LMS 4.0 Inventory add/import/manage page hangs

Question

Hi! I am trying to access the module add/import/manage without success. I am seeing only the sign "Loading" for a long time in my IE browser. I`ve tried to restart browser and access from a different PC - nothing changes. All the others modules are working well.

Answer 1

How were these devices added?  You can uncheck auto allocation, click Apply.  Then re-check and click Apply.  Does the behavior change?  Or perhaps you could try deleting a device and re-adding it to verify it populates throughout the application.
Adding Managed Devices
If you do not configure the Device Policy Management using Inventory > Device Administration >  Device Allocation Policy, you can manually add managed devices.
You can select a device from the device selector, which shows only the unmanaged devices, and add it  as a managed device. To do this select Inventory > Device Administration > Add as Managed Devices.
If you neither configure the Device Policy Management nor manually add managed devices, devices will  not be automatically managed in LMS, in spite of adding the devices in DCR, using Inventory > Device  Administration > Add / Import / Manage Devices > Add, and discovering them using Inventory >  Device Administration > Discovery > Launch / Summary.