Failed to disable echo wifi shield

Hi…

i cant connect my wifi shield [ cytron esp wifi shield - (esp-wroom02) ] to the network. i have try to reflash the shield but did not work too. how to solve this problem???

TX - D3
RX - D2

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/ _ )/ /_ _____ / /__
/ _ / / // / _ / '/
/
//_, /////_
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__/ v0.4.3 on Arduino Uno

[603] Connecting to alexanderisz
[1613] Failed to disable Echo


AT

OK
AT+GMR

AT version:0.52.0.0(Jan 7 2016 18:44:24)
SDK version:1.5.1(e67da894)
compile time:Jan 7 2016 19:03:11
OK