ESP8266 blue led stays stays on I have found a similar qustion to mine but there was no good response.

I've connected my ESP8266 to Arduino UNO. 

Then I got some trouble with software serial communication with Arduino and decided to change baud-rate to 9600 (previously it was 115200).

I used AT+IPR=9600 command to change it.

After that blue led of esp stays on and not taking AT commands any more, but output some gibberish to serial monitor. 

Note: I connected the esp8266 through a voltage regulator and a power source and both gave the same problem. My firmware is supposed to be updated so I don't think that it is the issue. 

Could anyone please help me?
Did you change the firmware? I think Baud rate can be changed only if you flash it with newer version of the firmware.