Cisco WLC 2504 / software

Hi,

Have had a cisco wlc 2504 and 4 aps sitting for years, bought second hand and just starting having a look at it now. Is it only possible to connect to these and set up with the cisco software? I cannot connect via port 1 or 2, think default port 2 and use 192.168.1.1 for gui, tried connecting laptop; its showing connected to network and ports flashing, but cannot get to the GUI, tried various default ips and the one from network properties.

Can't download the software from cisco as it requires license or subscription, and the software i do have is encrypted .aes but has no password with it so cant decrypt.

Was going to use it in a garage that has a few areas with no wifi coverage.

Does anyone have experience with this set up and point me in the right direction or even tell me if this will or wont work without subscriptions?

As you can tell i have very little knowledge about this set up, i thought it would be plug and play with some set up but obviously not. Any help or advice appreciated

Thanks