Hi,

I need help to investigate problem related to my TP link router

My Investigation: 

1) i have tested cable with cable tester (its perfect)

2) When i use cable with another wifi router internet works perfectly.

3) when i connect tplink router internet browsing is too much slow and most of the time router does not connect by hitting "192.168.0.1"

most of the time when router is connected i get "You have no authority to access this router!"

4) I have tried to turn off firewall, but no use.

Please suggest me right settings or tutorial to investigate it.

it seems like configuration issue but experts can guide me better.

any help would be really appreciated.