Model :

Hardware Version :

Firmware Version :

ISP :

I have ADSL line and when connect this router after splitter , found the land line is down.. i tried with another 2 different routers & Splitters , land line and Internet connection are up without any problem... I was using TL-MR3420 mainly as 3G router and it works, but i discovered this problem when i switched it to ADSL (WAN)..

I upgraded the firmware also but still same problem

Is this related to ISP or Router configuration or the device itself is fault ?