer NAS that maintains full 1GbE link negotiation consistently.
Here’s what you can try:
1. Disable network power saving – In ADM, go to Settings → Hardware → Energy Control and disable “Enable network power saving.”
2. Set a static link speed – Log in via SSH and use:
ethtool -s eth0 speed 1000 duplex full autoneg off
This forces 1GbE and prevents fallback to 100Mb.
3. Update firmware on both NAS units to the latest ADM version — older NIC drivers had this issue more frequently.
4. Avoid deep sleep (S3/S4) on the AS-204TE if possible — it’s better to leave it on idle or use scheduled power-off/power-on instead.
Unfortunately, that model’s Realtek NIC and early firmware design make this a recurring issue, so the permanent fix is to keep it awake during transfers or replace it with a newer NAS that maintains full 1GbE link negotiation consistently.