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brandern
New Member
May 6, 2026
Question

500 Internal Server Error on 7.4.7 Web GUI

  • May 6, 2026
  • 2 replies
  • 73 views

I am attempting to access the web GUI for a standalone FortiSwitch 124E-FPOE running 7.4.7. However, I am getting a “500 Internal Server Error” from multiple machines and browsers, even after a reboot (done via SSH CLI).

I attempted to follow the instructions here: 

to get more information, but the only thing displayed in the shell is:

acces_res_check.c [    88] : Received '/access_res_check' request from '<source_ip_redacted>’

 

None of my searches have found anything I can do to resolve the issue. Any support would be greatly appreciated.

2 replies

RBA
Staff
RBA
Staff
May 6, 2026

Upgrade to 7.4.8 version to fix the issue. The issue you are facing is a reported issue and fix is available in 7.4.8

    msanjaypadma
    Staff
    msanjaypadma
    Staff
    May 6, 2026

    Hi ​@brandern ,

    I could this issue reported as know issue with below mentioned Bug ID : 

    1114032  - A switch port reports an HTTP 500 error when loading in the GUI.
    You can find this details in release notes. : https://docs.fortinet.com/document/fortiswitch/7.4.8/fortilink-release-notes/55061/known-issues

    Fixed in v7.4.9 : refer the release notes :
    https://docs.fortinet.com/document/fortiswitch/7.4.9/fortilink-release-notes/82133/resolved-issues

    Upgrade the device to FortiOS v7.4.9 and check the status.

     If you have found a solution, please like and mark it as solved to make it easily accessible for everyone.

    Thanks,
    Mayur Padma

    Thanks, Mayur Padma
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