What IP you are getting when connected to wifi and what is the IP of R510? If both are on same subnet, you should be able to access.
Try to ping the R510's IP while connected to wifi.
You can also try a different way to access R510. Connect you laptop directly to R510's second eth port, configure same subnet IP as R510 on your laptop and then try to access R510.
Yes, you can use a repeater but that will simply half the speed, what you are getting from Unleashed R510 (Assuming that you are going to connect router to R510's wifi as a repeater).
Regards,
Syamantak Omer
Syamantak Omer
Sr.Staff TSE | CWNA | CCNA | RCWA | RASZA | RICXI
RUCKUS Networks, CommScope!
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