| [CA] Cox Supplied DCP3010 cable modem I have a home network and I had a Linksys modem and have a linksys router. All has worked fine for some time. I switch to a preferred package and needed a DOCSIS 3.0 modem and went and got a Cox supplied modem.
When I hooked the modem up to my network, I would get an amber link light and could not start the registration process. I then hooked the modem directly to my pc, got a green link light and completed the registration.
Hooked everything back to go through the router, power cycled the router and made sure I got new IP address from the modem, and I still get a blinking amber link light on the modem. I do get internet access and my speeds seem to be in-line for what I am paying for.
I can unhook all PC's from the router and I still get a blinking amber link light. It appears as if the router and the modem are having issues talking.
So the question is; is there a compatibility issue with my router?
Router is a Linksys BEFSR41 V4.3
Any one have an idea??
Ken |
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Reviews:
 ·Cox HSI
| said by kenl4707:I have a home network and I had a Linksys modem and have a linksys router. All has worked fine for some time. I switch to a preferred package and needed a DOCSIS 3.0 modem and went and got a Cox supplied modem.
When I hooked the modem up to my network, I would get an amber link light and could not start the registration process. I then hooked the modem directly to my pc, got a green link light and completed the registration.
Hooked everything back to go through the router, power cycled the router and made sure I got new IP address from the modem, and I still get a blinking amber link light on the modem. I do get internet access and my speeds seem to be in-line for what I am paying for.
I can unhook all PC's from the router and I still get a blinking amber link light. It appears as if the router and the modem are having issues talking.
So the question is; is there a compatibility issue with my router?
Router is a Linksys BEFSR41 V4.3
Any one have an idea??
Ken
Its most likely because your router doesn't have gigabyte ports, and when the modem is direct connected to your pc, your PC's NIC has gigabyte port compared to the 100/10 ports that router has. You might want to think about upgrading that older router someday to something that has gigabyte ports. |
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| reply to kenl4707
So would this router work?
D-Link DGL-4100 Broadband Router.
The only issue I have is that it says the WAN connection is 10/100 and the ports are gigabit
•One Fast Ethernet 10/100 WAN port which supports virtually all broadband Internet connections
•Four Gigabit Ethernet 10/100/1000 auto-sensing LAN ports
Any Ideas
Ken |
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Reviews:
·Cox HSI
| said by kenl4707:So would this router work?
D-Link DGL-4100 Broadband Router.
The only issue I have is that it says the WAN connection is 10/100 and the ports are gigabit
•One Fast Ethernet 10/100 WAN port which supports virtually all broadband Internet connections
•Four Gigabit Ethernet 10/100/1000 auto-sensing LAN ports
Any Ideas
Ken
Well the light will still be amber, But really that isn't an issue to begin with. As long as your setup you have now is providing what you need. I wouldn't worry about upgrading. |
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| reply to kenl4707
An inexpensive way to make the light turn green would be to install a cheap Gigabit Ethernet switch (only two ports are needed, so a 5 port model is quite sufficient) between the modem and your router.
This will not give you 1000 Mbps speed capability, of course, but it will fool the modem into thinking that it is connected to a router with a Gigabit Ethernet WAN port. |
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| reply to kenl4707
To be clear, what I'm reading is, this modem expects a gigabit WAN port on the router, right?
Wouldn't you expect Cox to know this when they sell you the modem and then pass this information on to the user?
Ken |
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 SDKiwiVIP
join:2002-05-27
El Cajon, CA
kudos:2 | From page 14 of the DPC3010 online manual:
2 ETHERNET—Bridged RJ-45 Gigabit Ethernet port connects to the Ethernet port on your PC. This port also supports 10/100BASE-T connections |
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| reply to kenl4707
why did you need a Docsis 3.0 modem for preferred? |
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 Optimus2357Premium
join:2010-11-21
West Warwick, RI
kudos:1 | reply to kenl4707
I think the issue was the router wasn't passing the 172 IP address for self registration to the PC. This doesn't have anything to do with the connection rate between the modem and router though. Its just when you bypassed the router, and registered the modem, the modem now had a normal valid IP and the router accepted it let your computer online. Also, even if the connection rate on the modem or router is 10/100, that doesn't cause a bottle neck, even if you had Ultimate.
On a side note, the DGL-4100 is a very good router. Has some quality features, but research exactly what you need first. You can get much cheaper wired routers, or you if you really need a 10/100/1000 WAN there are cheaper wireless routers you can buy and just disable the wireless. |
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gizmo88
join:2007-12-06
Encinitas, CA
1 edit | reply to lilstone87
Powerfully ignorant. All he needs to do is power cycle his modem. I just setup my Cox service today with the exact same modem. I use a 100mb Netgear router.
There are several ways of diagnosing issues. Buying another router is step 10, not 1.  |
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Reviews:
·Cox HSI
1 edit | said by gizmo88:Powerfully ignorant. All he needs to do is power cycle his modem. I just setup my Cox service today with the exact same modem. I use a 100mb Netgear router.
There are several ways of diagnosing issues. Buying another router is step 10, not 1.
Powerfully ignorant? First of all, I suggested it, never told him go out buy one now. If anyone is ignorant, its Cisco for not supplying detailed info about its lights. If the problem was him needing to reboot the modem once the router was hooked up, still doesn't explain him having a internet connection. Because we all know the modem needs to reboot after hooking up the router, due to the change in mac address. |
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 squid13Premium
join:2004-02-22
Cantonment, FL | reply to ajwees41
said by ajwees41:why did you need a Docsis 3.0 modem for preferred?
Because if he has Docsis 3 on his node then he'll need a Docsis 3 modem. To get Docsis 3 all that's needed is to be on your node and available to you. What package you have has nothing to do with it.
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Any day above the grass, is a GREAT DAY. |
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Optimus2357Premium
join:2010-11-21
West Warwick, RI
kudos:1 | I don't believe that isn't entirely accurate. If his area has DOCSIS 3.0(D3), he can take better advantage of it with a D3 modem. You can, and most do, use a D2 modem on a node that is D3 compliant however. You can even use a D3 modem (most of the times anyway) on a node that is D2 only, since most modems are backwards compatible. I think his point was it is somewhat over kill. |
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squid13Premium
join:2004-02-22
Cantonment, FL | Why would you use a D2 modem on a node that has D3? Use a D3 modem and you will have channel bonding. I'm on preferred and using an SB6120 with no problems and have 4 channels bonded.
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Any day above the grass, is a GREAT DAY. |
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| reply to kenl4707
OK everyone let us take a step back and recap the issue here.
first; I need the Docsis 3.0 modem for preferred because Cox says I do. With a Docsis 2.0 modem you do not get the throughput that a preferred account should get.
second; The LINK light is amber with a steady blink that has nothing to do with data transfer. If I remove all connections to the router ports, the LINK light will still blink at the same rate. This is indicating a network problem. BUT I am getting the proper throughput on the internet.
third; logging on to the router, I can see that I have a valid IP address, subnet mask, default gateway, and three static DNS servers. I have released the DCHP address and renewed, with no change.
Forth; I have power cycled the modem and the router. I powered down the modem and the router. Then powered up the modem, waiting until it came all the way back up, then powered on the router. No change to the symptoms.
I have felt from the start, I'm missing some small setting on the router to make this work. I'm just not sure what it is.
I looked at the on-line manual and noticed this:
If you are connecting multiple PCs to the cable modem, you should first connect the modem to the uplink port of the hub using the correct crossover cable.
I used the cable that came with the modem and I tried the one that was connected to my old modem, no help.
Could it be a bad modem? |
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| reply to kenl4707
Ken,
»192.168.100.1/
When you click on this link in the downstream channels do you see 2-3 channels? If so you are connected via D3.
Also post your modem signals so we can see your modem values
omit your mac address info we dont need it |
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| reply to kenl4707
From the modem web page:
Model: Cisco DPC3010
Vendor: Cisco
Hardware Revision: 1.0
MAC Address::
Bootloader Revision: 2.3.0_R1
Current Software Revision: dpc3010-v302r12901-100630as-COX
Firmware Name: dpc3010-v302r12901-100630as-COX.bin
Firmware Build Time:Jun 30 2010 17:18:16
Cable Modem Status: Operational
Downstream Channels
Power Level Signal to Noise Ratio
Channel 1: -5.6 dBmv 37.2 dB
Channel 2: -5.4 dBmv 37.2 dB
Channel 3: -5.4 dBmv 36.8 dB
Channel 4: 0.0 dBmv 0.0 dB
Channel 5: 0.0 dBmv 0.0 dB
Channel 6: 0.0 dBmv 0.0 dB
Channel 7: 0.0 dBmv 0.0 dB
Channel 8: 0.0 dBmv 0.0 dB
Upstream Channels
Power Level
Channel 1: 43.2 dBmv
Channel 2: 0.0 dBmv
Channel 3: 0.0 dBmv
Channel 4: 0.0 dBmv |
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| cool definately have 3 downstreams locked in and levels look good.
Your definately on d3, how are your speeds? |
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| reply to kenl4707
Ping 25 MS
Download 51.41 Mbps
Upload: 6.18Mbps |
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| definately doing well. are you having any issues or you rrunning okay? |
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