Omada EAP-235 Stuck at 100 Mbps Instead of 1 Gbps

Omada EAP-235 Stuck at 100 Mbps Instead of 1 Gbps

Omada EAP-235 Stuck at 100 Mbps Instead of 1 Gbps
Omada EAP-235 Stuck at 100 Mbps Instead of 1 Gbps
Tuesday - last edited Wednesday
Model: EAP235-Wall  
Hardware Version: V20
Firmware Version: 3.2.3 Build 20240815 Rel. 33684

I’m experiencing an issue with my Omada setup at home, which consists of an Omada router(ER605 v2.0), switch(SG2210MP v4.20), four EAP access points(EAP235-Wall(EU) v1.0), and an Omada Controller installed on a local server.
 

Issue Description:

  • One of my EAPs is consistently connecting at 100 Mbps instead of 1 Gbps.
  • If I enable Auto negotiation, it either does not connect at all or connects at 100 Mbps.
  • When I try to force it to 1 Gbps, it doesn’t connect; but if I force it to 100 Mbps, it connects fine.
  •  

Troubleshooting Steps Taken So Far:

  1. Cable & Port Verification: I swapped the problematic EAP with another EAP, and the second one worked correctly at 1 Gbps in the same location. Therefore, cables and switch ports seem fine.
  2. EAP Reset: I performed a factory reset on the problematic EAP, which didn’t solve the issue.
  3. Complete Network Reset: I fully reset all devices (router, switch, EAPs) and reinstalled the Omada Controller before reconfiguring everything from scratch. The problem persisted.

 

Given these steps, I’m unsure whether the EAP is defective or if there is a specific configuration needed to resolve this 1 Gbps negotiation issue. Any guidance or suggestions you can provide would be greatly appreciated.

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#1
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1 Accepted Solution
Re:Omada EAP-235 Stuck at 100 Mbps Instead of 1 Gbps-Solution
Wednesday - last edited Wednesday

  @NazariiLutsyk 

 

Hi, You have already tried all the troubleshoot steps.

You may contact your retailer to check the warranty.

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Re:Omada EAP-235 Stuck at 100 Mbps Instead of 1 Gbps
Tuesday

Hi @NazariiLutsyk,

 

Any damage to the eight small wires inside the AP's RJ45 port?  1000 Base-T requires all eight wires to be connected end to end, 100 Base-T needs just four.  If any of the four extra wires used by 1000 Base-T do not make a good connection the device would work, but only at 100 Mbps.

 

Does the controller show the AP as an EAP235-Wall?  The EAP225-Wall looks identical, but has 10/100 ports.  Hopefully nobody swapped your 235 for a 225 to get a free upgrade.

 

I'm unaware of any software setting on the AP itself to degrade the speed.

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#2
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Re:Omada EAP-235 Stuck at 100 Mbps Instead of 1 Gbps-Solution
Wednesday - last edited Wednesday

  @NazariiLutsyk 

 

Hi, You have already tried all the troubleshoot steps.

You may contact your retailer to check the warranty.

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#3
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Re:Omada EAP-235 Stuck at 100 Mbps Instead of 1 Gbps
Wednesday

  @D-C I forgot to mention it earlier, but I disassembled the device to check the RJ45 port, and all the pins and wires look fine. It still appears as “EAP235-Wall.”
It was working without any issues, but after the power outage, it couldn’t reconnect properly.

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Re:Omada EAP-235 Stuck at 100 Mbps Instead of 1 Gbps
Thursday

  @NazariiLutsyk 

 

If this change occurred not a result of a physical relocation or installation, but instead occurred directly after or as a result of an electrical event like an outage (which often comes with a power surge when power is restored) then it's possible that a voltage or current spike was induced in that ethernet cable (does it run a long distance, outstide, adjacent to AC power wires, etc) which has compromised the input filter circuitry of the uplink port of the EAP235-Wall.  Alternatively, it may have caused a small arc which has damaged the mating contact of one of the 8 wires inside the RJ45 jack of the uplink port.

 

As above, at the end of the day, you are chasing a fault which is preventing one of the 8 wires from making good contact inside the AP...if it's not the connector, then it has to be the filter circuitry behind it (which includes miniature transformers do decouple the signal).

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