Unable to access ThingWorx Composer (Resolved)


Attn.: This issue has been resolved for me. Thanks.


First of all, thank you for this awesome training. I’m really enjoying this and gaining great deal of knowledge.

Now, coming back to the issue I am facing. I am unable to access ThingWorx Composer / Web App located at https://ptcu-thingworx83-fundamentals.portal.ptc.io/Thingworx/Composer/Apps/Composer/index.html

When I launch ThingWorx Composer, it lets me login but doesn’t show anything on the web page.

Requesting you to please help resolve this issue so that I can proceed further with my training.

I am using Linux 32Bit (Lubuntu - Latests LTS) and Firefox version 65.0.

Please let me know, if you need any other information.

Thank you in advance. :slight_smile:

Best Regards,


Hi Ganesh,

My name is Kapil. I am also facing this same issue.

Can you please tell me how to resolve this thing.

Thanks in advance!



Hi Kapil,

I hope this issue has been resolved for you.
If not, please use Chrome browser to access PTC ThingWorx Platform. Make sure Chrome has no add-ons like ad blocker. Do not run in Incognito Mode. That’s all I did! (It takes time to load for the first time so be patient.)

Enjoy this and many other great courses by PTC.

Best Regards,


Hello Ganesh,

I’m learning the Thingworx from the PTCU and trying to connect to ThingWorx academic simulator but it is throwing an error as shown in below fig., As you are working with the same environment, please help me to connect to server.

Thanks and Regards,