TL-WR1403ND - Cannot update firmware

[Farhad]

I'm having a strange issue with my TL-WR1403ND. Whatever I do, I cannot install a new firmware, not even the official ones. On my other TL-WR1403ND I had already installed Gargoyle last week and I wanted to do the same on this one, but I can't seem to do it. Once the file is uploaded, I get the "Please wait untill the router reboots" screen for one second but then it automatically refreshes to the login screen.

I can't seem to find anyone else with this problem after searching on Google. Anyone knows what I can do to solve this problem?

[Farhad]

Update
I finally managed to upgrade the firmware. I used my brother's laptop and it worked.