Motorola Surfboard's DHCP - Windows 7 Not Receiving IP From Device

Dec 4, 2012

I have a SB6121 Motorola Modem for my Comcast Service.The modem is supposed to give out an ip range of 192.168.100.11-40When I reboot the modem I temporarily get a 192.168.100.12 IP address but then somehow it changes to a 68.42.83.47 ip.I can't get it to stick on the 192.168.100.x network so I can't access anything.Before I had my pc connected to a Netgear Router which received the internet from the SB6121 but I am needing to troubleshoot some issues with a freePBX server so I plugged straight into the gateway.

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Motorola SBG6580 Surfboard :: Port Forwarding Minecraft On This Device

Jul 30, 2012

How do you port forward Minecraft on a Motorola SBG6580 because I tried it and it didn't work I really want to have my own minecraft server,Dont say to go to portforward.com because I tried it and it didn't work it says the port is still closed when I check it on yougetsignal.com

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Motorola SBG 900 Wireless Surfboard Gateway?

Sep 4, 2011

I use Motorola SBG 900 Wireless Surfboard Gateway with Timewarner service provider. I have couple of problems....

Problem 1 : I use VOIP phone (Vonage) which connected to my Motorola wireless device, current when i call somebody using VOIP phone, they can hear my voice but i cant hear them... Last years i dont have any problem but last one month above problem exists.

Problem 2: I tried Speed test with cable (13MBPS download stream) but through wireless (6MBPS download stream)

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Mar 4, 2012

The only way we can use our Motorola router is unencrypted. I have gone into the router numerous times and reset it, unplugged it, retyped the WEP key, tried to shift to WPA and nothing works. None of three computers in the house will connect unless all encryption is off. We live in a good neighborhood on a cul de sac, don't get a lot of traffic through here, and know the immediate neighbors, but nothing is stopping a stranger with a laptop from sitting on the street and using our wifi. I've talked to the Comcast tech. The trouble just seems to be our boxes won't get past the WEP encryption stage.

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Feb 2, 2011

I have second hand motorola surf board and it has been deactivated from the company. how can i reset it and activate it to my computer manually.

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Dec 21, 2011

I own a Motorola SurfBoard SBG900 wireless modem. It has worked fine for years. I just went on vacation for 2 weeks and unplugged my computers, printer, modem etc. Upon returning I can not get any wireless signal from my sbg900. The wireless light at the bottom is no longer lit up either. I can connect via ethernet cable however.

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Sep 20, 2012

I was wondering if it was possible to connect my Motorola Surfboard SB6141 to my xbox 360. The internet works fine on my computer but when I plug the cable into my xbox it doesn't connect to live at all.

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Jun 22, 2011

I can't get my PC to connect to my broadband. I am running windows 7 64 bit and use the following:

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NetGear WGR614 wireless router

I am able to connect with other devices (iPhone, Roku) to my wireless through the wireless router. My computer recognizes the broadband connection, but it won't connect to it. I get two errors when I try to connect:651: the modem has reported an error, and 638: the remote server is not responding in a timely fashion.I have tried connecting the ethernet cable directly to the modem, but I get the same results.Also, I have tried to cycle down the computer, router, then modem and turn them back on in reverse with no change in results.The connection worked until I clicked "disable connection" one day when I had trouble connecting (high traffic i think). Since then, the"home group" I set up originally with the connection wizard disappeared, and it had not been able to connect since then. When I try to connect I click on a small icon in the lower right that says, "not connected, connection available", then I click on the button to connect to broadband and get the errors described above.

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Use Motorola Surfboard SB5120 USB Port To Supply Internet To AVR?

Feb 12, 2012

I have a Surfboard 5120, which has both Ethernet and USB ports. According to the manual, a different PC (or, in the case of the Ethernet port, PC or switch) can be connected to each.

The ethernet port is already connected via a long, in-wall RJ-45 line to a Netgear wireless router elsewhere in the house.

As of yesterday, sitting next to the Surfboard I now have a network-ready Onkyo AVR (audio-visual receiver) with Ethernet port. I am wondering if I can use a simple USB to Ethernet connector to provide internet to the Onkyo. I am not very network savvy and don't know if the AVR would be able to connect okay.

My "network savvy" is so bad that I will probably screw it up if I were to connect the cable modem's single ethernet port to a switch, and then attempt to connect that switch to both the Netgear wireless route and also the Onkyo AVR (assign IP addresses etc).

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Motorola Surfboard SBG6580 / 2nd Computer Keeps Randomly Disconnecting From LAN?

Oct 12, 2012

I have a 2nd computer wired up to my modem, but the LAN keeps randomly dropping every 2-5 hours It never drops for my main computer.I tried swapping cords and ports, but it still disconnects, while my main computer remains connected The internet worked fine when connected to another modem in another house.Do you think this is a problem with the modem or Windows7?I hard-reset the modem to factory settings, but it still happens.the modem is a Motorola Surfboard SBG6580

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Mar 15, 2013

I have a Motorola SURFBoard 6580 as my cable modem + router + 802.11n AP. I wanted to add an AP on the second floor of the house for better signal. I have read that APs from different manuafacturers are not necessarily compatible for seamless roaming. Well, I guess the worst case is to turn off wifi on the SURFBoard and get 2 identical APs, but that's not ideal.

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Motorola Surfboard Modem Suddenly Can't Use With Wireless Router?

Dec 31, 2011

Suddenly either of my 2 wireless routers won't work. Modem works fine directly to pcIntroducing wireless router to the mix, not working. Everything hooked up correctly.

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Motorola Surfboard Blue Indicator For Incoming Signal?

Nov 17, 2011

I have Comcast and my modem is indicating (blue light ) that my signal incoming is weak but my out going is fine. I tried resetting the modem ...no change . Is my problem with the modem or Comcast ?

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Motorola Surfboard Sb5101 Modem / Random Connection Drops?

Mar 5, 2011

I have a Motorola surfboard sb5101. Provider is comcast.I have never had any problem with my equipment until now. Here is whats going on. I bought a used sb5101 a week ago so that I would not have to pay the rental fee anymore. Comcast activated it, and it worked fine for a week or two. The other night I got disconnected from XBOX live randomly in the middle of a game. Thought maybe just a hickup, no biggie. Well it happened 3 more times in a few hours, then again the next day.So thinking maybe this used modem is bad, I plugged back in the rental from comcast which I still had. Worked fine for a while, then the same thing, random dissconnects after 10 min, 30 min, 2 hrs into a game...etcOn both modems, the 1st and 4th green light are solid, the 2nd and 3rd green light are flashing when the connection from LIVE drops.So I'm starting to think know that neither of the modems are bad. I then try going directly to the modem instead of the router, never had any problems with the router but figured I try.I even went into the attic and got rid of the 4 way splitter that feeds cable into all the bedrooms and put in a 2 way instead hooking up only the cable line im using for xbox. Thought maybe the signal is getting degraded to bad, eventhough never had a problem before.So now I'm practically hooked up right to the line coming off the street, ethernet cord plugged directly into the modem, no router. Still dropping connections randomly with same 2nd and 3rd light flashing.The connection needs to be completely stable for multiple hours.Also, I called comcast when I had to reactivate the rental modem, so they did refreshed that modem and reactivate it, but still had the disconnects the next day.

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Jan 12, 2013

I need to replace my old router because the wires are broken and the problem is it needs a phone jack for the phone line we use cable not land line. My modem is SVB5120 SURFboard Motorola.

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Jan 6, 2012

Would this work ?. also, on the back of the modem is a rectangular, not the typical, usb slot. I cannot move the modem because it is connected to the wall. I don't want to use an extra long wire either. What do I need to buy so I can use the wired modem, as a wireless one on my pc downstairs ?

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Linksys Wireless Router :: Can't Connect WRT54GL To Motorola Surfboard

Jul 24, 2010

I can't connect my router (WRT54GL) to my new cable modem (Motorola Surfboard SB6120).
 
Some info:
1)  Cable modem works perfectly when connected directly to computer ethernet port
2)  ISP is Optimum Online
3)  Using Automatic DHCP setting on router
4)  Using MAC cloning on router
5)  I can access the router's admin screen from the PC
6)  I can connect to the router wirelessly, but no internet access
7)  I've tried powering down everything multiple times, still no internet access
8)  I upgraded the router firmware to 4.30.14
9)  The "link" light on the cable modem never lights up when connected to the router

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Jun 15, 2012

Motorola Surfboard 6121, Every since Com-cast has updated their network (two months ago), my Internet connection is VERY unstable.Com-cast says it is my problem because I can get reliable service at high speed using just my laptop: Win 7, and the Motorola modem. The modem does show high speed connection (blue light) when the only thing connected is the laptop.If I connect the rest of the home network; ,LinkSys BEFSR11 router, Netgear FS #108 10/100 switch, then my laptop. The Surfboard modems light turns orange (lower connection speeds). do I need to replace my NetGear switch and my router? This constant up and down intermittent connection is terrible!

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Motorola SURFboard Extreme Cable Modem Is Connected But No Internet Access

Nov 7, 2012

Today I purchased a Motorola SURFboard extreme Cable Modem DOCSIS 3.0 in order to replace my old modem which is out of date and has been very slow as of late. I connected the coaxial cable, Ethernet cable(to Linksys wireless router), and power expecting it to simply work. All four lights came on green (power, downstream, upstream, connectivity). The downstream light turned blue which indicates a bonded connection.The device light was blinking on the modem. I connected to my wireless router, but no internet access. I then tried connecting my laptop to the modem directly via Ethernet cable, still no access. I think that rules out the router being the problem. I also ruled out my laptop being the problem as the same thing is occurring with my other laptop and desktop. I called my ISP (Cox Cable) and had them re-establish connection with my modem, this did nothing. I thought for sure this meant I had purchased a faulty modem; I hooked up my old modem and the results were the same, the modem connected fully with no problem (all four lights were green) but I have no internet access.

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Linksys Wireless Router :: Link Light On Motorola Surfboard SB6120 Blinking?

Oct 19, 2011

So I just noticed on my Cable modem the link light is blinking orange, per Motorola if its blinking orange - Computer is connected via a 10 mbps or 100 mbps Ethernet port.
 
On the Linksys E4200 status page it says
 
Internet Port Speed:
Internet          10/100 mbps 
Local Port Speed    Port 1 - 1Gbps
 
Maybe I just noticed this with this router, but I'm pretty sure this didn't start happening until I updated to 1.0.03. 
 
Previously the link light was blue indicating a 1Gbps connection.

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Jun 10, 2011

I recently switched from dsl to cable. I have a e2000 router that I would still like to use. The modem I have is a Motorola Surfboard SB6121. It has no options that I can modify. The modem has a built in DHCP server. However, I can't modify it and I don't like the ip configuration it uses. For the time being I have the modem connected to a switch which is working fine. What I would like to know is how to configure the e2000 to use the modems connection. I used PPPoE for DSL and had login information.

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Apr 10, 2012

I recently upgraded a clients WLC and they keep saying they are unable to get an IP address from the DHCP server.  It's a simple, flat network and here is what the logs are showing. 
 
*apfReceiveTask: Apr 11 13:37:25.477: %SIM-3-DHCP_SERVER_NO_REPLY: sim_interface.c:1039 Failed to get DHCP response on interface 'management'. Marking interface dirty.
*apfReceiveTask: Apr 11 13:37:17.278: %SIM-3-DHCP_SERVER_NO_REPLY: sim_interface.c:1039 Failed to get DHCP response on interface 'management'. Marking interface dirty.
*apfReceiveTask: Apr 11 13:37:05.880: %SIM-3-DHCP_SERVER_NO_REPLY: sim_interface.c:1039 Failed to get DHCP response on interface 'management'. Marking interface dirty.
*apfReceiveTask: Apr 11 13:13:47.397: %SIM-3-DHCP_SERVER_NO_REPLY: sim_interface.c:1039 Failed to get DHCP response on interface 'management'. Marking interface dirty.

[code]....

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Jan 1, 2013

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Nov 30, 2011

My BEFSR81 is my primary router and has DHCP turned on.  The router's DHCP range is set to accommodate 12 devices.  I have three computers wired to it and their Host names (as specified in the set-up of each computer) show up in the router's DHCP device table.  I also have two printers (one old Brother HL5250DN laser printer and one new HP Photosmart Premier C410a inkjet printer) connected and there are blanks where the Host name should go.  I would like to be able to tell which printer is which when I am looking at the DHCP device table.  How can I get a names associated with each printer's IP address in the router's DHCP device table?  (The real problem is that the router seems to have both printers at the same IP address (192.168.1.100) and if I can get one of them to change I'd like to know which one it was!)

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Oct 14, 2011

After an upgrade of the WRT120N to firmware Ver.1.0.06 (Build 01) every device I have tried to use WPA authentication with will authenticate / associate with the device then drop the connection just prior to recieving a DHCP address.I have tried a Dell latitude laptop with the broadcom chipset, an iPhone 3GS as well as an motorola with google pad device and all experience the same problems.I have removed all mac address filtering, and re-enabled the essid broadcasting only to have the same problem persist despite stripping everything down to just WPA.

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Jan 26, 2012

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Feb 23, 2012

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May 18, 2012

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Jan 12, 2013

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May 2, 2013

I have the WRT400N router with the latest firmware. Recently I have noticed a device in my DHCP that I do not recognize. It is not device I own (believe me, I have racked my brain and confirmed) as it shows as an Acer pc. I cannot ping the IP address however. I have rebooted my router several times thinking maybe it's a former connected device but saved in memory but it keeps coming back. I am thinking possibly it is someone hi-jacking my Internet, but not sure. I am using WEP security but it shows a LAN connection which is strange for a wireless device. The only hard wired pc is my HP.

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Jun 19, 2012

This is IOS 15.1(4)M3 on a 1921 router. The LAN is 192.168.42.1/24. (DHCP config is further down.) We have a small range that we want to assign via DHCP to devices; .200 through .220 . At the same time, we have a handful of Macintosh systems to which we want to assign a specific address that is not in that 200-220 range. I don't want to configure the assignment based on the Ethernet MAC addresses because these systems might connect via UTP or wireless; that is to say, they have more than one MAC address. They only ever connect using one interface/MAC address at a time, but it's their choice; in some areas wi-fi is available, and in some areas they have to cable-up.
 
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Here's the DHCP-related config from the router:
 
router#sh run | s dhcp
ip dhcp excluded-address 192.168.42.1 192.168.42.199
ip dhcp excluded-address 192.168.42.221 192.168.42.254
ip dhcp pool OurOffice
network 192.168.42.0 255.255.255.0

[code]....
 
Is "client-name" the wrong place to configure the DHCP Client ID?

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Jan 10, 2011

I upgraded to firmware version 1.0.03 I started to have this weird issue: I have four PCs connected to this wireless router via wireless G. They all run Windows 7 Home Premium. After a few hours I started to notice that the DHCP client table is empty even if all four PCs are connected to the internet. This causes a networking problem because one of the PC serves as a file server and it grants access by IP addresses. Not being able to "see" those computers, my access is denied.

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