Hello all - I'm hoping you can help with a weird issue I'm having. For as long as I have had this device (3 months), I have noticed recurring latency spikes that happen every 6-10 minutes, last for about 10 seconds, and then cease. Today I spent time troubleshooting the issue and captured some data that I'm hoping can help lead to a resolution.

A steady ping to google from any of my systems is in the 12-20ms range, except during these spikes, where it jumps between 100ms and 3000ms.

64 bytes from 216.58.194.206: icmp_seq=332 ttl=53 time=14.440 ms
64 bytes from 216.58.194.206: icmp_seq=333 ttl=53 time=16.268 ms
64 bytes from 216.58.194.206: icmp_seq=334 ttl=53 time=15.066 ms
64 bytes from 216.58.194.206: icmp_seq=335 ttl=53 time=15.279 ms
Request timeout for icmp_seq 336
64 bytes from 216.58.194.206: icmp_seq=337 ttl=53 time=18.335 ms
Request timeout for icmp_seq 338
64 bytes from 216.58.194.206: icmp_seq=339 ttl=53 time=158.643 ms
64 bytes from 216.58.194.206: icmp_seq=340 ttl=53 time=16.075 ms
64 bytes from 216.58.194.206: icmp_seq=341 ttl=53 time=15.161 ms
Request timeout for icmp_seq 342
64 bytes from 216.58.194.206: icmp_seq=343 ttl=53 time=53.442 ms
64 bytes from 216.58.194.206: icmp_seq=344 ttl=53 time=132.720 ms
64 bytes from 216.58.194.206: icmp_seq=345 ttl=53 time=83.040 ms
Request timeout for icmp_seq 346
Request timeout for icmp_seq 347
64 bytes from 216.58.194.206: icmp_seq=348 ttl=53 time=124.046 ms
64 bytes from 216.58.194.206: icmp_seq=349 ttl=53 time=66.303 ms
Request timeout for icmp_seq 350
64 bytes from 216.58.194.206: icmp_seq=351 ttl=53 time=58.469 ms
64 bytes from 216.58.194.206: icmp_seq=352 ttl=53 time=13.485 ms
64 bytes from 216.58.194.206: icmp_seq=353 ttl=53 time=322.673 ms
Request timeout for icmp_seq 354
64 bytes from 216.58.194.206: icmp_seq=355 ttl=53 time=16.042 ms
64 bytes from 216.58.194.206: icmp_seq=356 ttl=53 time=15.685 ms
64 bytes from 216.58.194.206: icmp_seq=357 ttl=53 time=14.156 ms

[continue steady 12-20ms]

The issue happens pretty steadily between 6 and 10 minutes. I created a script to document the timing (https://pastebin.com/Pxpc9r6T These are the last few timestamps I captured:

2018-09-26 18:27:19.637533
2018-09-26 18:36:16.697770
2018-09-26 18:45:14.287228
2018-09-26 18:54:15.257357
2018-09-26 19:00:13.673477
2018-09-26 19:09:14.040469
2018-09-26 19:18:15.185356
2018-09-26 19:27:14.133531
2018-09-26 19:34:30.887776
2018-09-26 19:45:22.860609

This affects all of the wireless devices on both 2.4 and 5ghz, but does not affect any of the hardwired devices at all.

I disabled the 2.4 and the 5ghz radios indepedently, and the remaining devices still had the same issue.

I removed all wireless devices from my network except for my laptop and still observed the same problem. I removed my laptop and tested with a PC, which also showed the same problem on the same interval.

Enabling/Disabling Enable 20/40 MHz Coexistence had no effect. Changing to AES+TKIP also had no effect.

I am currently on firmware V1.0.2.58, but planning to downgrade to V1.0.2.52 tonight to see if there is any effect. The regularity with which it happens makes me think it's an issue with some internal timer. Most often, the time I capture is 9 minutes and 1 second between intervals.

Any suggestions are appreciated. Thanks

Forum Discussion

Weird recurring Wireless Latency on 6-9 minute intervals