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So I won’t able to do testing until weekend as we all share the laptop. However I rebooted my R3 and run ping optimiser just to see what it said. I am keeping in mind that you said it could be abnormal. I’ll share results. Download ping seems good, upload though is interesting. I did 3 ping tests to see baseline and jitter.

Alright thanks I will buy one and test it out

Hi Netduma Team, I am writing to get some help with my Netduma R3. I am experiencing a total loss of network performance and complete connection drops. To be clear, these aren't brief latency or lag spikes; it is a total drop-off in performance and an outright lack of stable connectivity. This connection loss is happening globally across all SSIDs (both 2.4\text{ GHz} and 5\text{ GHz} bands are completely failing to maintain stable throughput or connections). My setup is connected via a BT FTTP ONT. Here is a summary of the thorough troubleshooting and optimizations I’ve already completed to try and isolate this: All SSIDs Affected: The performance and connection loss occurs on all configured SSIDs, even after splitting the 2.4\text{ GHz} and 5\text{ GHz} bands. Extender & IP Conflicts Addressed: I previously worked through potential DHCP and IP address conflicts specifically related to a wireless network extender and device MAC configurations to ensure they aren't causing routing loops. Double NAT / WAN: The R3 is in the DMZ of my primary BT router to completely bypass routing conflicts. DHCP Settings: I have optimized DHCP lease times, set up static IP reservations, and ensured clean IP distribution. Firmware & DNS: I have used custom DNS (NextDNS), managed bandwidth with Congestion Control, and previously experimented with rolling back the firmware. Despite all of these steps, the router's performance completely degrades to the point of being unusable. Looking at my logs, there are several repeating issues that seem to align with these severe connection drop-offs: Key Log Warnings: Massive Overwatch Loop Spam: Thousands of entries stating: user.warn overwatch: Asked to enable already-enabled Callback. It is completely flooding the log buffer. Severe Time-Sync Errors: Constant warnings from cli.lua stating: time went backwards! (e.g., ct 566ca1ce: time went backwards!). Failed IPv6 Messages: Even though I have disabled IPv6, the daemon odhcp6c is constantly trying and failing to send information requests (Failed to send INFORMATION REQUEST message to ff02::1:2). Fastpath Suspend Denied: Warnings such as user.warn overwatch: Illegal attempt to suspend fastpath denied show up repeatedly. Frequent SSID/Disassociation Events: Logs show rapid disassociations and associations, e.g., hostapd: wl0: STA ... IEEE 802.11: disassociated. I've added the log file. Could you please let me know if these time-sync/overwatch loop errors are driving the total wireless collapse, and how I can get this stable? R3_2026-07-16T11_46_04.437Z_logs.txt

Thanks.

Try these suggestions: Split the bands, give 2.4/5GHz different names and apply - so you can connect specifically to 5GHz if you haven't done that already Use a WiFi analyzer to find the least congested channel and change to that Experiment with the widths to see what gives better results Ensure it's in an elevated position - not on a metal surface Ensure there aren't any electrical / wireless devices e.g headphones etc within close proximity ~3 feet if possible Set the antennae to this position _ | | _ How have you set the TIM to ensure all traffic flows to the R3? E.g R3 in its DMZ, modem/bridge mode Are ALL devices connected to the R3?

Ping Assist should be disabled when trying to force servers. Is your radius excluding the Frankfurt server? That is the primary way to prevent yourself to servers you don't want

We haven't specifically tested the game or the console as far as I am aware so we can't say for certain whether it would work. In theory if it is P2P it should work just fine but they may not appear in the correct location on the map. Can't comment on the timeout question really as we've not tried it but if they have a ping limit then it may throw an error or just not allow you into any games there. Those features don't specifically help people get into high ping games without issues.

Do let us know how you get on!

I'll make a request to the team to see if they can add it

Hello i have router netduma r3 and the problem in Geo-Filter with Game battlefield 6 I have identified the required servers my ping in server with geo-filter Paris 87 - london 91 - spain 105 but frankfurt ping 115 He is connected to this server I want to block Frankfurt's server I don't want to be connected to him, ping in it is bad i try Ping Assist but The problem has not been solved Thanks for support

Thanks for the explanations. I can't connect to the 5 GHz and I don't know why. It happens just with netduma. I can connect my computer to every 5Ghz wifi.

Salut ! C’est un routeur de jeux ! 😉 En automatique, il prendra en compte le signal proposé avec la meilleure latence pour jouer ! Tu dois séparer les bandes et les régler manuellement si le but est d’obtenir les meilleurs débits !

Hello, I am planning to purchase the Netduma R3. I play games on a strictly wired Ethernet connection. My primary goal is to use the R3's Geo-Filter to force my Nintendo Switch to matchmake only with players in Japan for Splatoon 3. Because Splatoon 3 is a peer-to-peer (P2P) game with notoriously strict netcode, I wanted to ask a few questions before buying: P2P Handshake Filtering: Does DumaOS 4.0 correctly identify and filter the peer-to-peer matchmaking handshakes in Splatoon 3? Handling High-Ping Timeouts: If I live outside of Asia but force my Geo-Filter to Japan, will the game's internal matchmaking timeout or throw a "communication error" when the router blocks non-Japanese connections? Geo-Latency Feature: Does the Geo-Latency or Steady Ping feature in DumaOS 4.0 help prevent the Switch from throwing connection errors when filtering a high-ping P2P region? I appreciate any advice or insight from the team

I see. Maybe my test was glitching out I’ll try the ping. my line as previously mentioned is 900 down and 115 up. Duma OS router speed test sometimes will give me 888 or 907. Upload is 107-105. So I gone in and manually added 900 and 115 Hopefully this will help lock in results. I know 80 percent is a good value for download so I’ll do some more bb testing and focus on upload turning.

Report: 5GHz channel width limited to 20MHz with MediaTek MT7921 Wi-Fi 6 client — Netduma R3 Summary With a specific WiFi 6 client (MediaTek MT7921 chipset), the Netduma R3 never negotiates a channel width wider than 20MHz on 5GHz, regardless of the channel/bandwidth settings configured on the router. The same client, under identical signal quality, correctly negotiates full bandwidth (80MHz, 1201 Mbps link rate) with a different 5GHz access point in the same environment. Other client devices (e.g. a smartphone) reach normal speeds on the same Netduma R3, so this is not a general issue affecting all clients. Devices involved Router: Netduma R3, firmware v4.0.1147 (latest version available at time of testing) Affected client: HP Victus by HP Gaming Laptop 16-r0xxx, MediaTek MT7921 Wi-Fi 6 802.11ax PCIe Adapter Client driver: MediaTek Wireless LAN Driver v3.5.0.89 Rev.E (latest official HP release, freshly reinstalled during diagnosis) Key data point: direct comparison at matched signal quality Measured at the same time, same physical laptop position, via netsh wlan show interfaces: Network Channel Resulting bandwidth Signal RSSI Negotiated rate ISP router (TIM, different 5GHz AP) 64 80MHz 78% -62 dBm 1201 Mbps Netduma R3 36 20MHz 78% -63 dBm 286.8 Mbps Signal and RSSI are essentially identical between the two networks (1 dB difference, negligible). The rate negotiated with the Netduma R3 is still a quarter of what's achieved with the other router, consistent with a drop from 80MHz to 20MHz channel width (2 spatial streams, MCS11 in both cases — only the channel width differs). A second device (smartphone) connected to the same Netduma R3 on the same 5GHz band reaches real-world throughput up to ~600 Mbps, so the Netduma R3 is not globally stuck at 20MHz for all clients — only for this specific MediaTek MT7921 chipset. Measured impact on real throughput WiFi on Netduma R3: real throughput varying between ~130 and ~290 Mbps download depending on the test, with upload bufferbloat often elevated under load (300-450+ ms in several tests) Ethernet cable on the same Netduma R3: 688 Mbps download / 952 Mbps upload, bufferbloat +27ms download / +31ms upload (excellent) — confirming the bottleneck is specific to the WiFi radio, not the rest of the router/QoS engine Causes ruled out during diagnosis Before isolating the issue described above, the following causes were tested and systematically ruled out, both router-side and client-side: SmartBOOST: Gaming/Video & Streaming/VPN activity priorities lowered to minimum (1/1000) — no change in the declared bandwidth reservation or in real throughput 5GHz channel/bandwidth on the router: tested both on automatic and manually forced (channel 36, 80MHz) — no stable improvement Client protocol (802.11ax vs forced 802.11ac): forcing 802.11ac made the negotiated rate worse, not better Windows regional/regulatory domain: verified correct (Italy) WiFi adapter power saving: already set to "Maximum Performance" on AC power Bluetooth (antenna coexistence on the combo chip): fully disabled, no change Congestion from neighboring WiFi networks: zero third-party networks visible in the scan RSC (Receive Segment Coalescing): found globally disabled on Windows; re-enabling it made results noticeably worse Windows QoS policies (Get-NetQosPolicy) and Group Policy bandwidth reservation: no policy present Windows NetworkThrottlingIndex: modified/fully disabled, no effect Packet loss: 0% over 50 consecutive pings to the router, 1-4ms RTT — base connection stable CPU/driver load: no process or core saturated during speed tests Network driver: full clean reinstall (uninstall + latest official driver from support.hp.com) — no change Laptop BIOS reset to factory defaults: this did meaningfully improve the laptop's general WiFi performance (confirmed by the jump to 1201 Mbps with the other router), but did not resolve the specific limitation with the Netduma R3 Connection caching: Netduma R3 restart and "forget and reconnect" of the WiFi profile on Windows — no change in either case Request We would like to know whether this is a known interoperability issue between the Netduma R3's 5GHz radio and MediaTek MT7921 (WiFi 6) chipsets, and whether a firmware fix is planned. We're happy to provide further logs or repeat specific tests on request.

Is it possible to add Gundam Battle Operation 2 for PS4, PS5 and PC to the Ping Heatmap?

Sorry to hear that but at least you've got a working solution and you could take your anger out and make it look better!

I've given you Early Access so you can upgrade to that version to see if it helps: https://forum.netduma.com/topic/60946-new-r3-firmware-dumaos-401147/ If not please provide a log from the router when the issue next happens Great keep us posted!

I wouldn't have thought it would affect download as well so it may be more to do with how the test is performed. You could perform a big upload and do a ping test alongside and change the percentages to see if it is actually affecting it like the test says.

I've added you both to Early Access where you can see the massive change log for the firmware also: https://forum.netduma.com/topic/60946-new-r3-firmware-dumaos-401147/ It's primarily a bug fix/stability update so I think it's quite stable based on feedback so I'd suggest upgrading to it. I haven't seen that issue so it would be good if you could upgrade and then let us know if that continues.

It would be a necessary server, usually if you're in the EU you would see one in the EU although it can from time to time be located in the US. It's possible it's mislocated also, if you ping it you could tell.

it doesn't work for everyone, we are waiting for NTGR to provide a solution

Thank you for the access to the latest firmware. I will install it and make some tests. I didn't change anything regarding settings, until I started to play with the R3 versions. The ISP modem brand is a Skyworth GN543V. It looks like my ISP can't set that modem as bridge, so they offered me a DMZ so that's what I'm using. I will also be testing out the issue with others routers that I owned in the past, so I can have more options to determine better if it's an issue by my ISP or the R3 itself. Thank you guys

I am having a similar problem. My wife has been complaining to me for the past couple of weeks about the internet going out for a few seconds while she is working on her computer and zoom/teams calls dropping. I have tried restarting both the router and my modem with no success. I have not changed any settings or my set-up. Any ideas on a fix?Thank you

I’ve done that a few times as well. The U.k,Paris, South America ping was around 110. I don’t even add steady ping but I’ll try it