mrmesho

Thank you all for the support. I just wanted to share what finally fixed the speed issue for me. I removed the cloned MAC address (I had previously entered the Huawei router’s MAC) and re‑entered the original Netduma R3 MAC address in WAN > Advanced. After a reboot, my speeds immediately returned to 350–400 Mbps. Everything is working perfectly now. Thanks again to everyone who helped!

Thank you for the follow-up. To answer your questions: · Where am I testing? I’m testing on my PC connected via Ethernet cable directly to the Netduma R3 (no Wi‑Fi for that test). I also tested on my phone connected to the R3’s 5GHz Wi‑Fi, and the speed is similarly low (around 130–176 Mbps). · Are all devices connected to the R3? Yes, all my devices (PC, phone, etc.) are connected to the Netduma R3. The Huawei 5G router is only used as the modem (with DMZ enabled to the R3). No devices are connected directly to the Huawei. What I’ve already tried: · IPv6 disabled on both LAN and WAN · UPnP disabled · SmartBOOST disabled · Congestion Control set to 100% with “Always On” · Speed Test Bypass enabled / disabled (no change) · Different Ethernet cables (CAT5e / CAT6) · Factory reset of the R3 Despite all this, speed through the R3 remains at 130–176 Mbps on both Ethernet and Wi‑Fi, while direct connection to the Huawei gives 350–450 Mbps. Is there anything else I should check? Could this be a configuration issue with the R3 itself? Thank you for your support!

Thank you for the suggestions. I have tried the following: · Enabled Speed Test Bypass in Ping Optimizer > Advanced. · Entered my expected speeds (450 Mbps download) in Settings > Speed Test > Advanced. However, I’m still seeing the same issue: · When my PC is connected directly to the Huawei 5G router, I get 350–450 Mbps. · When connected through the Netduma R3 (with DMZ setup and IPv6 disabled), I get only 130–176 Mbps. I am testing via Ethernet, not Wi-Fi. IPv6 is disabled on both LAN and WAN. UPnP is disabled. Congestion Control is set to 100% with “Always On,” and SmartBOOST is disabled. Speed Test Bypass didn’t change anything — the speed remains low through the R3. Could this be a hardware issue with the WAN port, or is there something else I should check? Thank you for your support.

Hello everyone, I need help with a strange speed issue on my Netduma R3. Setup: · ISP router: Huawei H155‑381 (5G) — connected via Ethernet cable · Netduma R3 in DMZ (R3’s WAN IP is in Huawei’s DMZ) · PC wired directly to R3 Symptoms: · When the PC is connected directly to the Huawei router (bypassing R3), I get 350–450 Mbps download. · When the PC is connected through the R3, I only get 130–176 Mbps download. · Ping is stable, Geo‑Filter works, but the download speed is capped. What I have already tried (following forum advice): · IPv6 disabled on both LAN and WAN of R3 · Congestion Control set to 70% / 70% and also tried 100% / 100% · Congestion Control Mode = Always On · Speedtest Bypass = OFF · Tried UPnP on / off (currently off) · Tried different Ethernet cables (CAT5e and CAT6) · Tested with SmartBOOST enabled / disabled · Confirmed that the WAN IP in Huawei’s DMZ is correct · Factory reset of R3 and reconfigured Nothing changed — the speed remains around 130–176 Mbps through R3. Note: I play Warzone competitively, so stable low latency is important. The speed cap itself does not affect gameplay, but I would like to understand why the router is limiting the throughput so much. Could this be a known bug, or am I missing a setting? Thank you for any suggestions.