New Contributor II
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4 Messages
NETGEAR CM 1200 Cox Gigablast Speed Problems
I set-up a NETGEAR CM 1200 after having the Wifi Panoramic. Decided didnt want to continue renting from Cox. I'm using an Orbi RB20 Router.
It's strange when I run a wireless speed test on MacBook I'm getting download speeds all over the place from 20mb to 350mb. Upload have been constant between 25mb & 40mb. When I run speed test on the Orbi using the Orbi App on iPhone I get download speeds around 550mb and upload speeds around 40mb consistently. On same iPhone using the Okia Speed Test app speed test is around 250mb to 300mb with upload speeds around 35mb.
My speeds on MacBook Pro drop as low as 20mb sometimes and have been ranging between 20mb and 350mb. I contacted Netgear and they said problem appeared to be the Upstream Bonded Channels 1-4 are locked but 5-8 are unlocked. All of the downstream bonded channels are locked.
Cox Reps (I spoke w/2 on 1/3/20) says they don't provision 3rd party modems. Netgear saying they cant lock channels 5-8 which is what they say problem is.
Do I need to just return this modem and go with Arris CM8220? That is what Cox representative suggested.
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Robert_M_
New Contributor II
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4 Messages
Also, I'm trying to upload screen shot from Netgear Genie but seems I can only insert URL or from the Community. Sorry I'm a Noob and probably doing this all wrong.. All help is appreciated.
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Bruce
Honored Contributor III
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5.7K Messages
Does the Orbi app perform a speed test from the iPhone or does it perform a speed test from the router?
If your Negear is working, it's already provisioned. Your modem is on the list of Cox certified modems. Upstream is fine, right? You only need 4 for 35 Mbps.
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Bruce
Honored Contributor III
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5.7K Messages
If you do a speed test, you need to bypass your router. Disconnect the router and directly wire a device.to the modem.
If you test through your router, you're measuring your network...not your Cox connection. If you test through your router, your wireless device is competing for bandwidth with every device connected to your router.
Post those numbers.
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