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    2. indrajaal
    As of September 2021, we have moved technical support to Robolink Help

    Welcome to the Robolink Community forum!

    You can post here to interact with others in the Robolink community. We're checking it weekly, and we'll respond to some messages. If you're looking for technical support, head over to Robolink Help.
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    indrajaal

    @indrajaal

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    Latest posts made by indrajaal

    • RE: Loading....

      @robolink_leila I finally got around to testing the new image, and it worked!

      I was also able to update to the latest firmware (v1.41 at the time of writing) via the WiFi!

      Thanks for all the help!

      posted in Zumi
      indrajaal
      indrajaal
    • RE: Loading....

      @robolink_leila connecting to the Hotspot on my iPhone 11 also did not work.

      posted in Zumi
      indrajaal
      indrajaal
    • RE: Loading....

      Thanks, @robolink_leila! I'll try connecting to my iPhone's hotspot today. Don't have any other n/w to try. And, I'll try the new image once available.

      Any idea why the Drive/Code modes are disabled in the dash? Is this expected?

      posted in Zumi
      indrajaal
      indrajaal
    • RE: Loading....

      @robolink_leila upon restarting Zumi, I'm able to bring up the dash. However, Wi-Fi still doesn't work. I ran the command, disconnected from Zumi, reconnected and tried connecting via the dash, but to no avail 😞

      pi@zumi8753:~ $ sudo sh /bin/rpi-wifi.sh; echo $?
      Starting Wifi AP and client...
      wpa_supplicant: /sbin/wpa_supplicant daemon failed to start
      run-parts: /etc/network/if-pre-up.d/wpasupplicant exited with return code 1
      ifup: failed to bring up wlan0
      net.ipv4.ip_forward = 1
      0
      

      0_1573094441572_zumi-select-network.png

      0_1573094452921_zumi-failed-wifi.png

      Driver/Code modes disabled?
      0_1573094477813_driver-mode-code-mode-disabled.png

      posted in Zumi
      indrajaal
      indrajaal
    • RE: Loading....

      Hey, @robolink_leila

      Any update on this issue?

      posted in Zumi
      indrajaal
      indrajaal
    • RE: Zumi dashboard will not find wifi

      @sbanas I'm following up on a similar issue in this thread: https://forum.robolink.com/topic/386/loading/23.

      May be of help.

      posted in Zumi
      indrajaal
      indrajaal
    • RE: Loading....

      @robolink_leila so, several interesting things to note:

      • The dashboard is somehow broken, but I am able to navigate to the notebooks, like http://zumidashboard.ai:5555/tree/Zumi_Content/Demo. It's just that navigating to zumidashboard.ai somehow doesn't work.
      • After starting an SSH session, I figured out the PID for the main Zumi process, and attached to it via strace as I wanted to see if I could see the messages it's writing to stdout. Interestingly, as soon as I attached to the process, the dashboard started working 🤔 ! So, I went thru the process of scanning the WiFi n/w, selecting my SSID, entering the password and hitting Connect. It still continues to fail to connect ☹ . This is the log for that entire process, not sure if it helps any:
      pi@zumi8753:~ $ sudo strace -ewrite -p 628
      strace: Process 628 attached
      write(1, "getting ssid list\n", 18)     = 18
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1626, si_uid=0, si_status=0, si_utime=2, si_stime=4} ---
      write(1, "getting ssid list\n", 18)     = 18
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1661, si_uid=0, si_status=0, si_utime=3, si_stime=3} ---
      write(1, "getting ssid list\n", 18)     = 18
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1696, si_uid=0, si_status=0, si_utime=2, si_stime=6} ---
      write(1, "getting ssid list\n", 18)     = 18
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1731, si_uid=0, si_status=0, si_utime=2, si_stime=3} ---
      write(1, "getting ssid list\n", 18)     = 18
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1766, si_uid=0, si_status=0, si_utime=5, si_stime=2} ---
      write(1, "getting ssid list\n", 18)     = 18
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1801, si_uid=0, si_status=0, si_utime=2, si_stime=2} ---
      write(1, "app.py : connecting wifi start\n", 31) = 31
      write(1, "Please select a WiFi network\n", 29) = 29
      write(1, "scripts.py : add_wifi start\n", 28) = 28
      write(1, "scripts.py : copying wpa_supplic"..., 41) = 41
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1836, si_uid=0, si_status=1, si_utime=0, si_stime=8} ---
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1837, si_uid=0, si_status=0, si_utime=4, si_stime=3} ---
      write(1, "scripts.py : copyed wpa_supplica"..., 40) = 40
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1852, si_uid=0, si_status=0, si_utime=15, si_stime=4} ---
      write(1, "None\n", 5)                   = 5
      write(15, "\nnetwork={\nssid=\"Please select a"..., 143) = 143
      write(1, "added wifi information to wpa_su"..., 41) = 41
      write(1, "force all rogue wpa_supplicant ."..., 35) = 35
      write(1, "kill all wpa_supplicant\n", 24) = 24
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1853, si_uid=0, si_status=0, si_utime=3, si_stime=5} ---
      write(1, "finish kill all wpa_supplicant\n", 31) = 31
      write(1, "spa_supplicant setup\n", 21)  = 21
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1861, si_uid=0, si_status=255, si_utime=3, si_stime=5} ---
      write(1, "wpa_supplicant finished\n", 24) = 24
      write(1, "dhclient start\n", 15)        = 15
      write(1, "dhclient end\n", 13)          = 13
      write(1, "getting an ip address\n", 22) = 22
      write(1, "scripts.py : add_wifi end\n", 26) = 26
      write(1, "personality start\n", 18)     = 18
      write(5, "\0!", 2)                      = 2
      write(5, "\0\0", 2)                     = 2
      write(5, "\0\177", 2)                   = 2
      write(5, "\0\"", 2)                     = 2
      write(5, "\0\0", 2)                     = 2
      write(5, "\0\7", 2)                     = 2
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
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      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\200\200\300@` ` ` ", 17) = 17
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      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\3\377P\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
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      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\17", 17) = 17
      write(5, "@<`\300\200\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0@\360\340\340\2\3\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\1\3\6\4\f\10\30\20\20\0200\0200", 17) = 17
      write(5, "@\20\20\30\30\10\f\4\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0 `  \0\200\200\0", 17) = 17
      write(5, "@\200\0\0\0\0\200\0\240\0\200\0\200\200\200\0\0", 17) = 17
      write(5, "@\0\0\200\200\200\0\200\0\0\0\0\0\200\340\200\0", 17) = 17
      write(5, "@\0\0\200\200\200\0\0\0\0\0\0\0\0\200\200\200", 17) = 17
      write(5, "@\0\0\0\0\0\200\200\200\0\0\0\200\0\200\200\0", 17) = 17
      write(5, "@\0\0\200\0\200\200\200\0\0\0\0\200\200\200\0\0", 17) = 17
      write(5, "@\0\0\0\200\200\200\0\0\0\200\340\200\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0+\24\0\t7\0\0", 17) = 17
      write(5, "@\1\6\370\10\6\1\0>\0?\1\0\0\0?\0", 17) = 17
      write(5, "@\6\231\240 \240\221\177\0\0\0\0\0\0?\0\0", 17) = 17
      write(5, "@\0161   \33\4\0\0\0\0\0161 \0 ", 17) = 17
      write(5, "@\21\0\0\0171   \33\4\0?\1\0\0\3", 17) = 17
      write(5, "@<\0?\1\0\0\0?\0\6\25$$$\25\2", 17) = 17
      write(5, "@\0\6\31   !\20\0\0?\0\0\0 \0", 17) = 17
      write(5, "@\0\0 \0\0\0 \0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(1, "personality done\n", 17)      = 17
      write(1, "app.py : connecting wifi end\n", 29) = 29
      write(1, "scripts.py : check_wifi start\n", 30) = 30
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1881, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
      write(1, "\n", 1)                       = 1
      write(1, "\n", 1)                       = 1
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1894, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1871, si_uid=0, si_status=0, si_utime=2, si_stime=4} ---
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1893, si_uid=0, si_status=0, si_utime=4, si_stime=3} ---
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1895, si_uid=0, si_status=6, si_utime=0, si_stime=1} ---
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1917, si_uid=0, si_status=6, si_utime=1, si_stime=1} ---
      write(1, "\n", 1)                       = 1
      write(1, "check internet script method fin"..., 36) = 36
      write(1, "['Failed to', 'connect.', ' Try "..., 41) = 41
      write(5, "\0!", 2)                      = 2
      write(5, "\0\0", 2)                     = 2
      write(5, "\0\177", 2)                   = 2
      write(5, "\0\"", 2)                     = 2
      write(5, "\0\0", 2)                     = 2
      write(5, "\0\7", 2)                     = 2
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
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      write(5, "@\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 17) = 17
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      write(5, "@\21?\0\0?\0\0\0?\0\0\0\16\25$$", 17) = 17
      write(5, "@$%\26\0\16\21   \21?\0\0\0\0\0", 17) = 17
      write(5, "@\0\0?\0\0\0\16\21    \21\16\0\0", 17) = 17
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      write(5, "@\0\200\0\0\210\0\0\0\200\0\200\200\200\200\0\0", 17) = 17
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      After this session, the dashboard stopped working again. Re-attaching didn't help.

      Is there, perhaps, a better way to capture the logs? Does this look like an RPi Zero WiFi issue again? Is there a way I could just run the commands Zumi is running directly from a terminal to see if it's able to connect to my WiFi?

      Another thing is that even though my router has both 2.4GHz and 5GHz n/ws, they have the same name. Could that be the problem? I tried temporarily renaming one of them to Network-2G. After that Network and Network-2G show up, but then other stuff on my n/w like my Chromecast etc stop working 😒.

      Anyway, I'll keep digging. I'm starting to look thru RPi Zero W forums as well for WiFi issues similar to mine.

      posted in Zumi
      indrajaal
      indrajaal
    • RE: Loading....

      Thanks, @robolink_leila!

      Is it possible to SSH into Zumi in this state (dashboard not working)?

      posted in Zumi
      indrajaal
      indrajaal
    • RE: Loading....

      @robolink_leila @robolink_wes any guidance, please, on how to proceed here?

      posted in Zumi
      indrajaal
      indrajaal
    • RE: Loading....

      @robolink_leila following up on my previous post, now, it seems the dashboard is bricked somehow.

      After I connect to Zumi and it starts to show the Go to zumidashboard.ai in your browser message, I can't load the dashboard anymore 😭.

      I tried doing a full DNS flush and reconnecting, but no dice.

      sudo killall -HUP mDNSResponder;sudo killall mDNSResponderHelper;sudo dscacheutil -flushcache
      

      0_1572623776878_Screen Shot 2019-11-01 at 8.51.48 AM.png

      Are there any application logs I can look at/post here? Not sure how the dash is implemented, but, maybe the server powering it has died and just needs to be restarted?

      posted in Zumi
      indrajaal
      indrajaal