Any other method of collecting certs?

[nycc]

what kind of modem you trying to get private key from ? what isp is ?

[modembricker]

fastcert will not give D3 cert ,unless the modem which was clone from sub D3 modem .don't waste time on fastcert,try something else .I have alot of cert from sbg6580 , sb941 ,but they don't work on sb5101 I can share with anyone who can help

Strangely enough, I do get a few here and there with fastrcert

Model
SB612X-1.0.3.5-SCM00-NOSH

Downstream Rate: 53760000
Upstream rate : 10752000

[UnknownNY]

TWC NYC right here. when I use buzzcert I get 6 files why?
ca
CM
private.key
private_full.key
public.key
root.key

should I use private.key or privaye_full.key?