Recurring connectivity issue with InDesign
Hi Support Team,
We are experiencing a recurring connectivity issue with Adobe InDesign. The same error message has appeared again, and I’m unable to open the program. My internet connection seems to be working properly, so I don’t believe that’s the cause of the problem.
My Adobe membership/subscription is still active, and all other Adobe applications are functioning normally. This suggests that the issue isn’t related to the license itself.
Could you please advise on what might be causing this and how to resolve it?
First logout from your creative cloud client, reboot your computer (cold boot) and then login with your Adobe ID again.
If this doesn't help try to reset the CC app by following the steps below:
Bring the CC app in the foreground the press:
- Win: Ctrl + Alt + R
 - Mac: Cmd + Opt + R
 
If this doeswn't help try the steps below:
- Sign out from the Adobe Creative Cloud desktop application (Sign in and sign out to activate Creative Cloud apps)
 - Browse to the location: [System Drive]:\ProgramData\Adobe
 - Rename the 'SLStore' folder to 'SLStore_old'
 - Browse to the location: [System Drive]:\Program Files (x86)\Common Files\Adobe
 - Rename the 'SLCache' folder to 'SLCache_old'
 - Sign in to the Adobe CC desktop app
 
You may also try below steps:
Close all Adobe apps and make sure no Adobe processes are running in Task Manager.
- Make sure that Hosts file does not contains Adobe URL entries with Loop back address 127.0.0.1 .
 - Press Windows button (located between Ctrl and Alt buttons) along with R button together at a time , you will get a run command window.
 
- Type in "Appdata" hit 'Enter' key.
 - It will open Appdata folder.
 - Then navigate to Local>Adobe>OOBE. Open OOBE folder and delete " Opm.db" file.
 
Once you had deleted Opm.db file , Sign in to Adobe Creative Cloud app using Valid Email ID and check.
If this fails the next step is to try a repair of the CC client. See here: Adobe app installation stuck
If this also doesn't help the nest step is to uninstall/reinstall per linked document above.
You can also check the following socuments. There are a lot of steps to check. Especially take a look into your HOSTS file.
Purchased Creative Cloud apps appear as trial versions
How to resolve connection errors with Creative Suite applications
Reference Thread: https://community.adobe.com/t5/photoshop-ecosystem-discussions/error-18000/m-p/15295508#M884537