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New modem = latency error on my smart tv

R

ricleo2

Golden Member
ATT sent me a new modem where speed test is at 20 mbps on my wireless laptop and wired desk computer. But on my Samsung smart tv the wireless speed is so slow I can't play Google movies, Amazon prime, or HULU. Before the new modem it was working fine. Ookla speed test says there is a latency error and won't run. Any suggestions? Thanks.
 
Ok, first off, "modems" don't have wifi. "Gateways", have modem/router/wifi. Do you have a Gateway?

Second, do you already / also have a secondary Router, like a Netgear, Asus, or Linksys? Is it plugged into the Gateway? If so, and you haven't logged into the Gateway, and disabled the wifi and the routing function, and enabled Bridge Mode to effectively turn it into a dumb modem, then your connected devices are going to be suffering from Double NAT, which is generally considered a Bad Thing, although it barely affects basic Web Browsing.

You said that "before, everything on the smart TV worked fine". What Router was the smart TV connecting to before? Was your previous device a Gateway, or is it connecting to a local wifi Router, that is now plugged into the new Gateway, rather than just a modem before?

Is it the Speed Test on the Smart TV that's giving the "latency error"? What happens if you run a Speed Test on your wired PC? Wireless laptop? Do they all give "latency error", or just the Smart TV?

Edit: Did you first try powering off all of the connected devices, and then powering them up in the proper sequence?

If you swapped modems or Gateways or whatever, and left the TV on and running, there may have been IP address issues with the TV and router/gateway.
 
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Ok, that's great. But you didn't answer any of the questions.

Do you have a separate "router", besides your "modem" from your ISP (which seems like it's a Gateway)? If so, then you will likely have to configure it, or choose how you want it configured, if you want to avoid future issues with it.
 
All I have is the one device that ATT uverse tech support called a modem. I always thought it was a wireless router. The new one had no SSID, setup was basically automatic with the help of a WPS button.
 
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