Model : Archer C9

Hardware Version :

Firmware Version : c9v1_un-up-ver4-0-0-P18[20150916-rel37772].bin

ISP :

Hi,

I had the issue with my TP-Link Archer C9 v1 that it was unexpectetly rebooting from time to time.
So I've decided to do a firmware update using this firmware: c9v1_un-up-ver4-0-0-P18[20150916-rel37772].bin
The update process looked ok and the bar went to 100%.

Problem now is that the router is no longer coming up.
When I power it on it shows all LEDs on for 5-6sec. Then all LEDs are off for 5-6secs and so on...
With the network cable connected my computer shows in this rhythm that it's trying to connect and then that the network cable is disconnected.
But I can't ping or anything, not even with a fix IP-address

I've tried to do a reset by pressing the "Reset/WPS"-Button for a while.
This results in showing only the LED with the two arrows on, but after a few seconds it returns back to the old rhythm...

Does anybody now if there's a chance to fix this?


Thanks in advance!
Chris