AX50 reverts LAN ports to 100mbps after periods of inactivity

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AX50 reverts LAN ports to 100mbps after periods of inactivity

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AX50 reverts LAN ports to 100mbps after periods of inactivity
AX50 reverts LAN ports to 100mbps after periods of inactivity
2023-06-19 19:38:52
Tags: #LAN
Model: Archer AX50  
Hardware Version: V1
Firmware Version: 1.0.11 Build 20210730 rel.54485

At seemingly random intervals, the LAN ports of my router switch to 100mbps and remain that way until I restart the device. Unplugging and re-plugging the cables does not help. After a restart, everything seems to work fine for a day or two. It's not due to resetting (auto reset is turned off). Three of the four ports have devices that are always on (Hue bridge, Android TV, AV receiver), one port connects to a dumb switch with various PCs.

 

It doesn't necessarily affect all ports at the same time, but has done sometimes. I can't tell if one port goes first, then others follow, or if it's truly random. It appears to be random based on my observations over the last few months.

 

The problem happens regardless of operation mode and regardless of WiFi being on or off. The unit does get very hot sometimes, but I haven't noticed a correlation between heat and getting stuck at 100mbps.

 

The problem only affects the four LAN ports and not the WAN (internet) port, which does always stay at 1gbps.

 

It's not the cables - all CAT6e and CAT7 - because the problem also occurs with CAT5e and CAT6. It's not the devices - they behave perfectly fine for weeks when using another router.

 

Once stuck in 100mbps mode, it does not revert back (I waited one full week before restarting).

 

I think it's a firmware bug where an auto-negotiation happens at some point and doesn't happen again.

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Re:AX50 reverts LAN ports to 100mbps after periods of inactivity
2023-06-20 09:48:13

  @JamesJJ 

 

Hello, thanks for posting on TP-Link Community.

Please try to download the latest firmware and update it to see if the problem still exists:

Firmware Download for Archer AX50

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer BE550 New Software Enhances System Stability and Optimizes MLO Network Stability. TL-WA3001 Supports EasyMesh, Speed Limit, Guest Network in AP Mode and/or Multi-SSID Mode. If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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Re:AX50 reverts LAN ports to 100mbps after periods of inactivity
2023-06-20 11:47:44

  @Sunshine I'll try. Strange that the router didn't find that there was a new update available... I downloaded it and manually updated. There is clearly a bug there, too!

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