Amazon Alexa issues unable to be resolved through Amazon

I am unable to connect my Alexa Dot to my network, in fact it does not appear in a list of networks around me.  I have been trying for days, even bought a new Dot because my old smart plugs didn't work either so I bought new ones.  I bought the ones that have dual bandwidth, and I gotta tell you those were a [Edit: Language] to connect as well.  All of this trouble began after I got the new router that was supposed to make life "so much better"!!  Anyway, I am told by Amazon that maybe Amazon is being blocked and to get ahold of you and ask for the block to be lifted.  I would very much appreciate it!