Blynk won't connect to Wi-Fi

Issues and Errors
1

My blynk board wont connect to my Wi-Fi network suddenly even though it has before in the past. I am receiving exception 0.
The file text is the part of the serial monitor text when receiving this error upon plugging in my board. It spits out thousands of lines like this and the LED blinks red over and over, even though my code only tells it to once. I think it is looping through setup everytime the connection fails. I tried holding down button 0 to force a reset but had no success.
ì0—†þŠaƒ �òÿ[1355] Connecting to ATT960

Exception (0):
epc1=0x40203580 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000

ctx: cont
sp: 3ffefbf0 end: 3fff0110 offset: 01a0

stack>>>
3ffefd90: feefeffe feefeffe feefeffe feefeffe
3ffefda0: 3fffc200 40107238 00000020 40107254
3ffefdb0: feefeffe feefeffe 3fffc248 4000050c
3ffefdc0: 400043e6 00000030 00000016 ffffffff
3ffefdd0: 400044ab 3fffc718 3ffefec0 08000000
3ffefde0: 60000200 08000000 08000000 00000000
3ffefdf0: 0000ffff 00000000 ffffff00 003fe000
3ffefe00: 40233aa0 00000484 003fe000 00000030
3ffefe10: feefeffe feefeffe feefeffe feefeffe
3ffefe20: feefeffe feefeffe feefeffe feefeffe
3ffefe30: feefeffe feefeffe feefeffe feefeffe
3ffefe40: feefeffe feefeffe feefeffe feefeffe
3ffefe50: feefeffe feefeffe feefeffe feefeffe
3ffefe60: feefeffe feefeffe feefeffe feefeffe
3ffefe70: feefeffe feefeffe feefeffe feefeffe
3ffefe80: feefeffe feefeffe feefeffe feefeffe
3ffefe90: feefeffe feefeffe feefeffe feefeffe
3ffefea0: feefeffe feefeffe feefeffe feefeffe
3ffefeb0: feefeffe feefeffe feefeffe feefeffe
3ffefec0: 00000002 4000410f feefeffe 3fff0027
3ffefed0: 3fffc718 40004a3c 000003fe 40233aa0
3ffefee0: 3fffc718 40105e0e 000003fe 401076c0
3ffefef0: 40004b31 000003fe 40225f80 40225f69
3ffeff00: 3fff0d64 40226051 3fff08cc 000003ff
3ffeff10: 000003fd 3fff0027 3fff08cc 000003fd
3ffeff20: ffffff01 55aa55aa 0000000d 0000001c
3ffeff30: 0000001c 00000067 00000067 000003ff
3ffeff40: 40226440 3fff08cc 3fff08cc 00000001
3ffeff50: 00000001 3fff0047 40226579 3ffee8f0
3ffeff60: 3fff08cc 00000001 3fff0027 00000000
3ffeff70: 3fff098c 3fff0088 00000001 40226628
3ffeff80: 3fff0027 3fff08cc 00000000 00000004
3ffeff90: 3fff0047 3fff08cc 3fff08cc 00000000
3ffeffa0: 40226664 3ffe8368 3ffe8374 3ffef0e0
3ffeffb0: 40203b36 3ffe8374 3ffe8368 40203a76
3ffeffc0: 35535043 36383531 efeffe00 efeffefe
3ffeffd0: efeffefe efeffefe efeffefe efeffefe
3ffeffe0: 4e654b2a 6769682a 33352a68 efef0035
3ffefff0: efeffefe efeffefe 000018fe efeffe00
3fff0000: efeffefe 002580fe 00001c00 00000000
3fff0010: 00001800 1006d800 ff000040 fefff03f
3fff0020: ffffff00 41ffffff 36395454 feef0030
3fff0030: feefeffe feefeffe feefeffe feefeffe
3fff0040: feefeffe 33efeffe 34383531 36323731
3fff0050: feef0031 feefeffe feefeffe feefeffe
3fff0060: 00000018 feefeffe feefeffe 00002580
3fff0070: 0000001c 00000000 00000018 401006d8
3fff0080: 3fff00a0 00ff0090 00000004 40202561
3fff0090: 3ffeeecc 00000000 00000001 3fffdad0
3fff00a0: 4020388b 00000000 feefeffe 3ffef0e0
3fff00b0: 3fffdad0 3ffe8374 3ffeeecc 4020296c
3fff00c0: 3fffdad0 3ffef0e0 00000031 4020448e
3fff00d0: 3ffe8368 00000000 3ffeedf0 402029d0
3fff00e0: 3fffdad0 00000000 3ffeee04 40202c31
3fff00f0: feefeffe feefeffe 3ffef0d9 402048cc
3fff0100: feefeffe feefeffe 3ffef0f0 40100958
<<<stack<<<

2

That’s amazing!

Mine started doing that last night after I tried to reprogramming it but I thought it was because the esp8266 was damaged badly!

I can send it a program, but it seems dead…

3

At least I’m not alone, the more people who experience it the more likely we are to see a quick fix.:smile:

4

My uploading of programs has been semi-successful. Before running Blynk.begin I blink the LED. At first I blinked it once white, and upon uploading it the LED blinked every time the connection failed (hence my conclusion the failure to connect causes setup() to be re-ran). However, upon changing the code to flash the LED red and uploading it the connection continued to fail, but the LED did blink the new color. I will work on doing some troubleshooting and tell you if I make any progress.

5

I’m also suggesting is that your esp8266 might be damaged too…

I had been troubleshooting my wiring, and blown a few fuses, and after that I experienced the same thing as you…

6

sorry mate, i just replaced my module and fired it up and all fine now… mine was a hardware issue…

good luck with yours :slight_smile:

7

I’m going to look for a solution because I got my board free in the Hackster.io contest and don’t want to spend any money on a contest I probably wont win. I would be surprised if it is a hardware issue because I never hooked anything up to the board.