hello zorinos , im new here in forum , i noticed somthing strange since zorin 12 Lite and now im using ZORIN 15.3 Lite , the problem is that i can connect to my normal wifi , i mean my normal rooter TENDA but when i try to connect to my Wireless Range Extender ( TP-Link AV600 or D-Link DAP1320)i get connected normaly but i have no internet , the same problem that i had in my old zorin os 12 Lite , any idea to get those Wireless Range Extender to work fine ????? thank you so much i will wait for any help
hello thanks for you answer , my extenders work fine on mac os x , windows 7 and other Linux distros , only zorin os have this problem with all my Wireless Range Extender
1-It's your network running in dual-band mode? Right now in my TENDA s rooter option channel its set to AUTO and Bandwidth to auto too . all gadgets at home phones , pcs TVs all work fine except Zorin os
2-What model is your laptop wifi adapter? its imac 8.1 ( 2008) with Broadcom
BCM4321 802.11a/b/g/n (rev 05)
3-Did you configure the extender to run in dual-band? Is that possible? my extenders are allready configured and work fine in windows , mac os x , and many linux s distros ....also work fine in all phones at home and Tvs too 
thank you so much for your time 337harvey, i will test all what you say , then i will tell you if i solve it or no 