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12 Messages
Can I hardwire to modem and still use router for wifi? It's not working. Not achieving 600 Ghz speed
I should have speeds up to 600Ghz. I have a new Arris T25 voice modem and a new tp-link Archer A6, ac1200. New cat6 ethernet. My wifi is OK. I have gotten up to 300, ONE time I got 450 direct wired to the modem. I just fininshed abnother reboot of modem and got 299 speed wired to modem with router disconnected. Usually wifi is in the 100's though. I want to try having my laptop wired DIRECT to the modem to have consistent highest speed possible, and then also having a wifi network. The modem has 2 ports, but when I connect one to the laptop the wifi will not work. The wifi will not work on ANY device connected to the router if the pc is wired to the modem. When I wired the pc to the router I got the same speed as on wifi and the same network name. Should the speed wired to the ROUTER be the same as the speed wired directly to the modem??
On Ethernet alone I get unidentified network. I have to restart everything to switch it. I have a Lenovo yoga 710 which has an intel AC3160 wfi card and a realtek PCI GBE . I don't understand if I should be enabling the Local area connection or the "ethernet" when I want to use the PC as wired. I'd like to be able to use it wired at the desk, but be able to use wifi if I leave the room. I want the best wifi speed I can get.
Is there something I'm missing that when I hardwire to the modem my wifi network goes out? The pc lists the network, but with "no internet"
I don't know what I have messed up here. I have restarted everything so many times. Does the laptop have to be restarted everytime, because it is not quick!!
Finally, I just read the the modem may need 2 ip addresses and I'd have to ask Comcast. Could that be it? Will they give me 2?
Thanks!
cindywade
Frequent Visitor
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12 Messages
5 years ago
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EG
Expert
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107.1K Messages
5 years ago
On a residential connection, only 1 port is active on the T25 cable modem,
First, check the "Rate Card" for your local area to see if that feature is even available anymore. Seems that it is being phased out;
https://www.xfinity.com/support/rate-card/
It's a PDF.
Scroll down to "Xfinity Internet" and look for "Additional IP Addresses".
If nothing is listed then it's likely to have been discontinued in your local market area.
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EG
Expert
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107.1K Messages
5 years ago
As stated, only one port is active on the modem because Comcast supplies only a single WAN / public IP address to residential connections.
If additional IP addresses were still available in your local area, you wouldn't get one automatically. There is an additional fee involved.
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cindywade
Frequent Visitor
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12 Messages
5 years ago
I found out that to use both ports on the back of the modem I need to have 2 ip addresses, and apparently xfinity doesn't give you more than one unless you are a business (and pay for a bundle of 5) . So my only option is wired to the router. Apparently, I "should" be able to use the router and direct connect as well, but Comcast doesn't think so....
JUST tried a new speedtest from OOKLA , it prompted me to use a speedtest from the windows store and it showed much higher speeds. About 300 on wifi and 416 wired to router. Still not the Extreme level speed that I'm paying for, but it's more like what I expected. That wifi speed is probably all I need at that rate. I'm still curious about speeds direct from modem, but since I can't use the router at the same time I guess it doens't matter what speed the modem provides. Probably didn't need that docsis 3.1 and it's higher price after all.....
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