scan all devices leads to Blank screen - MAC O.S

simonbaverstock · July 2020

hi
is there an issue with the scan all devices tab on fing desktop as all im getting today is a white screen with the fing logo in the corner?

Marc · July 2020

@simonbaverstock, not that I can see. I just tried it on my desktop. Latest macOS version (not beta) ...

Arie · July 2020

I've got the same issue
Latest MacOS (10.15.6)
Fing 2.0

Marc · July 2020

Thanks @Arie , @Robin , any ideas on how to troubleshoot this?

Arie · July 2020

Everything works fine till I've tried to update the name of one device then the desktop app crashed.
Since every time I'm clicking on 'See all devices" I'm getting blank screen.
I have tried to reinstall app without result.

Robin · July 2020

Thanks @Marc
Hi @Arie @simonbaverstock
Can you please delete the network detected by the Fing desktop from the fing web app or Fing mobile app and then run a new scan on Fing desktop and then check if the issue persists?

Arie · July 2020

deleted as suggested
then on the Desktop:

'see all devices' ---> Blank page
'see insights' show Statistics (see picture attached)
if you click on a brand you get the details, then on a specific device you get it then,
Back to home ---> Blank page
Click on 'Score' ---> Blank page

Image: https://us.v-cdn.net/6031733/uploads/editor/pk/5954svnqubkp.png

Arie · July 2020

Correction, after deleting all networks both on the web then on the mobile, I was able to scan again on Desktop.
Juste 'Score' bring me to a blank page
I've lost more of the personnalisation done on the devices before

Arie · July 2020

After disconnection from my Local network (Gigabit) and connecting to my network with my WiFi, the problem come back again...

Robin · July 2020

Thanks @Arie

To address the blank screen, Can you please follow these commands on the terminal and let me know of the result?

Command 1: /usr/bin/pgrep fingagent
Command 2: sudo lsof -nP -iTCP:48080 -sTCP:LISTEN

On running the 2nd command, it will ask for a password and you need to enter the login password of your MacBook

Arie · July 2020

Hi,
Command 1 = 954
Command 2 = COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
fingagent 954 root 19u IPv4 0x16801ea2cb467df7 0t0 TCP 127.0.0.1:48080 (LISTEN)

"See all devices ---> BLANK SCREEN

Robin · July 2020

Thanks @Arie

Can you please run this command and then reboot your device and then check if the issue persists?

Command: sudo kill -9 954

Arie · July 2020

No progress...same issues

Robin · July 2020

Arie said:

No progress...same issues

I have sent you a private message as I would require the log files from you to investigate this. Please reply to my message directly. Thanks

Arie · July 2020

I answered you
thanks

zra · July 2020

I have this issue too on Fing desktop 2.0 Mac

MacOS 10.14.6

It used to work fine, I'm not sure when it changed, but it just presents a blank unresponsive window. All I can do is close it, can't move or resize it. Bummer, because I really liked Fing now it's not nearly as useful.

Image: https://us.v-cdn.net/6031733/uploads/editor/x0/82bnr7dmr1rg.png

Robin · July 2020

Hi @zra
There is a new version Fing desktop 2.1.0. Can you please update to latest version and then check if the issue persists?

Arie · July 2020

Hi @Robin,
Both issues (Blank screen in Scan devices and Score) are solved with this new release.
Thanks

jpkeates · July 2020

@robin I have the same issue under 2.1.0.
The solution using terminal has just worked to get the app back.

zra · August 2020

Thanks @Robin, 2.1.0 has resolved the issue for me currently

RichardESwanson · January 29

I have also been getting a blank screen, when I reboot everything works again. I have a Dell desktop running the latest version of windows 10.

Image: https://us.v-cdn.net/6031733/uploads/editor/pl/l9ddbo4xv77t.bmp

Image: https://us.v-cdn.net/6031733/uploads/editor/le/9c9jw4rr23lp.bmp

After reboot everything is back. This has been happening in the last few months. Any ideas why this is happening? Not very handy having to reboot to see my network devices. It use to work just fine until I paid the extra money for more features. Kind of sorry that I did that.

Image: https://us.v-cdn.net/6031733/uploads/editor/tm/9t6dh302niep.bmp

Robin · February 2

Thanks for the screenshots @RichardESwanson
It seems like WinpCap and NpCap is creating issues. With the new version 2.4.1, we have replaced winPcap with NpCap. I would like you to follow these steps and the issue should be resolved.

-> Uninstall WinpCap using Revo(if possible)

-> Disable the Npcap driver service and then uninstalled the program. To disable NpCap:

- Run this command as an admin: sc.exe config npcap start= disabled
- Uninstall Npcap

-> Reboot your device to safe mode with networking

->Download and install new Fing desktop version and then open it.

-> Reboot to normal mode and then check if it works for you.

RichardESwanson · February 3

WinpCap is not loaded on my computer, NpCap is, but it is not running as a service.

Image: https://us.v-cdn.net/6031733/uploads/editor/op/usbb67kbvjgn.bmp

Image: https://us.v-cdn.net/6031733/uploads/editor/r0/akqqa0ch2x3v.bmp

I do have the option to uninstall "Npcap OEM". This was installed on 11/24/2020 and it is version 1.00.
Is this what you want me to do?

Robin · February 5

@RichardESwanson
Yes, please use Revo uninstaller or Iobit uninstaller to remove NpCap and then follow the steps as I mentioned. I will be looking forward to your reply.

RichardESwanson · February 7

I have looked at your suggestions and I am concerned about installing a non Microsoft program to uninstall "Npcap OEM" that was installed by, I am assuming, your Fing undated software on November 24, 2020. In searching for information about this I keep getting all kinds of ad's, etc. Seems to me that if Fing software installed it, it should be able to uninstall it and clean up the registry at the same time.
Anyway, what is plan B?

Robin · February 8

RichardESwanson said:

I have looked at your suggestions and I am concerned about installing a non Microsoft program to uninstall "Npcap OEM" that was installed by, I am assuming, your Fing undated software on November 24, 2020. In searching for information about this I keep getting all kinds of ad's, etc. Seems to me that if Fing software installed it, it should be able to uninstall it and clean up the registry at the same time.
Anyway, what is plan B?

The software I mentioned was to remove previous NpCap so we can re-install Fing desktop and update the NpCap as well. If you don't want to use any other software to uninstall NpCap then you can do it manually making sure it is uninstalled correctly. Then you can download a fresh copy of Fing desktop and install it and then check if it works fine. NOTE: please install Fing desktop under safe mode with networking so none of the antivirus/firewall blocks it.

RichardESwanson · February 8

Thanks for your advice, but Fing desktop has been working lately so I am not going to do anything. I am 75 years old and have been working with computers since the early 70's. I worked on mainframes for more that 30 years and been with PC's since they started making them. My last job was a network administrator for 12 years before I retired. One of the things that I learned when working on mainframes was "if it is not broken, then don't fix it" and what I always told my people when I was a network administrator was if you have problems, reboot, if it is still not working then call me. I am not sure why Fing desktop has been working for the last 2 weeks, but it has been and so is everything else. Time will tell, if I start having issues again I will follow your advice.
Richard

scan all devices leads to Blank screen - MAC O.S

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