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Dc38

Max IP reservation on local DHCP?

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Hi all, 

When trying to set IP reserves on my LAN on an XR1000 running firmware 1.0.0.52_1.0.38, any device entry over #7 wipes and replaces the current #7. Is the reserved IP table limited to 7 entries?

Furthermore, I have 13 devices that connect intermittently when in use throughout the day, but they seem to be causing lagspikes in games for other devices that are currently connected, which is why I am trying to reserve IP's to avoid the random assignment per session per device. 

Would appreciate any assistance, especially with diagnosing the ping spikes that seem to happen when the other devices connect.

 

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The DHCP pool should be far bigger than this, around 100 IPs I believe. Are you reserving IPs within the DHCP range or outside of the range? I'd suggest reserving them from outside of the range.

With regards to the lag we should be able to resolve that through QoS, could you share your current QoS configuration? A screenshot will be fine.

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Hi Liam,

I'll give that a shot. As far as the QOS setup goes, the image of the settings has given me the most stable tests, but there are still substantial lag spikes in game when the devices connect.

Screenshot_20210720-225107_Chrome.jpg

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What speeds do you get from your ISP? Try going to the three-line menu in Congestion Control and click 'Set Bandwidth speeds'. Then have DumaOS auto-detect your speeds, this will make QoS much more effective.

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Screenshot_20210721-084344_Chrome.thumb.jpg.ea70eee4edb1537fc8a23a69f5360e64.jpgOn an average day it's 840/920 down and up, using the connection bench with congestion control with anything above 65% each gives me consistently high ping spikes, jitter, and bufferbloat averaging 40ms. The bench scores from these configs will usually be A+ A+ B.

Using the bench while congestion is set to 20% each results in the most stable benchmark for me; 10ms average with the outlier spike ranging from anywhere between 40ms to 100ms. These benches will result in A+ A+ A+.

Anything below 60% congestion sliders will result in A+ across the board, but the bufferbloat graph will have spikes that look like wifi pulses for idle, upload, and download. Also, the results above are with "shared excess bandwidth" all disabled, as the sharing seemed to consistently result in higher ping. 

Any idea what would cause the bufferbloat graph to pulse like that? 

The top image is sliders at 100%, B bufferbloat. The images below are, respectively: sliders at 65%, and sliders at 20%.

The bottom most image is 65% with shared excess enabled.

Screenshot_20210721-084453_Chrome.jpg

Screenshot_20210721-084748_Chrome.jpg

Screenshot_20210721-084418_Chrome.jpg

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Are there any devices connected upstream of the XR1000? If you've got anything connected to the ISP modem/router, traffic from these could cause spikes that DumaOS can't control but it can certainly monitor.

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Within the home, it's devices to XR1000, to bridge ONT, straight to the utility pole and beyond. As far as external ISP based devices, I do not know.

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On a side note, i limited the dhcp pool range between 1.2 and 1.25, and per recommendation assigned reserved IP's beyond that range. I was able to add one more ip reservation for a grand total of 8, but I'm still having issues where any entry past the latest will overwrite the immediate prior entry...

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OK thanks for letting us know. What are the devices you're reserving IPs for? Do you know if they use Private/Randomised MAC addresses?

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I have a couple tvs, which I have matched assigned IP's to the reservation list, and a few tablets/phones and thermostats. I'm not sure where to check for randomized MAC addresses.

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When you're making these changes are you always doing it through a mobile browser? If so the interface isn't optimized for that and so could be the issue, could you try doing it from a PC and see if it works better please?

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I have been making the changes on a PC, the mobile browser screenshots were just for the sake of convenience.

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Could you provide the step by step process you're using to add a new reservation please? 

I remember I specifically tested this on another XR router and you can have a lot more than you currently have

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I am going into the settings tab, then accessing LAN setup within the Setup sub menu. I am adding devices off of the "Add" submenu, then clicking apply. 

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5 hours ago, Dc38 said:

I am going into the settings tab, then accessing LAN setup within the Setup sub menu. I am adding devices off of the "Add" submenu, then clicking apply. 

In Device manager, do you have a lot of connected devices that aren't in use anymore? It may be worth clearing up offline devices by going to the three-line menu and hitting 'Remove offline devices' in case these still have stored network configs on the XR1000.

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Can you detail the specific devices you have connected? There might be one specifically causing a conflict - maybe one that isn't as mainstream as the rest

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