Problem on EX8000 or RAX80

[johntao278]

I recently bought the RAX80 for replacing x6s router and I use a Ex8000 extender for more range coverage. After I set up the RAX80 my internet speed is almost the same but once I connect to the extender, the wifi speed drops significantly from 500 Mbps to less than 200 Mbps which this has never happened on x6s before. I use the same way as ususal ( using the nighthawk app to setup the router and using the desktop to set up the extender) and try all the methods I can to think of such as update the firmware, reset the extender, reboot the router and extender, making new connection etc. I don't think the RAX80 it self have problem ( I may be wrong at this )  because the internet speed can be reached to 500 Mbps before I set up my extender now I don't know what caused the extender slower.

[johntao278]

Any one else had this problem?