Cameras not hooking to internet after new boxes installed

[RobinSFA]

So we where having issues with our home internet and we had these pod things to extent our internet.  Our camera's worked fine with that system.  Then we asked the cable company to bring us a new pod and they changed their system and brought us these new boxes that they said where better then the pods.  Ever since our camera's have been on and off working.  I don't get it.  They work sometimes but not others.  We are trying to hardwire the internet boxes that are supposed to be wireless around the house.  Why would the camera's work sometimes and not others?  Now 4 of them are saying they are offline since 2 days ago.  Please help.

[StephenB]

What is the manufacturer of your new mesh system?  Also what is the model?

Also, is your normal wifi working well throughout the entire house?