Problem is that Range Extender doesn't have internet, even though light shows constant green.

My setup:
- I have two TL-WR841N routers.
- 1st one is connected to my internet cable and is setup as WIFI router.
- 2nd one is connected to the 1st one via WIFI, and is setup as Range Extender.
- On both routes I have WIFI MAC filter setup (on 1st one the 2nd one has been added)

I used the quick setup for both configuration (so no changes to IP addresses). Only change is the MAC filter.

I tried to set both of the with the same SSID and also with two different SSID.

In location of the 2nd router I still have signal from 1st router, so that shouldn't be a problem. I can also see it is connected in the "Statistics".

Please, provide me instruction for dummies on how to fix this :)