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I've given you the Early Access firmware to try, access via the mobile app as that should allow you without a disconnect then upgrade and see if it works. If it doesn't then I think it'll be the power supply or where it's plugged into, do you have it connected to a power extender or direct to an outlet? If an extender please try direct to an outlet. Otherwise do you have another power adapter you could try with?

Added https://forum.netduma.com/forum/144-netduma-r2-early-access/

Hi @Netduma Fraser, Could I please get Early Access to DumaOS 4 for my Netduma R2 as well? I would really appreciate it, as I'm hoping the update might help resolve the issue I'm currently experiencing with my router. Thank you very much in advance!

Hello Netduma Support Team, I am reporting a reproducible stability issue with my Netduma R2. Accessing the DumaOS web interface appears to trigger a network subsystem failure or partial router restart. 1. Issue Summary The router operates normally during regular internet browsing. Local connectivity and continuous ICMP ping responses remain stable as long as I do not access the DumaOS web interface. However, opening the DumaOS dashboard consistently causes temporary connectivity loss on both Ethernet and Wi-Fi. The issue persists after a factory reset and also occurs when the router is completely disconnected from its upstream WAN connection. 2. Steps to Reproduce Connect a Windows PC directly to a LAN port on the Netduma R2. Disconnect the R2 WAN cable to isolate the router from the upstream network. Confirm that the PC receives an address in the 192.168.77.0/24 subnet. Start a continuous ping using ping -t 192.168.77.1. Verify that ICMP responses remain stable. Open http://192.168.77.1 in a browser. The browser redirects to http://192.168.77.1/desktop/index.html?cache=0. 3. Actual Behavior DumaOS displays a red loading screen but never successfully loads the dashboard. The local network connection becomes unstable immediately after accessing the interface. On Ethernet, Windows intermittently reports that the network cable is disconnected. ICMP requests fail, sometimes returning Windows transmission errors. Over Wi-Fi, the router's SSID temporarily disappears. Connectivity generally returns after approximately 5–10 seconds. The behavior is reproducible using different browsers. Normal connectivity remains stable when the DumaOS interface is not accessed. 4. Troubleshooting Completed Factory reset performed: No improvement Tested Microsoft Edge and another browser: Same issue Tested Ethernet and Wi-Fi: Both affected Tested without WAN connected: Issue persists Verified local DHCP functionality: Working Verified continuous ICMP connectivity without accessing DumaOS: Stable Verified the router can provide normal internet connectivity: Working The original upstream configuration was: ISP router → OPNsense firewall → Netduma R2 WAN → Client devices However, the failure was reproduced with the Netduma R2 isolated from OPNsense, suggesting that the upstream firewall is not responsible. 5. Firmware and Power Information Device: Netduma R2 Installed firmware version: Unknown, as the dashboard is inaccessible Firmware downloaded: DumaOS-R2-3.3.280.sig Firmware installation: Not attempted Power adapter currently in use: 12 V DC, 3.2 A Original power adapter: Unavailable 6. Technical Assessment The issue appears to be triggered by initializing the DumaOS web interface rather than by normal network traffic. Potential causes could include a firmware or web-service crash, network subsystem restart, hardware instability, or a power-related issue. I cannot confirm the root cause without additional diagnostics. 7. Support Request Could your technical team please advise: Is this behavior associated with a known DumaOS R2 firmware defect? Is there an officially supported recovery or firmware reinstallation method that does not require access to the dashboard? Can the R2 provide diagnostic logs through a supported alternative interface? Could the symptoms indicate a power supply or hardware fault? If software recovery is not possible, what hardware diagnostic or repair options are available? I can provide screenshots showing the ICMP failures and additional test results if required. I would appreciate guidance on the safest recovery procedure for this specific router model. Thank you for your assistance.

Thanks for that, when it happens again can you get a screenshot of Settings > Troubleshooting > Advanced please where you see the CPU & Memory usage

We will update Ping Heatmap, there is nothing you need to do/can do to make them appear until we do that but it won't affect your ability to use the Geo-Filter. There is an icon on the map there so it is seeing the console/game properly, when you get into a game does the server appear? You may not be able to ping every server.

Added

Look at the mount and check whether it is male or female and then the mount on the antenna, if applicable then they would work

Can I get early access to for my netduma r2?

Thank you would this work on the R3?

Hi Fraser, the 5 GHz network was working while I was gaming overnight. I went to sleep, and when I woke up, it was no longer showing, so I don’t know exactly when it stopped working. Only two devices are showing as connected. No phones or TVs can connect to 5 GHz. Only the 2.4 GHz network is available. The only way to restore 5 GHz is to turn the router off and back on. I’m attaching the logs I saved after noticing the problem.R3_2026-11-08T18:50:00.948Z_logs.txt

Salut ! Tu peux utiliser n'importe quelle antenne adaptable au support derrière le routeur ! L'antenne n'est qu'une extension filaire (cuivre) pour optimiser/améliorer le signal de réception/envoi vers tes périphériques WLAN !

Would Amazon have a good substitute spare part? I have seen a few options

Hello , I am having trouble since updating to the most recent firmware for the R3 (v4.0.1510). No pings on the ping heatmap and list on the right shows -1000ms for all servers that pop up there. On the Geo-filter page it shows Xbox inactive and cycles between that and "Waiting for Host". The Xbox is downstairs with the game running so maybe that means its waiting for a game to start. My problem is I have no ping data and when I'm downstairs playing I use my DumaOS app on cell phone to monitor whats going on. I have no ping data on the phone app either and when I choose the Call of Duty Black Ops 7 as the game the round arrow symbol just spins and nothing happens. I do see one server (Des Moines), on the Geo-filter screenshot and the game is working but not sure what I'm connecting to. I've also seen the phone app say it may not be receiving data. I did follow the directions Fraser provided in this discussion to see if it would help: This part: Quit the application/game/client completely - including the game client from the System Tray - important! Remove device from the Geo-Filter If you're on PC then give it the PlayStation Device Type in the Device Manager Resync from the Geo-Filter Map menu Re-add the device to the Geo-Filter Set up the Geo-Filter how you like Wait 2 minutes Boot up application/game/client To force servers you need to do the following: It's essential the Geo-Filter is enabled before the game client (e.g. Steam etc) if on PC or platform (e.g. Xbox, PlayStation) or the game have been launched. If you change Geo-Filter settings when you're on the game then you will need to restart the game for those changes to take effect, otherwise it will use the previous Geo-Filter settings and appear not to be working. For settings ensure Ping Assist and Geo-Latency are disabled in the Geo-Filter menu that can be found by clicking ⋮ in the top right hand corner of the page and go to Settings. Strict Mode should also be enabled, it is enabled by default so if you haven't disabled it you can ignore it. If you have disabled it or want to check it can be found in the same Settings menu as above or in Settings > Troubleshooting > Advanced > Developer Options depending on your firmware version. Fast Search should also be disabled which it is by default so can be ignored if you haven't changed it, otherwise this can be found in the same place. Any help would be appreciated. Thanks in advance, goblin

The wire snapped. Would be nice for a replacement antenna which would fix my issue

Can you provide a screenshot of the Geo-Filter screen uncropped showing what you see when that happens please?

Double check it's actually broken first, it can appear to but can be snapped back in. If the cable in it is broken the WiFi can still work, it just may not be as strong/have as good range. You don't need a specific antenna from us, just one that will fit will work just fine. antennaepop.mp4

mine broke the first day i got it.. they are too far to replace it.. if u find a replacement one let me know i want to buy the parts for it.

You'll before bc geo was blocking other servers and you stick nearest. Now this not work anymore.

Hello support team my antenna wire nap off because I had to adjust the antenna. How am I able to replace my router? The wifi now doesn’t work at all material of the R3 seems be cheap

You're not going to get the closest server with the Geo-Filter off every time

Yea but now it's no difference with geo on / off

Okay if that's the lowest then that's the best you can get - when Ping Heatmap is updated you'll be able to see if there are any other servers which may have a better ping.

It has been suggested before and it would be a great feature, it's on the request list

Yes we're going to test the game and get it added - it'll almost certainly be using the exact same servers in the exact same locations as it usually does