Fiber mesh

I’ve been told that I can’t make a mesh network work with the newest infinity xer10.  The last person I talked to from technical support said he’d put it bridge stays for me and it’d work.  After an hour and forty minutes he kicked me back into the cue.  Has anyone figured this out? I’ve been to the store (no help) the sales guy who said it would work (no help) several calls to tech support (no help).  At this point I’m ready to give up and switch back to my old provider.  The xer10 hardly covers any of my house and I was told it would cover my backyard as well.