Heartbeat timeout with Arduino MKR 1010 WiFi

Hello there,

I recently bought an Arduino MKR 1010 WiFi board for my project. I am getting heartbeat timeout’s.
I have a local Blynk Server with the latest server version and use the latest Blynk library (0.6.1) for my sketch. So I simplified the code to get clear where things go wrong. But even with this simplified code it gives heartbeat timeout.
What am I doing wrong?

Here’s the code:


#define BLYNK_PRINT Serial // Defines the object that is used for printing
#define BLYNK_DEBUG        // Optional, this enables more detailed prints

#include <SPI.h>
#include <WiFiNINA.h>
#include <BlynkSimpleWiFiNINA.h>

char auth[] = "zzzzzzzzzzzzzzzzzzzzzzzzz";
char ssid[] = "yyyyyyyyyy";
char pass[] = "xxxxxxxxxxxxxx";

BlynkTimer timer;

void setup()
{
  // Debug console
  Serial.begin(9600);

  Blynk.begin(auth, ssid, pass, IPAddress(192,168,0,200), 8080);

  timer.setInterval(1000L, doit);
}

void loop()
{
  Blynk.run();
  timer.run();}

void doit(){
  Blynk.virtualWrite(V5, millis() / 1000);  
}

This is the debug output:


14:58:24.847 -> [5998] IP: 192.168.0.184
14:58:24.847 -> [5999] 
14:58:24.847 ->     ___  __          __
14:58:24.847 ->    / _ )/ /_ _____  / /__
14:58:24.847 ->   / _  / / // / _ \/  '_/
14:58:24.847 ->  /____/_/\_, /_//_/_/\_\
14:58:24.847 ->         /___/ v0.6.1 on MKR WiFi 1010
14:58:24.847 -> 
14:58:24.847 -> [6000] Connecting to 192.168.0.200
14:58:24.847 -> [6012] <[1D|00|01|00] xxxxxxxxxxxxxxxxxxxxxxxxxxx
14:58:24.880 -> [6032] >[00|00|01|00|C8]
14:58:24.880 -> [6032] Ready (ping: 18ms).
14:58:24.880 -> [6032] Free RAM: 25967
14:58:24.947 -> [6100] <[11|00|02|00][ver[00]0.6.1[00]h-beat[00]10[00]buff-in[00]1024[00]dev[00]MKR WiFi 1010[00]con[00]WiFiNINA[00]build[00]Aug  1 2019 14:58:14[00]
14:58:25.312 -> [6454] >[00|00|02|00|C8]
14:58:25.942 -> [7107] <[14|00|03|00|06]vw[00]5[00]7
14:58:26.937 -> [8108] <[14|00|04|00|06]vw[00]5[00]8
14:58:27.966 -> [9108] <[14|00|05|00|06]vw[00]5[00]9
14:58:28.961 -> [10107] <[14|00|06|00|07]vw[00]5[00]10
14:58:29.956 -> [11108] <[14|00|07|00|07]vw[00]5[00]11
14:58:30.951 -> [12107] <[14|00|08|00|07]vw[00]5[00]12
14:58:31.947 -> [13107] <[14|00|09|00|07]vw[00]5[00]13
14:58:32.942 -> [14108] <[14|00|0A|00|07]vw[00]5[00]14
14:58:33.937 -> [15107] <[14|00|0B|00|07]vw[00]5[00]15
14:58:34.965 -> [16108] <[14|00|0C|00|07]vw[00]5[00]16
14:58:35.297 -> [16456] <[06|00|0D|00|00]
14:58:35.297 -> [16464] >[00|00|0D|00|C8]
14:58:35.961 -> [17108] <[14|00|0E|00|07]vw[00]5[00]17
14:58:36.956 -> [18108] <[14|00|0F|00|07]vw[00]5[00]18
14:58:37.951 -> [19107] <[14|00|10|00|07]vw[00]5[00]19
14:58:38.946 -> [20107] <[14|00|11|00|07]vw[00]5[00]20
14:58:39.941 -> [21107] <[14|00|12|00|07]vw[00]5[00]21
14:58:40.936 -> [22107] <[14|00|13|00|07]vw[00]5[00]22
14:58:41.931 -> [23108] <[14|00|14|00|07]vw[00]5[00]23
14:58:42.960 -> [24108] <[14|00|15|00|07]vw[00]5[00]24
14:58:43.954 -> [25108] <[14|00|16|00|07]vw[00]5[00]25
14:58:44.950 -> [26108] <[14|00|17|00|07]vw[00]5[00]26
14:58:45.314 -> [26467] <[06|00|18|00|00]
14:58:45.314 -> [26476] >[00|00|18|00|C8]
14:58:45.944 -> [27108] <[14|00|19|00|07]vw[00]5[00]27
14:58:46.940 -> [28108] <[14|00|1A|00|07]vw[00]5[00]28
14:58:47.935 -> [29107] <[14|00|1B|00|07]vw[00]5[00]29
14:58:48.931 -> [30108] <[14|00|1C|00|07]vw[00]5[00]30
14:58:49.960 -> [31108] <[14|00|1D|00|07]vw[00]5[00]31
14:58:50.955 -> [32107] <[14|00|1E|00|07]vw[00]5[00]32
14:58:51.952 -> [33108] <[14|00|1F|00|07]vw[00]5[00]33
14:58:52.947 -> [34107] <[14|00] [00|07]vw[00]5[00]34
14:58:53.943 -> [35107] <[14|00]![00|07]vw[00]5[00]35
14:58:54.938 -> [36108] <[14|00]"[00|07]vw[00]5[00]36
14:58:55.304 -> [36479] <[06|00]#[00|00]
14:58:55.336 -> [36487] >[00|00]#[00|C8]
14:58:55.934 -> [37107] <[14|00]$[00|07]vw[00]5[00]37
14:58:56.930 -> [38108] <[14|00]%[00|07]vw[00]5[00]38
14:58:57.925 -> [39108] <[14|00]&[00|07]vw[00]5[00]39
14:58:58.954 -> [40107] <[14|00]'[00|07]vw[00]5[00]40
14:58:59.950 -> [41108] <[14|00]([00|07]vw[00]5[00]41
14:59:00.945 -> [42107] <[14|00])[00|07]vw[00]5[00]42
14:59:01.941 -> [43107] <[14|00]*[00|07]vw[00]5[00]43
14:59:02.936 -> [44107] <[14|00]+[00|07]vw[00]5[00]44
14:59:03.932 -> [45107] <[14|00],[00|07]vw[00]5[00]45
14:59:04.927 -> [46108] <[14|00]-[00|07]vw[00]5[00]46
14:59:05.325 -> [46490] <[06|00].[00|00]
14:59:05.922 -> [47108] <[14|00]/[00|07]vw[00]5[00]47
14:59:06.951 -> [48108] <[14|00]0[00|07]vw[00]5[00]48
14:59:07.947 -> [49108] <[14|00]1[00|07]vw[00]5[00]49
14:59:08.312 -> [49492] <[06|00]2[00|00]
14:59:08.943 -> [50108] <[14|00]3[00|07]vw[00]5[00]50
14:59:09.938 -> [51108] <[14|00]4[00|07]vw[00]5[00]51
14:59:10.934 -> [52107] <[14|00]5[00|07]vw[00]5[00]52
14:59:11.332 -> [52493] <[06|00]6[00|00]
14:59:11.929 -> [53107] <[14|00]7[00|07]vw[00]5[00]53
14:59:12.925 -> [54108] <[14|00]8[00|07]vw[00]5[00]54
14:59:13.920 -> [55108] <[14|00]9[00|07]vw[00]5[00]55
14:59:14.318 -> [55489] Heartbeat timeout: 55489, 36487, 52492
14:59:16.310 -> [57493] Connecting to 192.168.0.200
14:59:19.097 -> [60274] <[1D|00|01|00] 814ed9f68d504bdc871ad6f3d5979d8d
14:59:19.097 -> [60286] >[00|00|01|00|C8]
14:59:19.097 -> [60286] Ready (ping: 10ms).
14:59:19.097 -> [60287] Free RAM: 26007
14:59:19.164 -> [60353] <[11|00|02|00][ver[00]0.6.1[00]h-beat[00]10[00]buff-in[00]1024[00]dev[00]MKR WiFi 1010[00]con[00]WiFiNINA[00]build[00]Aug  1 2019 14:58:14[00]
14:59:19.463 -> [60648] >[00|00|02|00|C8]
14:59:19.927 -> [61107] <[14|00|03|00|07]vw[00]5[00]61
14:59:20.923 -> [62108] <[14|00|04|00|07]vw[00]5[00]62
14:59:21.918 -> [63107] <[14|00|05|00|07]vw[00]5[00]63
14:59:22.946 -> [64107] <[14|00|06|00|07]vw[00]5[00]64
14:59:23.942 -> [65108] <[14|00|07|00|07]vw[00]5[00]65
14:59:24.937 -> [66108] <[14|00|08|00|07]vw[00]5[00]66
14:59:25.933 -> [67108] <[14|00|09|00|07]vw[00]5[00]67
14:59:26.928 -> [68107] <[14|00|0A|00|07]vw[00]5[00]68
14:59:27.924 -> [69107] <[14|00|0B|00|07]vw[00]5[00]69
14:59:28.919 -> [70108] <[14|00|0C|00|07]vw[00]5[00]70
14:59:29.483 -> [70650] <[06|00|0D|00|00]
14:59:29.483 -> [70659] >[00|00|0D|00|C8]
14:59:29.915 -> [71108] <[14|00|0E|00|07]vw[00]5[00]71
14:59:30.943 -> [72107] <[14|00|0F|00|07]vw[00]5[00]72
14:59:31.936 -> [73108] <[14|00|10|00|07]vw[00]5[00]73