1	12:50:32.474	'88827179': ping failed
1	12:50:32.489	'88827179': datacenter connecting failed [6]
0	12:50:33.099	'88827179': login on MEXIntGroup-Real through DC BJ1 (ping: 188.66 ms)
0	12:50:34.599	'88827179': login datacenter on MEXIntGroup-Real through DC BJ1 (ping: 188.66 ms)
0	12:50:35.114	'88827179': previous successful authorization performed from 172.16.1.57
0	12:51:01.286	'88827179': auto connecting to a better access point DC SZ1 (ping is 189.32 ms)
0	12:51:01.911	'88827179': login on MEXIntGroup-Real through DC SZ1 (ping: 189.32 ms)
0	12:51:03.458	'88827179': login datacenter on MEXIntGroup-Real through DC SZ1 (ping: 189.32 ms)
0	12:51:03.958	'88827179': previous successful authorization performed from 192.168.2.223