I have a Xiaomi Mi WiFi Mini router with MT7612EN wifi chip. Ping from router to wifi devices is > 200ms . Even with 19v of openwrt.
Google suggests this is a thing with the mediatek wifi driver and that nothing really can be done. Is this true ?
Not a big deal for me. Just curious if MT7612EN is indeed the culprit.
This is with the same wireless chip, from laptop (Intel 8260AC) to wired client (router on 19.07 HEAD), no line of sight, wall between router and laptop:
$ ping -c 5 amalthea
PING amalthea (10.0.0.15) 56(84) bytes of data.
64 bytes from amalthea (10.0.0.15): icmp_seq=1 ttl=64 time=0.766 ms
64 bytes from amalthea (10.0.0.15): icmp_seq=2 ttl=64 time=0.794 ms
64 bytes from amalthea (10.0.0.15): icmp_seq=3 ttl=64 time=0.713 ms
64 bytes from amalthea (10.0.0.15): icmp_seq=4 ttl=64 time=0.737 ms
64 bytes from amalthea (10.0.0.15): icmp_seq=5 ttl=64 time=0.774 ms
--- amalthea ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4058ms
rtt min/avg/max/mdev = 0.713/0.756/0.794/0.028 ms
From 8260AC client to my smartphone (so wireless to wireless):
$ ping -c 5 xz1c
PING xz1c.lan (10.0.0.6) 56(84) bytes of data.
64 bytes from xz1c.lan (10.0.0.6): icmp_seq=1 ttl=64 time=51.6 ms
64 bytes from xz1c.lan (10.0.0.6): icmp_seq=2 ttl=64 time=4.22 ms
64 bytes from xz1c.lan (10.0.0.6): icmp_seq=3 ttl=64 time=2.05 ms
64 bytes from xz1c.lan (10.0.0.6): icmp_seq=4 ttl=64 time=3.16 ms
64 bytes from xz1c.lan (10.0.0.6): icmp_seq=5 ttl=64 time=3.22 ms
--- xz1c.lan ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4006ms
rtt min/avg/max/mdev = 2.053/12.841/51.556/19.369 ms
I'd say there's something else going on in your case.
Interesting.. My ping from wifi device to wired device average at 17ms .
Wired to wifi are higher. There is this weird gradually increasing Ping times..
ping 192.168.1.185 -t !8018
Pinging 192.168.1.185 with 32 bytes of data:
Reply from 192.168.1.185: bytes=32 time=127ms TTL=64
Reply from 192.168.1.185: bytes=32 time=32ms TTL=64
Reply from 192.168.1.185: bytes=32 time=52ms TTL=64
Reply from 192.168.1.185: bytes=32 time=68ms TTL=64
Reply from 192.168.1.185: bytes=32 time=85ms TTL=64
Reply from 192.168.1.185: bytes=32 time=103ms TTL=64
Reply from 192.168.1.185: bytes=32 time=117ms TTL=64
Reply from 192.168.1.185: bytes=32 time=30ms TTL=64
Reply from 192.168.1.185: bytes=32 time=45ms TTL=64
Reply from 192.168.1.185: bytes=32 time=61ms TTL=64
Reply from 192.168.1.185: bytes=32 time=74ms TTL=64
Reply from 192.168.1.185: bytes=32 time=91ms TTL=64
Reply from 192.168.1.185: bytes=32 time=107ms TTL=64
Ping statistics for 192.168.1.185:
Packets: Sent = 13, Received = 13, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 30ms, Maximum = 127ms, Average = 76ms