I just installed wrt firmware (it was compatible with my TPlink TL-Wr 740n) and it installed successfully but now when I tried default getaway I can't access router login page.I tried PUTTY.I tried hard reset several times.ipconfig /renew | Release are both not working either.I verified several times that default gateway is 192.168.1.1.It's responding to ping but no login page.Any suggestions, please
Before installing a third-party firmware, you should have first ensured that you have the installation media for the router's original firmware from the manufacturer, and also that you master the know how, or have the tools, to force its installation in a bricked router, just in case.
If the installed firmware was DD-WRT, its default username is root and default password is admin. If these do not work, do a hard reset and try again.
If this does not work, reinstall your original firmware. Assuming your router is the TL-WR740N V5, you can download its firmware and installation utility from the TP-Link Support site. If your router is not the V5, search for it in the TP-Link site.
In the case that this also fails, and as you can access the SSH, you can use the firmware and instructions found in the page TP-Link stripped firmware. Even if this revives your router, I would still reinstall over it the firmware downloaded from TP-Link, just to be sure.
First of all thanks to all for your help in resolving issues.The first clue I got was using SSH instead of telnet by @alex.Then I followed This Link and it was of some help but no firmware was working from maker's site and then @harrymc helped by providing that link of striped firmware's that actually worked and now my router is restored to default condition.