CC3200 运行wlan station例程出现以下错误（超级终端打印），请帮看一下是什么原因呢

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CC3200 WLAN STATION Application
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Host Driver Version: 1.0.0.10
Build Version 2.2.0.1.31.1.2.0.2.1.0.3.23
Device is configured in default state
Device started as STATION
[WLAN EVENT] STA Connected to the AP: 360 ,BSSID: 0:36:76:31:5b:ef
[NETAPP EVENT] IP Acquired: IP=172.27.35.4 , Gateway=172.27.35.1
Connection established w/ AP and IP is aquired
Pinging...!
Error [-2000] at line [670] in function [CheckLanConnection]
Device couldn't ping the gateway