Changing Wifi network Now can't use my Cams at all

Hi, I changed my wifi- network today to run my Ring items off of my home guest wifi and I followed the procedures on how to do so. As I did this it did not start well i.e no flashing blue light so had to press the orange button and wait, then it flashed great I confirmed it was flashing then connected to the Ring own network, then a screen showing 4 cameras with 4 different types of colours flashing and you guessed it right not mine. I had a single blue flashing light, not a red or a green or a flashing red/blue or nothing. I have a blue one it asks you to select one but I can't now I can't use any of them my front door video doorbell is also refusing to set up now as well. I am tearing my hair out now as to what to do. I am on Virgin Media 200mbps fibre broadband, an engineer was out on Saturday but I do not know what he could have done to cause the Ring items to suddenly stop connecting. I know Virgin Media slate Ring and state that Ring items cause issues with their broadband, how I do not know. Any ideas, please?