Signal Keeps Dropping - Internet Bridge light flashing

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My tado system has been workng well since installation until recently - The internet bridge keeps falling off and goes "offline"

It seems to drop on and off at certain times of the day, and then at other times works well

I have located the bridge right at the centre of the house, reasonably near to the boiler and centre to all the radiators

My internet and wifi at the house has been upgraded

If i reboot the internet bridge that sometimes helps


Any other suggestions would be most welcome