figures properties This web page is not available ERR_NAME_NOT_RESOLVED

I have Matlab installed on 3 machines, 2 Macs and a PC. On one Mac, when I try to open figures properties tab or axes properties, the box pops up but all it has in it is

This web page is not available

ERR_NAME_NOT_RESOLVED

I've tried to reinstall Matlab, and delete Chrome off my machine. Still no luck.

regards

Gethin

[Image Analyst]

Where or how are you trying to open the figures property tab? In GUIDE? From the figure toolbar?

[Gethin Roberts]

when I have the figure open, I try to open the figures properties from there, through 'edit', on the figure toolbar

[Walter Roberson]

check your firewall settings

[Gethin Roberts]

Thanks for the tip. I looked in the firewall settings, and even switched it off completely, then rebooting the Mac, but still the same.

Answer 1

[Akshay Kumar]

In order to debug the issue, try out the following steps:

1. Try launching App Designer through command line by typing the below command. Does this open as expected or are there any error messages? >> appdesigner
2. Open any documentation using the 'doc' command.
3. In MATLAB, go to "Preferences -> MATLAB -> Web" and see if "Use a proxy server to connect to the internet" is checked. If it is, un-check this option and see if the issue is still reproduced.
4. Paste the following into any browser and see if it gives the message: "The connector service is running." localhost:31415

[Gethin Roberts]

Hi, thanks for the reply.

when I try your suggestions I get

1. app designer seems to open as expected.
2. the doc command has the same error as when I try to open the figure properties
3. The use proxy server was not checked.
4. When I paste localhost:31415 I get th efollowing message "The connector service is running."

[Akshay Kumar]

This looks to be some kind of unexpected behavior. I would suggest you to contact MathWorks Technical Support to get more assistance.

You can refer to the below link to do so:

https://www.mathworks.com/support/contact_us.html

Answer 2

[Sam Centanni]

Has this question been resolved? I am having this same issue with the 2019a version and cannot find a solution

[Gethin Roberts]

Hi, yes Matlab got back to me with the following, which worked for me. Good luck. Gethin

I understand the issue you are facing is specific to MacOS. If the steps that you tried did not work, you could try connecting to a different network, that could also help.

If that also does not work, I would suggest you to try the following -

1. Navigate to your hosts.txt file by following the directions in this link (note: you will need administrator privileges on your computer for this step): https://www.imore.com/how-edit-your-macs-hosts-file-and-why-you-would-want (only follow up to the point until you see the file)
2. Check that 127.0.0.1 says localhost. If yes, you can end here. If it doesn't say localhost, please continue with below steps.
3. Find the ‘original’ hosts file 'hosts~orig’ in the same directory, duplicate it and rename it after deleting the original empty hosts file.

[Sam Centanni]

This worked! Thanks!

[Arunima Sharma]

Hi. Even I am facing the same problem. I am using MacOS Catalina 10.15.1 and Matlab version 2019b. I checked hosts file of my mac and 127.0.0.1 says localhost.

What else can I try to sort the issue?

Thanks a lot!

[Marco Turrini]

Works like a charm! thanks