Having problems getting to the Antminer S3 IP setup page

[paramind22]

I am trying to get to the main setup page and having "This site can’t be reached"
with multiple addresses such as the one in the manual  (192.168.1.99) and the
one on the label.  I even called Comcast and asked them to help and was with tech
support for about 30 minutes.   He said he used dmz to open up all the ports and
assigned me a reserved ip which also didn't work.  The antminer has the three lights on
in the front and seems to be operational.

[paramind22]

I don't know if this makes any difference but I'm running a lot of other devices like nheqminer suprnova on the
same machine and six other small devices mining.   I also have an S1 I want to set up after this.  I realize the tech
support guy may have screwed things up more.  In that case, how do I reverse what he did?  I enjoy learning about
this stuff. 

[paramind22]

I really want to learn how to tweak this stuff myself and hopefully not call
back comcast.

I am able to log in my Gateway > Connection > Local IP Configuration

and see:

IPv4

Gateway Address:
Subnet Mask: DHCP Beginning Address:
DHCP Ending Address:
DHCP Lease Time:

(I took out the figures there)

There is also the IPv6 section with a lot of figures.

I can change and save these things on my side.  It also says "restore default settings."

then there is the XFINITY Network setting which I can't change.

[paramind22]

Turns out the new Cisco router/modem all in one uses only 10.0.0.X addresses and so all the 192 addresses of the antminers will not work.
I have to turn the bridge mode off, get another router to put into the back of the Cisco, which will then only function as a modem, and use that to access the machine.