@Daniel1234 Like mentioned in the release note, this FW has added some new features and fixed bug, it cannot be downgraded to former release once upgraded to this one. Back to your case, we can do...

@Robbyw What is the current network diagram? How do you connect these devices together? With the Deco M9 plus works in regular router mode, what is the internet IP address of it? Is it a public...

@stathisp The TD-W8960N is a single band router, which supports 2.4GHz only. So I'm afraid that the 5GHz you saw belongs to others. May it help.

@Keithz As you know, the TL-WR941HP supports QoS instead of bandwidth control now; compared to bandwidth control, the QoS is more flexible and effective; it can make the total bandwidth be used more...

@manolis888 Please ensure that the 5GHz wifi led is on; and you can login to the web UI of the VR400 to confirm whether the 5GHz wireless broadcasting is enabled or not....

@Soundwave070 Sorry for the inconvenience caused here. We will do some troubleshooting and try to fix it. How many Deco M9 plus do you have? And how do you connect them together? Please connect them...