I have followed the instructions in FAQ 252 -- https://www.tp-link.com/se/support/faq/252/ -- (several times, in fact), and everything goes well until step 8:

"Try to access the TL-WPS510U"

I can see that the green network led is green, so it looks like I have succeeded to connect the device to my wireless network -- indeed, if I switch off my router, the green led on the print server goes out -- but how do I connect to the print server again to finish the set up? Neither of the IP addresses 192.168.0.10 or 192.168.1.10 work. (I've tried pinging as well.)