Is it showing unable to join TP-LINK_******？ As I know, disable WMM is a good try. 1. Log into configuration page. http://www.tp-link.com/en/article/?faqid=174 2. Go to Wireless/Wireless Advanced....

Try to fix or change a wireless channel on root router and survey its connection on wa830re again. Reduce distance between router and range extender.

Hi Bart, It is for printer sever function. However, yours is not in compatibility list. I think that's the key point.

How about WMM disabled? Vanwegen, you'd better provide model no. TP-LINK may be connecting such cases.

sisifo wrote I agree with you. But I'm sure it is just a configuration issue about the Samba server embedded in the router. Infact I got access to the router via telnet and I found a "smb.conf" file....

Check this FAQ: http://www.tp-link.com/en/article/?faqid=150.