@viszlaib I spoke to TP-Link and they suggestested a simple reboot of the router which worked. I now have access to the cloud via my router and IFTTT can communicate with my router.

@viszlaib Same problem here. I have a c9 v5 which does not react when i try to log into the tp-link cloud via my local login. I input my correct login details and click login but nothing...