Yes, I tried initially and it didn't work. I kind of gave up on ZTE F670L. Today, I tried connecting to LAN4 port to
TP-Link W-8968 (
ADSL Modem repurposed as wireless
router), it worked, not sure what did I miss the first time. But the WiFi coverage is similar to Airtel modem, so I don;t think wireless extender would solve the issue, I need to improve the source to an extent. Airtel keep closing the ticket I am raising saying there is no connectivity issue.
Also checked with ACT Fiber, surprisingly they are providing CAT6 connectivity, I thought they would provide
ONT, but they provide
Archer C5 router.
Finally decided and ordered TP Link
Archer C6 which should give upto 3 room coverage. Hopefully, it should solve the coverage. As I don't need speed, I have opted for 40 MBPS only, I just needed wide coverage.
Thanks for all the inputs.