Have I just ruined my router?

There's this IP address conflict problem, so I changed the setting of the router to factory default by pressing the reset on the back of the router. My TP-LINK wireless router is set with no password require to connect, after the reboot I can no longer connect to the internet. So I set it on using the following ip address,subnet mask, default gateway and DNS which was given by the ISP. Once that 's done the connection seems to work fine like usual but other devices can detect the wifi but can't browse the net. So have I just ruined it completely or is there anyway to solve it and now I can no longer enter the router setting admins page.
The IP Address etc that is given by the ISP
IP: 202.137.136.99
Subnet Mask:255.255.255.0
gateway 202.137.136.1
Prefered DNS 202.137.129.1
Alternate DNS 202.137.129.3

 

You did set that in the router and not for your PC right?

 

I don't know what u mean but I set these addresses via control panel/my network places/Local Area Network/properties/internet protocol (TCP/IP/ and basically I typed these numbers in the right column so is there anyway for other devices apart from my PC to connect to this wifi. It used to work 2 weeks ago everything was just fine

 

That's not where they go. The IP addresses you get from the ISP go in the router setup page. The addresses you get in your router manual go into your PC network properties page.

 

Since I have no idea, I looked through the router's box all I see is the quick installation Guide which gives only the ip address: 192.168.1.1. However I'm able to log into the admins page after I've set it on obtain IP and DNS address automatically and then hold the reset button for 10 secs. Once I'm logged in I don't see anywhere where I can enter these addresses that is given by the ISP. Is it on the interface set up/internet or inferface setup/LAN. So I tried randomly in the LAN page and enter the ISP IP address in the starting IP address column and clicked save. Then it says that starting IP and DNS are not in the same subnet. SO I also changed the DNS IP column and clicked save this time it says starting IP and DNS are not allowed to have the same number. I'm stuck but I think I'm coming on the right track anymore advice?

 

You should not even need to enter the address given by the ISP in most cases...usually you can just leave this on DHCP and let the router figure it out on it's own.

 

Assuming you have dynamic IP on your connection. If you did, it seems unusual an ISP would send you an IP to use...