ESP8266Serial.available() goes Zero

[Urvishic]

Dear Team,

ESP8266Serial.available() goes zero when I connect 230V AC supply with relay .
Please guide.

Urvish

[Urvishic]

Yep! In the troubleshooting :
I have found an interesting behavior of ESP:

when I am doing only with Wboard power (not 230V at Relay)
I am receving data patten Like:

AT+CIPSEND=206

POST /api/http HTTP/1.1
Host: 10.0.0.1
Conte]}
SEND OK

now when I am connecting 230V the patten gets distroted at first instant :
[System Ready, Vendor:www.ai-thi","action": Ýð
�!£yñ�HÜB�ÊTÀÃ6Ðr [System Ready, Vendor:www.ai-thi","action":" Ýð �!£yñ�HÜB�ÊTÀÃ6Ðr
[System Ready, Vendor:www.ai-thi","action":""

and when it gets reconnected with same set up 230V on
so in second instant means in reconnection the patten gets fine!

AT+CIPSEND=212

POST /api/http HTTP/1.1
Host: 10.0.0.1
Conte}}
SEND OK

Please guide on this ....