Hello,
Could you try to connect to the RUT360 WiFI from your MacBook several times, then connect to the router's web interface from, for example, a working laptop, download a troubleshoot file and attach it by editing your question?
To generate the troubleshoot file, access router's WebUI, go to System -> Administration > Troubleshoot section and download file from there.
The logs in the file could provide more insight into what the issue might be.
Best regards,