I connected Edison and PC to the same wireless router. But I got very long network delay and packet loss(about 13%) when ping from PC to Edison.
When ping from Edison to PC, it works well without pakcet loss. What's the possible reason for this issue?
output of 'wpa_cli statu':
root@edison:~# wpa_cli status
Selected interface 'wlan0'
Supplicant PAE state=AUTHENTICATED
EAP TLS cipher=AES256-SHA
EAP-PEAPv1 Phase2 method=MSCHAPV2
Here is the output:(edison ip is 10.174.85.46, and PC ip is 10.174.85.56)
PC -> edison
64 bytes from 10.174.85.46: icmp_req=411 ttl=64 time=91.2 ms
64 bytes from 10.174.85.46: icmp_req=412 ttl=64 time=8.67 ms
64 bytes from 10.174.85.46: icmp_req=413 ttl=64 time=68.0 ms
64 bytes from 10.174.85.46: icmp_req=414 ttl=64 time=117 ms
64 bytes from 10.174.85.46: icmp_req=415 ttl=64 time=54.0 ms
64 bytes from 10.174.85.46: icmp_req=416 ttl=64 time=90.7 ms
64 bytes from 10.174.85.46: icmp_req=417 ttl=64 time=29.7 ms
--- 10.174.85.46 ping statistics ---
417 packets transmitted, 357 received, 14% packet loss, time 417057ms
rtt min/avg/max/mdev = 3.534/72.067/293.075/39.265 ms
edison -> PC
64 bytes from 10.174.85.56: seq=412 ttl=128 time=24.924 ms
64 bytes from 10.174.85.56: seq=413 ttl=128 time=23.978 ms
64 bytes from 10.174.85.56: seq=414 ttl=128 time=23.282 ms
64 bytes from 10.174.85.56: seq=415 ttl=128 time=22.311 ms
64 bytes from 10.174.85.56: seq=416 ttl=128 time=21.854 ms
--- 10.174.85.56 ping statistics ---
417 packets transmitted, 416 packets received, 0% packet loss
round-trip min/avg/max = 3.646/23.182/286.286 ms
I have read another disscussion about 'edison wifi lateny' https://communities.intel.com/message/252491#252491
1) I have flashed the latest edison image (edison-image-ww36-14.zip), but the issuse remain.
2) I have tried both external power and USB to power Edison, but the issue remain.
Is this issue about power saving or something else? If so, how to turn off the power saving mode on Edison?
Any reply are welcomed. Thans very much.