Echo is unresponsive. Please Help

[wkholi]

Hi all
My echo lately has not been responsive.
When I say a command, the blue light lights but it does nothing.
If I say the command to the iPhone, it says that it can not connect to the network.
Oddly, if I run my iPhone on 4G and not wifi and say the command through the iPhone, it responds right away.
Obviously, it is a router setup issue, I have contacted Alexa support and my ISP provider but no one has a clue.
Has anyone had this issue and know of a fix?
Many thanks in advance

[VKSheridan]

Try doing a factory reset on your Echo device.  It sounds like it’s hung….