Thank you for making this post regarding the connection issues you are experiencing, I'm sorry to hear your devices are unable to connect. Is this affecting all of your devices or just certain ones?
I have taken a look on our systems and there are currently no issues showing with your WiFi. Have you tried performing a pinhole reset on your Hub by following these instructions:
Disconnect all unneeded ethernet cables from the rear of the Hub. With the Hub Powered on use a paperclip or similar (I use a mobile phone SIM Slot tool) and do a pinhole reset. Depress the pinhole switch for a timed 60 seconds then release. DO NOT reboot the hub but allow it 5 to 10 minutes for it to boot itself up.