hello
I have a routerboard ccr1016 and also have a tp-link router , where is the ruterboard is set pp and hotspot .Someone has done reset for tp-link router , Which caused me a problem and a break in the net , This is because the router tried to impose a DHCP , as aresult clients became taking DHCP from tp-link router instead of my routerboard .
What I can do to solve this problem ?

That should be as simple as disabling the DHCP server on your TP-Link device. From what I remember from TP-Link devices, that shouldn't be to hard to accomplish.

please , can you be more clear .

1) open tp-link administration page
2) click DHCP from menu
3) click Disable option
4) click Save button

clear enough?