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Lan speed changed after new modem install

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bpowell

New Around Here
I have a asus ac1700
My ISP told me I needed to upgrade my modem. It was a netgear cm500. My new modem is a Motorola mb8600. My subscription is 300 mbps. With the old modem and asus router I was getting a average of 340-350 mbps.
That's using the ISP speedtest.
With the new modem I have lost a average of 80-100 mbps. Wifi speeds have no change.
Is there a setting I'm overlooking?
The network adapter driver is up to date. Win 10
Also new cat 7 cables
 
check your cable connections, make sure they are all screwed down fully.
have your isp run a remote test to the modem to see if they see any faults.
If that is a common modem used for them, check the ISP support pages for advice on any settings.
Sometimes there can be learning period for a modem, but that might not apply for a cable modem.

It is a different device, so throughput might change.
 
I was using 5e cables thinking that would help. So upgrade cat 7

Something I have noticed:
I use chrome as the browser to test.

When in incognito, I get 330-345 mbps, the way it was before changing modems.
Same thing when using xfinity business speed test. Slow speeds only show in chrome, IE, and edge.
 
Motorola looked at my connection screenshots and told me to do a factory reset, which I did, and had the ISP to provision the modem.
No change.

ISP is sending a tech to check the wiring from the tap to the house.
 

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