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ColdFusion_User
New Participant
November 5, 2025
Question

ColdFusion Server 2021 - 500 - Internal server error.

  • November 5, 2025
  • 1 reply
  • 346 views

Hello Community,

I have inheritted some ColdFusion servers (2021). That has been running great so far but recently, I encountered an odd issue with one of the servers. The issue is that the server stopped processing requests on all instances, whether from websites, APIs, etc. I have tried a number of actions to get this server to start processing requests but all actions have been proven futile at this point.

Steps I've taken:

  1.  rebooting the server
  2. resetting the IIS (restart all coldfusion services)
  3.  recreate the IIS connectors (restart all coldfusion services)
  4.  Ensure all services are running
  5.  Upgrading to the latest available patch (22) on all instances
  6.  Tried creating a new cluster and instance
  7.  I've given elevated permission to the IIS user (IUSR) for all sites
  8.  Verified certs
  9.  Verified Handler mappings
  10.  I checked all possible logs (server, application, exception, etc) but can't find anything that would indicate the error.
  11.  Check event manager logs for System and Application but don't seem to find anything that jumped oput
  12.  I followed some extensive process I found using AI but still nothing.

 

I can't seem to open a case with adobe as I am getting the error below and the admin is no longer available.

 

 

What I haven't done so far is to re-intsall the IIS Roles and Features. If anyone has experienced and have a solution or can help in anyway, please reach out. Thank you

    1 reply

    Charlie Arehart
    Charlie Arehart
    Community Expert
    November 5, 2025

    I'm sorry to hear of your challenges. First you have not shown what the error is. Your screenshots show that Cf itself is working, which is a great start. I suspect it's something in your iis configuration. The error message may help us, but perhaps not. 

     

    I'll say as well that I am confident I could have your server back up (cf site serving requests again) today, perhaps in as little as 15 minutes, via remote screenshare consulting. For more on my rates, approach, satisfaction guarantee, online calendar, email, phone, and more, see the consulting page at carehart.org. I have open slots now and into this evening. I can also help after what's offered on the calendar. 

     

    Hope we get you back on your feet ASAP, one way or the other. 

    /Charlie (troubleshooter, carehart. org)
    C
    ColdFusion_UserAuthor
    New Participant
    November 6, 2025

    Good morning Charlie,

    Thanks for reaching out. I tried uploading more screenshots but they keep getting discarded, not sure why because there's no sensitve data being captured. Let me try again.

    Website Error:

     
    CF services:

     
    IIS Connectors

     

    In regards to your rates, I will have to consult the business as this is an enterprise level setup and get back to you on that. I also believe it's the IIS but not sure what exactly.

     

    D
    Dave Watts
    Community Expert
    November 6, 2025

    I'm not sure what you mean by "enterprise level setup". Do you have paid Adobe support? If so, try to take advantage of that by contacting them directly, if you can. That might be by phone or email. If you don't know, you might take your chances with cfsup@adobe.com (I think that's the right email address) where you'll often get informal and free support. They may be able to solve this within half an hour or less.

     

    This problem is probably in one of the log files you mentioned above. You have a lot of instances - can you go through them and turn them all off, then turn them on one by one? (This seems unlikely, but I figured I'd ask.) My guess is that there's a conflict of some sort between the different CF services, though I can't really imagine what that would be. I'd try turning the cfusion service on last, after all the other CF services.

     

    Finally, if you can pull the money out of petty cash or whatever, @Charlie Arehart does provide good services, and if he can fix it in fifteen minutes or so, you're only paying for that time spent rather than a full hour. If this is a production outage, I think it's worth getting him involved.

     

    Dave Watts, Eidolon LLC
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