Motorola SB5100 / Losing Internet Connection At Cable Modem?
Mar 19, 2012
Trying to figure out if I have a bad modem or bad wiring leading to the modem.I'm losing connectivity usually in the evening when I'm sure everything is more loaded.he reason I'm concerned about the modem is that when I lose connectivity, I can't access the modem through my browser. It won't respond. This isn't just for a moment. I'll unplug the modem and plug it back in. I can access the modem after that with my browser, but more often than not, I don't regain connectivity. It keeps trying and failiing.its a Motorola SB5100 from 10 years ago. how to seperate bad wiring from a bad modem?
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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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Mar 22, 2011
So I've had this problem before and normally I solve it by simply unplugging everything from my modem and router but ive tried that this time several times to no avail. The internet suddenly cut out one day and when I did my usual unplugging thing it came back unbearably slow.Right now I'm running off a motorola SB5100 Surboard modem and a linksys WRT54G2 router and its not my computer, everyone in the house is getting terrible speed.
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Sep 4, 2011
I have a Motorola modem SURFBoard SB4200, along with a wireless Linksys router that connects to that modem. The router works normally but the modem often dies and restarts itself after about 1-2 minutes.
What could be causing this problem? How should I start debugging it?
Could an excessive amount of network traffic be bringing down the modem? Are there any tools that can monitor the modem?
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Jan 18, 2011
Every few minutes my WGR614v6 loses connection to the cable modem though the wireless in-house is strong. Cable modem being reset does not work. Resetting netgear router brings us back online but only for a few minutes. Have replaced power supply to router and it is still occurring.We have a desktop and 2 laptops online. Also, the notebooks always drop to 18mbps while the desktop stays at 54mbps.
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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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Nov 14, 2011
I recently purchased at Linksys X2000 Router/dsl modem, I ran the setup and everything works fine except for when I am trying to play games online with one device and surf the web on another device it keeps kicking one or both devices offline, but if only one of them is on it works fine.I have AT&T dsl and I have checked all my setting and the router was setup by linksys Cisco Connect program but it still gives me this issue.Is there anything I can do to fix this? My old WRT54G Router and AT&T dsl modem did not have this problem.
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May 2, 2011
My internet connection seems to drop a lot, I'm using a WAG54G2 modem connecting via a wired connection; and my ISP is Iprimus and I'm running off an Adsl2+ connection.The light on the modem that goes out when I lose connection is usually the internet although sometimes it is the DSL light, when my connection drops out I also seem to lose speed when I reconnect, which I was able to fix by pulling the power plug out and putting it back in but it no longer works as often.
The top speed I have measured via 9url]... has been 350 kb/s and the lowest has been 12 kb/s.My phone line also has a loud crackly sound which goes away when I unplug my modem from the line.I used to be able to unplug my phone line to keep the connection up but that no longer works.
This problem is not consistent as I will have days when it is bad (slow connection speed and constant connection dropping) and days when it is alright (decent connection speed and hardly or no connection dropping).I am also running a few filters for my phone, I've tried taking the filters out but that doesn't fix it, I've tried unplugging the phone which used to work as I mentioned before but no longer does.Before I bought this modem I can't remember what I was using but that had history with locking out the connection which by replacing the modem fixed my bad connection for a 5-7 months.
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Feb 13, 2012
I've been trying to connect my D-Link DIR-601 router with a Motorola SBG901 cable modem. The modem itself has a built-in WIFI (G) and one ethernet port, but not good enough for my purposes. I need more wired connections and an (N) WIFI connection, which the D-Link could provide, if I could get it to work. I just cannot get the two pieces of equipment to talk to each other. I can set up 2 independent LAN's, but no WAN (internet connection) from either. D-Link has provided pages of instrutions, but nothing works.
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Sep 18, 2011
I was working with Motorola SB6120 cable modem regarding an odd power cycle issue (it would power cycle randomly for 24 hours). While trying to diag the issue, I was taking a peak in his router config and found a port set to forward as:
Application: Comcast
Port From: 888
Protocol: Both
IP: 192.168.100.1
Port To: 80
I understand that his modem admin page is now available from the internet. He said his friend set this up to "modem", but I don't see any advantage of having this done. At this point what are the other advantages of forwarding such ports?Another key note: When the port forwarding was disabled, suddenly the power cycle issues stopped.
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Jan 11, 2013
I am looking for a router or something else that still allows me to connect my phone line to my router or computer so people in the house can make calls. My cable modem is a Motorola SBV5120 I had it for eight years now and I am thinking of switching our network to wireless so I don't get those cluttered wires.
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Apr 22, 2012
I have a 192.168.1.xxx network connected to Verizon FIOS via Actiontec MOCA / router. I also have a 192.168.15.xxx network connected to Comcast via Motorola VT2442 router (used for Vonage) and a Motorola SB6121 cable modem.
Each network has it's own gigabit switch connected to each router. The two networks are physically separated but switches and routers are physically side by side.
What is the best configuration to allow devices on 192.168.1.xxx network to communicate with devices on the 192.168.15.xxx network (share printers, NAS, etc), but still have each network served by it's respective ISP, and each device still get it's dhcp, dns, gateway, etc from each respective router?
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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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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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Mar 31, 2011
I had to made some hardware changes. All the computers are running windows XP. I changed out to a Motorola 2210 modem, d-link dir-825 router and DGS-1008G switch.Everything was fine until I made this change. I now have internet, but it is slow.
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Feb 26, 2013
when I connect my DIR-655 to the Motorola SB6141 cable modem I notice that the link speed LED on the cable modem never glows blue indicating a gigabit connection, it only glows amber indicating a lower negotiated speed. I am using a Cat6 cable between the two devices and have also tried a Cat5e cable.
When I try and force the WAN port speed to 1000Mpbs in the router interface the cable modem link speed will not light at all with no connectivity. Only resetting to Auto WAN port speed restores functionality albeit at the lower negotiated speed setting.
I'm running the DIR-655 rev B1 at 2.03NA firmware level.
I did connect the modem directly to my PC that uses an Intel Gigabit ethernet card and still had the lower connection indication (Amber) so it seems that the modem might be faulty.
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Jul 23, 2012
I have Qwest DSL 7MB internet with a motorola 3347 Qwest model modem and for some reason throughout the day sometimes fewer than than others my internet light will just go red for about 45 seconds up to 2 to 3 minutes them it starts flashing green again? I called them multiple times but they just say maybe its the modem. Is there any test I can do to see? I upgraded the firmware to the newest one to see if that would work but no luck.
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Jan 9, 2012
Cable modem connected directly to a Dell Vostro laptop works fine. Same cable reconnected to Dell Dimension 4700 is not working. This has all been working fine for years - usually I have a wireless network with the 4700 connected to the router by Ethernet cable, and the Vostro connected by wireless, but I have removed the router to close in on the problem.First, I am not sure if my ip settings are correct. This is the output from 'ipconfig /all' [CODE].
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Aug 26, 2012
The detected problem is the connection between my access point, router, or cable modem and the Internet is broken.The network gateway is accessible, but Windows couldn't receive network traffic from the Internet.All other devices (iPad, Xbox, android phone) have no problem connecting to the Internet.Desktop is the only one experiencing the connection issue.
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Jan 31, 2012
My laptop died last week and have been using my husbands, which I hate! We had some issues with computer freezing on some webpages or after being on webpages for awhile (like facebook). Yesterday it froze and I could not get it back on. When he got home he did scan disk (which I also did) and got it working after going into safe mode and doing system restore. He said an update had gotten through and messed things up. Anyhow, after he was on it a few hours last night, we lost connection. I figured the crazy weather was the culprit but it has been off all day. Our router is working and connecting but the adapter is not. Also our home phone says there is no line. We have unplugged everything several times, checked to make sure everything is in the right spots, I have even reset the router and rebooted the adapter. I uninstalled and restalled the adapter also. It is now telling me that "the connection between your access point, router, or cable modem and the Internet is broken". The only lights I have on the adapter are power, battery, DS and now the US light is blinking. The online and link lights are not on.
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Aug 30, 2011
I'm trying to learn Cisco ASA IOS commands, I have bought myself a 5505 ASA for my home network and plan to implement it. How best to configure it.
I have attached a diagram of how I want my network to look. The internet connection is via the Virgin Media cable modem.
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Sep 25, 2012
First of all, this is how my connection looks like:
PC & Xbox 360 -> Router (Linksys WRT54GL with DD-WRT firmware) -> Modem (Arris TM602B) Everything is working just fine, except for every now and then (sometimes a few times per day), when my modem decides to "stop working" for a second or two. I do not know if it is exactly the modem, but i guess that it is.
What happens, is that for a second or two, all the lights on modem stop blinking or turns off, except "Power", "DS" and "US". Those lights stays turned on. After a second or two, all the lights continues working normally.
It would not even be that big of an issue, as i would not mind if my internet radio has stopped working for a second or if i had to wait a second before continuing with browsing the web, but it becomes an annoying issue, while i am playing video games on Xbox Live. This is what causes me to disconnect from an online game, even though, everything works normally after - until it happens again.
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Dec 10, 2012
I am connecting to internet via motorola modem which gives me approx 6 Mbps download speed when I test it with both speedtest.net and speakeasy.net. Any device that I use connected wirelessly to my Belkin N300 router only acheives about 1.3 MBps of download speed. Is this just the way it is or could I have a router configuration issue or something else?
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Jun 4, 2010
some reference material about configuring my WAG320N to use my cable modem via Ethernet port 1. I've seen it mentioned that's its possible, however I've been unable to sort it out myself.
And before you ask, I've brought the DSL router as I'm moving in the next 12 months and my new base will not have access to cable internet and I'll be reverting back to DSL.
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Dec 24, 2012
I have att dsl and im using a linksys wireless router and lately my interenet keeps disconnecting. Specifically the little wireless icon in the bottom right of my windows 7 display gets a yellow exclamation mark for about 10-30 seconds then recconects. Its quite annoying and seems to be happening more often now. I have a strange setup on the router, i think its running in bridge mode or something and the modem is doing the actual routing.
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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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Feb 15, 2011
I have had this problem for ages now. Every thing will be going fine for large periods of time then randomly i will stop being able to access the internet.
I have tried pinging various things such as google.com, when i do i get a range of reposnes from no packets lost, to no repsose atall. the results from the latest google ping;
[code]...
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Mar 16, 2013
I have this problem of loosing internet connection every 1-2 min. I ping Google and I have a lots of Requested timed out about 7-8 of those then I have a reply for 30 sec than it starts again "...timed out"t first I thought it was a problem from my ISP than I called them they checked and it seems that everything it's OK and their behalf. I keep calling them for this problem and they came changed the cable and the router but the problem keeps going.I've had the same ISP for over 2 years now and I didn't have any problem but has started about 1 month ago. At first I was using a TP-LINK 54M Wireless ADSL2+ Modem Router connected throught Poppe with a username. I thought it was that the modem had the problem but the ISP brought a new modem BILLION and the problem keeps going. I've tried in two different PC's same problem.
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May 16, 2011
It started rarely, now it happens alot! the only way to get internet back is if I unplug the power cord from my STUPID router.
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Sep 29, 2012
I lose every day internet in the same time etc.in 2 pm and tomarow again in 2pm and also i get in the same time etc i lose internet in 2pm and i get internet in 7pm and tomarow again i have caled my ISP and it is not problem whit it also it is not virus.
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Nov 5, 2011
I recently bought a iMac and it has been fine apart from the wi-fi connection.It used to disconnect me for 2-4 minutes every now and then at first and then this died down, but recently it keeps losing connection altogether. When I go on run diagnostics it says that i have failed to connect to the ISP and internet.Is there anyway to fix this?,I use a Netgear router with an Apple iMac running with OS X Lion
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Apr 23, 2012
I'm connecting to the internet via my college's network, and my network trouble varies from: working fine, full speed; extremely slow; and then sometimes it loses the internet connection completely.
-I am running Windows 7 64bit
-Connecting wireless
-I have reset the TCP/IP stack repair options
I fail every ping test except for "DNS Lookup" via Xirrus Wi-Fi.
Below is my IP config:
Windows IP Configuration
Host Name . . . . . . . . . . . . : (redacted: Gateway7811fx)
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : resnet.(redacted: xxx.edu)[code].....
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Jul 9, 2012
I have a Netgear DGN2200 router/modem and have been having this problem for a while now. Every so often the internet will cut out for roughly 30-60 seconds. There doesn't seem to be any pattern to the connection losses and they can happen at any time in the day (overall it seems to occur every hour and a half, although it can vary). When the internet connection is lost, the little "!" triangle appears at the bottom right. I still have wireless access to the router itself. It also occurs on both my wired computer and the wireless computer. On the Netgear itself, the internet light will either flash rapidly green, or sometimes turn red for a short while. The Netgear is plugged via a splitter into the telephone socket. the old neatgear we had did the exact same thing before it finally died and no longer worked at all. Hence why we replaced it with this one. I also rang AOL about the problem, who said that there may be a problem with the line and that we should ring BT about it. We had the line checked and apparently the line was fine and was not the cause of the problem. Things I have tried include changing the router channel and I have tried changing the splitter in case that was faulty. Do you think it could be a DSL problem on AOL's end? It's possible that the drops coincided with a free upgrade they gave us for faster internet, although time-wise I'm not entirely sure.
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