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Forum Discussion
Destructormode
Feb 13, 2019Aspirant
Having large lag spikes on WiFi every 10-15 seconds
Good day forums, I finally made the jump to a mesh network last month with the RBK50, one additional satellite, and one plug in satellite. So far it has been great- I have a large old home with thi...
Destructormode
Feb 22, 2019Aspirant
I refreshed the debug screen a number of times in a row, and here are my values:
17
25
17
14
43
12
48
19
47
14
14
43
28
19
37
15
This was done after I confirmed the spikes were actively happeneing.
CrimpOn
Feb 22, 2019Guru - Experienced User
Destructormode wrote:
I refreshed the debug screen a number of times in a row, and here are my values:
17
25
17
14
43
12
48
19
47
14
14
43
28
19
37
15
This was done after I confirmed the spikes were actively happeneing.
These results seem to confirm that your Orbi is not significantly different than mine as far as CPU load is concerned.
I read through this topic again and cannot find how you are measuring the lag that is usually 22ms but jumps to 2500ms every 15 seconds and is only present when the PC is connected using WiFi (and not when using Ethernet cable).
I am not aware of a (consumer, free) tool that can be used to measure WiFi radio congestion. It almost sounds like there is some appliance that is wiping out WiFi every 15 seconds. I also did not see a response to the question: "Is your PC connected at 2.4G or 5G?" (Sorry if I missed it.)
- Chuck_MFeb 22, 2019Mentor
After many random samples taken under normal network conditions:
My RBR50 CPU load varies from 6-60%. Average was about 21
My RBS50 #1 ethernet backhaul CPU load varies from 8-49% Average was about 23
My RBS50 #2 ethernet backhaul CPU load varies from 10-45% Average was about 22
My RBS50 #3 wireless backhaul CPU load varies from 14-62% Average was about 33
Destructormode CrimpOn both have normal loads compared to mine. Note the wireless backhaul always seemed higher -- even with about the same number of devices.
- CrimpOnFeb 23, 2019Guru - Experienced User
I am puzzled by two aspects of this problem:
- The things that are affected include video streaming, web browsing, and internet gaming. All things where a 2,500ms pause would be noticable. It is not a case of "dropped packets". i.e. Unlike a recent problem, this is not setting up two computers to send 1,000's of pings and counting how many disappear. (Unlike TCP, UDP (ping) does not guarantee delivery.) Most likely, because these are TCP activities, they simply wait for a response and then pick up again.
- Only WiFi connection is affected. When the PC is wired to the Orbi, it works fine. That rules out ISP problems, modem problems, and even many Orbi problems. It's also not likely to be a packet storm (as I earlier proposed), because it doesn't "leak over" into the LAN side.
What is it that can make WiFi connections pause for 2,500ms but not drop?
If this happens only on 2.4G connections, I would lean toward "something" causing massive interference every 15 seconds. There are SO many things that affect 2.4G (microwaves, cordless phones, etc. etc.) On the other hand, if it affects 5G, I am not aware of appliances that use the 5G bands. (Wouldn't it be a hoot if there is a rogue radar antenna on unauthorized frequency that sweeps around every 15 seconds?) I don't even see how nearby WiFi's on the same 5G could cause this.