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10+ Year-old modem. What to do?
12-13 years ago Cox installed internet to our home. We are still using the same modem today: Scientific Atlanta DGI5120
We are paying for "Cox High Speed Internet Preferred" which says that we should be getting download speeds of up to 50 MBPS and upload speed of 5 MBPS.
I just ran the Cox internet test while sitting right next to the modem and got a maximum of 7.8 MBPS download speed and 4.9 MBPS upload speed.
I ran the test again in each room of the house and averaged 3-4 MBPS download speed.
Clearly I am not getting nearly what I'm paying for. Is the modem to blame? What should I do?
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AllenP
Valued Contributor
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1.7K Messages
You may get up to 25Mbps wired directly to a DOCSIS 2 modem, not more than that. DOCSIS 2 isn't capable of anywhere near Preferred speeds. So yes, the modem needs replacement. Check here for a list of Cox approved modems.
I assume since you tested in each room of the house, you are using WiFi. What router do you have? That could be limiting you too. Today, I would replace your hardware with a seperate DOCSIS 3 modem and dual band router with gigabit Ethernet ports and capable of wireless "ac". ASUS and Netgear Nighthawk are good choices and TP-Link makes some good devices at a lower price point.
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Tecknowhelp
Valued Contributor II
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2.8K Messages
::whistles low:: I didn't know people were still using DOCSIS 2.0 modems.
"Is the modem to blame?"
Yes.
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