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5Ghz Wifi Problems - Drops


ejmereen
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Hello,

I've been having issues with the 5Ghz band on my R3. I was not able to track down the root cause but I think I have it figure out.

Problem:

When I initiate a large download, such as downloading Avowed from the Xbox app on Windows, the 5ghz band will drop internet and all devices on this band will lose connection. I do not have SmartBoost enabled at all, as I thought this was the cause but it didn't matter.

Mitigation:

I can switch to 2.4ghz band and it works with no issues. I will be unable to join the 5ghz band unless:

1.) I reboot the router. 

2.) Wait about 30 minutes until it allows me to connect.

3.) If I go into the Duma App of Duma OS dashboard and remove the offline device that is trying to connect, it will connect after I remove it.

Assumed Root Cause:

I'm not sure the root cause maybe it's the download spike a high internet usage but my XR500 has zero issues with this. When I check the logs I see this entry at the time it drops:

Tue Feb 18 09:22:01 2025 daemon.info hostapd: wl1: STA c2:67:fc:37:8b:7c IEEE 802.11: deauthenticated due to local deauth request

Then when I try to connect I see the logs show this error:

Tue Feb 18 09:22:36 2025 daemon.err odhcp6c[16328]: Failed to send SOLICIT message to ff02::1:2 (Cannot assign requested address)

 

Summary:

It appears that when using 5ghz wifi band and I initiate a large download that will invoke a high speed requirement, the router craps out, drop the 5ghz connections and won't let me rejoin it unless I do one of the three methods mentioned above. Also a sidenote, the 5ghz band has larger range than the 2.4ghz band which is weird.

 

I have attached the logs on the last event, and also enables remote login. Let me know how I can fix this. Thanks!

 

UPDATE: I set every device to a static IP and that seems to have fixed the issue for me. I have not had to reboot anything since I did that. I also changed the release timeout to 10000.

 

R3_2025-02-18T14_24_12.600Z_logs.txt

Edited by ejmereen
Add update.
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Hey Fraser!

Firmware:

I'm using firmware v4.0.540 which should be latest.

Congestion Control:

During router setup it found 885 down and 345 up as my speeds. Right now the settings are 100% on both download and upload and Congestion Control Mode is set to Auto (recommended).

 

Maybe it's because I have both set to 100%? What should I change them to?

Edit: Just to add, I was the only on on the network so it wasn't like I was fighting for bandwidth. The only traffic was my download I saw Xbox Download category shoot up to about 350-400 MBPS and then it stopped working.

Edit #2: I changed the congestion to 70% on both upload and download and kept it as Auto Mode. I just tried to download a game again on my PC, and the 5ghz crapped out again after a few minutes, I'm the only one on the network. What is weird is this only impacts 5ghz and not 2.4ghz I can switch to 2.4ghz and the internet works. When I am finally able to connect back to 5ghz I can only download at 45 MBPS but after a reboot goes back up to expected results. Maybe this is a hardware issue? Attached new logs.

 

R3_2025-02-18T15_52_28.506Z_logs.txt

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Set it to your actual paid for/expected speeds then try with CC at 70 but on Always. Try these suggestions also:

  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 _ | | _
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Just to confirm once the 5ghz goes down I cannot reconnect to it, if I attempt I get an error saying "Can't connect to this network" on Windows, on the logs I see: daemon.err odhcp6c[4074]: Failed to send SOLICIT message to ff02::1:2 (Cannot assign requested address)

So the router is unable to assign an address to any of my devices.

@Netduma Fraser Also I don't want to factory reset my device, if that is the next steps, I already done it about 3-4 times and didn't fix the problem. It takes me about an hour to name each device and setup internet rules each time since there is no export/import way to save these settings. My XR500 never had these kinds of problems. I have remote access setup, can you get one of your developers to take a look at the problem? I can reproduce the problem on demand, I just need to download an Xbox game.

Edit: Width changes don't matter I don't think this is a bandwidth issue but more when traffic spikes a crashes that band. It's current sitting, elevated on a wooden shelf with nothing above or below it, no metal touching. No electrical wires outside the power cable and cat cable. I set the antenna at that shape, but didn't make a difference. To me this seems like an OS issue or perhaps a hardware issue where the 5ghz chip is wonky.

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The log entry relates to IPv6 but I can see you don't use IPv6 so that won't be the issue. IPv6 is also disabled by default now so we can ignore that. What would be a good idea though based on the logs is set a reserved IP for each device by going to Settings > DHCP > Add Rules > Select Device > Save and repeating for each device, at least for the ones on 5GHz.

No need to factory reset, the devs don't conduct every day tech support, if we're unable to get the issue resolved and it does appear to be a bug then they may connect to gather information. Have you adjusted the channels as well? I don't think it will be a hardware issue, otherwise it just wouldn't work at all

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I've been a victim of this problem as well. For the past few weeks (since upgrading to .540) it was fine, but earlier today, the issue returned, after a large download via Wifi. So I had to reboot the router twice. After first reboot the Wifi connection worked correctly for like 15 minutes then I noticed my devices started disconnecting again. After the 2nd reboot (via power button this time) so far so good, but I'm afraid the problem will return if I initiate another big download on Wifi.

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1 hour ago, Kris said:

I've been a victim of this problem as well. For the past few weeks (since upgrading to .540) it was fine, but earlier today, the issue returned, after a large download via Wifi. So I had to reboot the router twice. After first reboot the Wifi connection worked correctly for like 15 minutes then I noticed my devices started disconnecting again. After the 2nd reboot (via power button this time) so far so good, but I'm afraid the problem will return if I initiate another big download on Wifi.

If it happens again please grab the logs prior to rebooting

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I also am experiencing this issue. When I try to initiate a download on my PS5 it works for a couple minutes and then all devices get disconnected from the 5GHz connection. If I forget the network on the disconnected device and try to reconnect I just get errors saying the password is incorrect (the pw is not incorrect).

As mentioned in the original post, rebooting the router seems to allow devices to connect again. The second part of the problem is once the devices reconnect the speed is very slow. After doing a factory reset, I get 400-600 mbps over the 5GHz connection. Once it crashes and I do a reboot, I only get 40-90 mbps on the 5GHz (I am skeptical it is actually even40-90mbps as a basic webpage takes 30s or more to load). 

I tried assigning devices IPs and setting the DHCP release to 10000, I also tried adjusting widths. None of these fixed the issue. The router is also positioned as you recommended above.

Firmware version: v4.0.540

R3_2025-02-28T21_36_43.792Z_logs.txt R3_2025-02-28T20_55_14.612Z_logs.txt

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On 2/28/2025 at 9:54 PM, Peacez said:

I also am experiencing this issue. When I try to initiate a download on my PS5 it works for a couple minutes and then all devices get disconnected from the 5GHz connection. If I forget the network on the disconnected device and try to reconnect I just get errors saying the password is incorrect (the pw is not incorrect).

As mentioned in the original post, rebooting the router seems to allow devices to connect again. The second part of the problem is once the devices reconnect the speed is very slow. After doing a factory reset, I get 400-600 mbps over the 5GHz connection. Once it crashes and I do a reboot, I only get 40-90 mbps on the 5GHz (I am skeptical it is actually even40-90mbps as a basic webpage takes 30s or more to load). 

I tried assigning devices IPs and setting the DHCP release to 10000, I also tried adjusting widths. None of these fixed the issue. The router is also positioned as you recommended above.

Firmware version: v4.0.540

R3_2025-02-28T21_36_43.792Z_logs.txt 104.21 kB · 0 downloads R3_2025-02-28T20_55_14.612Z_logs.txt 101.48 kB · 0 downloads

What is the model of the modem/router the R3 is connected to and how have you set that to ensure all traffic flows to the R3? E.g R3 in its DMZ, modem/bridge mode

Are ALL devices connected to the R3?

What are the speeds you pay for/receive? 

Have you entered those speeds into the router?

How have you setup Congestion Control?

How have you setup SmartBOOST?

How is the PS5 connected, via ethernet or WiFi?

When you initiate the download is the CPU on the router maxed out the entire time/when the disconnect occurs?

Does the issue happen if you haven't downloaded on the PS5 that day for example?

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  • 2 weeks later...

On the latest firmware .540, also having similar issues. After the router is on for a couple days the 5Ghz signal will stop connecting and getting to some sort of loop unable to connect just trying to reconnect on my TV and phone but what's weird is the 2.4Ghz band will still work just fine same with LAN all no issues. I'll try to get some logs in the next time this happens. Definitely was not happening on the last firmware but overall the Wi-Fi since I've had this thing on all firmware has been relatively frustrating, inconsistent and unreliable with really bad range. 

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On 3/12/2025 at 1:42 AM, exodus1337 said:

On the latest firmware .540, also having similar issues. After the router is on for a couple days the 5Ghz signal will stop connecting and getting to some sort of loop unable to connect just trying to reconnect on my TV and phone but what's weird is the 2.4Ghz band will still work just fine same with LAN all no issues. I'll try to get some logs in the next time this happens. Definitely was not happening on the last firmware but overall the Wi-Fi since I've had this thing on all firmware has been relatively frustrating, inconsistent and unreliable with really bad range. 

Presumably a reboot will restore functionality until it happens a few days later? Does this also happen with the bands merged that everything then gets forced onto 2.4GHz? The logs would be great thanks. 

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Hi Fraser, just let you know. I am also experiencing the same issue with the latest .540. 

I did a downgrade to .290, no more logs, but I can share my settings.

  • 2.4GHz and 5GHz separated
  • All smart features disabled (congestion control, smart boost, etc.)
  • IPv6 disabled
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57 minutes ago, cedric108 said:

Hi Fraser, just let you know. I am also experiencing the same issue with the latest .540. 

I did a downgrade to .290, no more logs, but I can share my settings.

  • 2.4GHz and 5GHz separated
  • All smart features disabled (congestion control, smart boost, etc.)
  • IPv6 disabled

Have you had it occur since downgrading? Did you have it with merged bands on .540?

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14 hours ago, Netduma Fraser said:

Have you had it occur since downgrading? Did you have it with merged bands on .540?

I have separate bands (no merging of 2.4GHz and 5GHz) on all firmware versions, including .540 and .290.

I need more time to observe after downgrading, but .290 was the most stable version since launch of R3, zero issues until the latest update.

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1 hour ago, cedric108 said:

I have separate bands (no merging of 2.4GHz and 5GHz) on all firmware versions, including .540 and .290.

I need more time to observe after downgrading, but .290 was the most stable version since launch of R3, zero issues until the latest update.

Okay thanks, would appreciate if you could keep us posted with your stability

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  • 2 weeks later...
On 3/2/2025 at 11:47 AM, Netduma Fraser said:

What is the model of the modem/router the R3 is connected to and how have you set that to ensure all traffic flows to the R3? E.g R3 in its DMZ, modem/bridge mode

Are ALL devices connected to the R3?

What are the speeds you pay for/receive? 

Have you entered those speeds into the router?

How have you setup Congestion Control?

How have you setup SmartBOOST?

How is the PS5 connected, via ethernet or WiFi?

When you initiate the download is the CPU on the router maxed out the entire time/when the disconnect occurs?

Does the issue happen if you haven't downloaded on the PS5 that day for example?

Yes all devices start having issues.

I pay for 1G down and 60mbs up

Yes I entered the speeds into the router

I tried it with Congestion control and SmartBOOST both on an off

PS5 is connected to Wifi

I am not sure if the CPU was being maxed

Yes it happens after a few days or would happen within a few minutes if I started a large download over wifi.

 

I ended up reverting back to the prior firmware and now it hasn't had an issue since.

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7 hours ago, Peacez said:

Yes all devices start having issues.

I pay for 1G down and 60mbs up

Yes I entered the speeds into the router

I tried it with Congestion control and SmartBOOST both on an off

PS5 is connected to Wifi

I am not sure if the CPU was being maxed

Yes it happens after a few days or would happen within a few minutes if I started a large download over wifi.

 

I ended up reverting back to the prior firmware and now it hasn't had an issue since.

Congestion Control & SmartBOOST aren't really on/off features, how were they set exactly? If they weren't set to relieve the saturation of your connection then it's possible it could cause that

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