Having problems with my simple modem, I replaced it with a Cisco DPC3825 modem-router. Suspecting that it would be totally different than the old modem, I asked the store person if there is any manual for it. She said, it is simple, just plug it in and everything will work the same. Yes, right! This modem's LAN addresses conflicted with my (Ubiquiti) router LAN addresses, and I had to do something about my port forwarding or NAT. Anyway, after some considerable time, I managed to have it working as the old one, first, by changing its LAN address and then setting DMZ to point to my router.
My question now is, should I remove my router and use this modem's router instead? Does it function well as a router?
BTW, when I initially called cogeco support about the old modem problem, I was asked whether my wifi router worked ok. I said my router is not wifi, and I was told then "Router means wifi"!!!! So much about trusting the cogeco tech support.
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