Known Issue: HTTP 500 and "Could not load file or assembly" errors may occur after upgrading a beacon to version 2020 R2.2 (16.2) due to web.config file not being updated (IOJ-2183358)
After upgrading a FlexNet Manager Suite beacon to the 2020 R2.2 (16.2) release, agent logging may show HTTP 500 "internal server error" failures when attempting to upload and download data from the beacon.
To further qualify this problem, logon to the beacon and browse to http://localhost/ManageSoftDL. A beacon affected by this problem will display a page reporting an error like either of the following:
The Application event log on the beacon will also show errors like the following:
This problem occurs because the beacon upgrade process may not merge new assembly bindings into the beacon's web.config file.
Modify the C:\Program Files (x86)\Flexera Software\Inventory Beacon\DotNet\Web.config file on the beacon and replace the lines within the <assemblyBinding> element with the following:
After editing this file, restart Microsoft Internet Information Services (IIS) and the Beacon Engine Windows service.
This issue has been fixed in the following FlexNet Manager Suite releases: 2020 R2.3 / Apr 2021 (Cloud), 2021 R1 (On Premises)
Master issue ID: IOJ-2183358
Also known as: FNML-73099