@Kevin_Z following the router factory reset, the QoS values where set to default values and I had not changed them. Therefore it was set to standard mode, obtaining speed details from the Internet. I...

@Kevin_Z Having performed a full reset (via the Backup & Restore -> Factory Restore option), re-added the internet connection details and added the cloud connection security credentials, I can...

@Kevin_Z thank you for your response. I have tested with QoS enable and disabled. With Total Bandwidth set to 'get via internet speed' and set manually. In all cases the reported speedtest.net from...

I have a full fiber connection from my ISP. Before the firmware update I was getting over 800Mb/s down and over 95Mb/s up. Following the firmware update I am now regularly getting less than 300Mb/s...