Hello Fraser / NetDuma Team,
I would like to report a possible R3 firmware/DumaOS issue. I have spent a long time testing different configurations, and I believe this may not be a normal setup problem.
Network setup:
Router: NetDuma R3
ISP: Zen Internet FTTP
Connection type: PPPoE
Speed: 900 Mbps download / 100 Mbps upload
Firmware: DumaOS 4.0.540
Main issue:
The Congestion Control function appears to have little or no effect.
I manually changed the percentages (10%, 20%, 50%, etc.), but the Bufferbloat results do not change. It feels like QoS is not actually applying the limits.
I have already tested:
IPv6 disabled
SmartBOOST ON and OFF
Speed Test Bypass ON and OFF
Congestion Control mode set to Always
Different Congestion Control percentages
Different Ethernet cables
R3 as main router
R3 as secondary router behind Zen router
The result is basically the same.
Another problem:
When running Ping Optimizer, sometimes the R3 loses Internet connection completely. After several reboots it recovers.
After recovery, the built-in R3 Speed Test sometimes becomes abnormal:
Normally around 900 Mbps download
After the issue sometimes only around 500 Mbps download
Strange behaviour:
Sometimes without changing any settings:
Bufferbloat suddenly becomes Grade A
Speed Test returns to normal
Everything works correctly
Then later, without any changes, the problem returns again.
Additional observation:
When R3 is used as a secondary router, the Speed Test ping was previously around 5–6 ms.
After the recent instability, the same setup now shows around 7–8 ms consistently.
I mainly use the R3 for competitive gaming (eFootball), so consistent latency and stable QoS performance are very important.
Could you please advise:
Is this a known PPPoE/QoS issue?
Could Congestion Control be failing internally?
Is there any Diagnostic Log I can provide?
Is there an Early Access/Beta firmware available that I could test?
I am happy to test firmware versions and provide feedback if it helps identify the issue.
Thank you very much.
