Wireless drop outs lock outs. (currently on latest beta)

[Danmc17]

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

[Netduma Fraser]

What do you mean by a drop in performance and instability, how is this presenting exactly?

How long do the connection drops last/does it recover itself or do you need to reboot? 

Are ALL devices connected to the R3?

What are the speeds you pay for/receive? What are you getting normally through WiFi and what do you get when the issue happens?

Is it affecting ALL your devices connected to WiFi or specific ones?

You've mentioned only WiFi so presumably you don't have this issue over ethernet?

Have you given the R3 a static/reserved IP on the BT router?
 

Try these suggestions:

1. Use a WiFi analyzer to find the least congested channel and change to that
2. Experiment with the widths to see what gives better results
3. Ensure it's in an elevated position - not on a metal surface
4. Ensure there aren't any electrical / wireless devices e.g headphones etc within close proximity ~3 feet if possible
5. Set the antennae to this position _ | | _