@HeungBum No, there is nothing you can do about it on IPSec, if the clients need to have access to the internet, you must use OpenVPN/Wireguard/SSL VPN or L2TP.

@Mark_kg If you turn off the controller everything will work, you lose fast roam access to guest portal and some other things that I can't remember right now. But I would recommend having the PC on,...

@Mark_kg you can use a software controller on a pc. in my opinion it is better than a hardware controller. you can run the controller on a windows pc or linux, there are many who use raspberry pi for...

@Mark_kg You need Java, have you installed it? You can also try this prerelease version, it has Java built-in so you don't need to install it yourself....

@WiltecDavid Change your DNS to cloudflare

Ok, I think I fixed it, I ran a restore of the last good backup from 5.15.8.2, now restore works after backup of 5.15.20.11.. something has clearly bugged the controller on version 5.15.20.7 and up,...