Hello

So after seeing a new firmware update to resolve the security vulnerability. 

Applied the update,  rebooted.

Speed was horrifyingly around 50kbs from +500mbs.

Had to do factory reset and set up again.   Initially this works,  but I having issues with FireTV stick.   Also my printer won't connect to it. 

I have the main router which the above devices connected without any issues. 

Please let me know why the firmware has corrupted my deco units making it totally unreliable. 

Please advise the fix for this,  I have tried to downgrade but it won't let me. 

Thanks