The cable-modem tag has no wiki summary.
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1answer
61 views
How to go around a modem's port forwarding incapabilities
This custom cable modem my ISP gave to me does not support forwarding an external port to a different internal port. (For example, I can't forward an incoming connection on port 80 to port 3389 on my ...
2
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2answers
42 views
Should I post my cable modem's MAC addresses when I post it for sale online?
I am selling my old docsis cable modem, and my buyers' frequently asked question is "is it not stolen/blacklisted?"
Will I have problems if I post the modem's MAC addresses on my online ad? I mean ...
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2answers
39 views
Possible for a modem to all of the sudden have degraded speed?
I'm on the phone with Charter (cable company) about how overnight my network speed went from 30 Mbps to 2 Mbps and this support person swears it's because my modem doesn't support 30 Mbps.
I say ...
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1answer
58 views
Could using the wrong adapter damage a cable modem?
The cable technician installed my cable modem today, but brought the wrong adapter. He managed to force it into the modem, but I looked at the ratings and the modem says 12V 1.5A while the adapter ...
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2answers
53 views
Distributing Cable internet over WiFi
I have a cable modem and I connect it to my laptop via the Ethernet cable. If I connect that ethernet wire to the LAN port in the WiFi modem, will I be able to surf internet on my laptop by connecting ...
4
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1answer
57 views
What makes for a good cable modem?
I'm tired of renting my cable modem and am wondering how to tell them apart.
Some are 1/2 the price of others yet they all seem the same. What are the criteria one should look for when purchasing a ...
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1answer
98 views
What does the Comcast/Xfinity activation CD actually do? [closed]
Just ordered Xfinity internet service, and requested a self-install. I'm wondering what the activation CD actually does, and if I actually needed to wait several days to get the CD. Does it do a modem ...
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0answers
44 views
Getting Comcast internet, Do any DOCSIS modems support MoCA
So I like the idea of running a MoCA network, infact I had been doing just that with FIOS, but now I have to switch to comcast.
I could continue to use two moca bridges with the modem, but I would ...
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3answers
210 views
How do I use a 2Wire 2701HG-B as a router only?
I recently switched from DSL to cable Internet. I have a 2Wire 2701HG-B modem/wireless router that I would like to use as just a wireless router.
I tried hooking up the cable modem directly to the ...
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0answers
41 views
Bizarre modem re-setting issue
There is a bizarre problem with my home wireless internet. I have Broadband service from Time Warner (TW), with an Arris modem (TW) and D-link dir-615 wireless router (own).
The Modem was re-setting ...
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2answers
93 views
Is it possible to wake-on-lan computer connected to cable modem over Internet? [closed]
Possible Duplicate:
Can I send a Wake On LAN packet without broadcasting?
I am able to wake my computer over internet, because my computer is connected to a router, and router is connected ...
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1answer
197 views
Meaning of RCA DCM425 Cable Modem Diagnostic Statistics
My home internet connection is provided via a DOCSIS 2.0 complaint RCA/Thomson DCM425 cable modem. As far as I can tell the DCM425 is an un-managed device, but it does provide a web interface for ...
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0answers
43 views
I want to be able to remote into my home computer but comcast changes the IP address every few days. How can I figure out what my IP address is? [closed]
Possible Duplicate:
How can I configure my ADSL modem and Home PC to be able to access from external?
How to remote my home computer with normal remote desktop connection?
One thing I'm ...
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2answers
295 views
Should I buy new cable modem for suddenly slow internet speed?
That's what Charter asked me to do. Until last week, I didn't have any problem with my Zoom cable modem. But last week, my 20Mbps cable modem was checked to 1Mbps according speedtest.net. So I ...
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1answer
94 views
2WIRE router and cable modem
We just switched to cable internet and we had to get another router (or so the technician said), but I talked to a friend of mine who said that our old 2WIRE DSL modem/router should work with the new ...
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1answer
218 views
Linux (Mint) getting a cable internet connection
I recently moved house and had my DSL connection downgraded to a cable connection. Anyway my Linux laptop is configured for a DSL connection. When I slip in the cat5 cable and try to connect to the ...
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1answer
43 views
How To Connect Internet Modem To 2 LAN Devices? [closed]
I have unresolved problem with router and modem, so can i do this with HUB or switch but not with router?
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4answers
263 views
Is it my cable modem or my cable company?
I have a Motorola SB6120 cable modem that I bought last November or December. It's been working great since I got it. I have the cable modem connected to an APC surge protector and turn the surge ...
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2answers
96 views
Can I connect a wireless access point to a bridged-mode cable modem?
My wireless router is beginning to show signs of dying -- it restarts itself every once in a while. Needless to say, it needs to be replaced. Coincidentally, one of my friend's neighbour is having a ...
4
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1answer
107 views
Wireless internet very slow when HD TV channel is on
I have cable and internet service with Comcast. I'm experiencing really slow speeds when an HD channel is on on my TV. I thought this may have to do with my splitter, but I found that this happens ...
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2answers
2k views
Is there a catch with Comcast replacing my Toshiba PCX2500 cablemodem with a Ubee DDM3513? [closed]
Comcast recently sent me a brand spanking new cablemodem, a Ubee DDM3513, to replace my Toshiba PCX2500. I haven't set it up yet, since it occurs to me that this is Comcast we're talking about and ...
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1answer
141 views
Can Electric Surge Go Through Modem And Fry Laptop?
I have cable internet connection and cable connects to modem. From modem there is a LAN cable connecting to my laptop. Can electric surge reach my laptop?
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1answer
288 views
Thomson THG520 modem does not give ip address on both links
My ISP gave me a Thomson THG520 modem when I subscribed to their service. It has 2 links and USB and an Ethernet link. It worked fine with our 2 computers but for several weeks or so I experiencing ...
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1answer
213 views
Limiting bandwith on an Windows 7 machine
I need to limit the bandwidth on my Windows 7 x64 machine.
In the past (on XP) I've been able to use NetLimiter for similar tasks. However for some reason I can't get it to work anymore. For lower ...
1
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1answer
338 views
Scientific Atlanta 2100 cable modem lights do not come on
Just got a cable modem, which I am trying to "install".
I connected all the cables and the power, then all the lights came on and stayed on, no blinking. After about 6 hours with no change, I tried ...
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1answer
239 views
DHCP not responding from laptop or router, but works on directly plugged PC?
I'm at my sister in law's place in Singapore. I'm not from Singapore but am here for a few months. She has some sort of cable modem made by motorolla (SB5101 Surfboard). I think it goes, through ...
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2answers
607 views
Why would my cable internet cut out but cable tv still works?
A friend of mine asked me this and I wasn't able to come up with a good answer. Basically, you could be watching Comcast television in one room but the internet router is in another room. TV is fine ...
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3answers
719 views
Can I share my cable internet connection through my ADSL wireless router?
Over the xmas period I am at my in-laws. They have Virgin Broadband (cable) and have a basic modem / router that is plugged directly into their computer using an ethernet cable.
My wife and I arrived ...
3
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3answers
238 views
premium cable Internet is supposed to be multi-MB per sec, right? I never break 800kb/sec
Premium cable Internet is supposed to provide multi-megabyte per second downloads, right? Meaning, I should be able to download a 20MB file in a second? When I download large video files, say from ...
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2answers
130 views
ISP knows if modem is communicating with router
I was speaking with tech support for my cable internet provider troubleshooting a faulty router. They knew, somehow, if and when my modem was communicating with my router. Just wondering how is this ...
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1answer
159 views
My cable modem won't communicate with my iMac but will with my other box
The other day I was forced by the aftermath of a failed software installation to reinstall Windows 7on my iMac. All went well except that I am unable to use the internet on that box now because for ...
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1answer
266 views
Should I buy a new cable modem?
My cable modem is about five years old, a Linksys BEFCMU10. Is there any performance advantage to be gained by getting a newer one? (I'm thinking maybe a Motorola SB6120.)
I'm currently having ...
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1answer
368 views
DOCSIS 3.0 boot file generator?
We have been using docsis project ( http://docsis.sourceforge.net/ ) for generating DOCSIS cablemodems compliant bootfiles, from templates, for docsis 1.0 and 1.1 devices, now we want to move one of ...
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2answers
551 views
Can I use my WRT54G instead of my ISP's cable modem?
My ISP has provided a crappy Thomson cable modem with 4 LAN ports and wifi, which constantly crashes and reboots itself. I am going to ask for a replacement, but here is my question:
--> I have a ...
2
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1answer
79 views
Connecting home LAN to cable internet
I have a small home LAN. We currently use DSL but are moving to an area where cable internet is preferred for speed reasons (3Mbit upload vs. 768kbit).
I'm fairly savvy w.r.t. networking, but I have ...
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2answers
326 views
Wireless Connection not maxed out but “slow”
I just got a 20MBit cable connection at home and tried to measure the bandwidth from this with my laptop. After a few tries (5), I could see I was getting 14/1 Mbps (down/up) speeds from speedtest.net
...
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7answers
1k views
Why is it so hard to connect with a cable modem and router?
I've gone through various combinations of cable modems, routers, computers, and apartments in my life, and one thing has always puzzled me. Why is it so difficult to get these things to connect to the ...
8
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1answer
810 views
How to connect a wifi router to a cable modem router?
Here's the thing: I have a cable modem router (Thomson TCW710) with wifi-g that I rent from my cable company. I would like to use a wireless-n router (D-Link DIR-655, that I received for free) with it ...
4
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3answers
752 views
Home network with two isolated separate subnets, running on cablemodem/router and WRT-router
I have a new connection with a nice new router/cable-modem. I'd like to setup it up optimally and needs some pointers. I am a complete n00b when it comes to routing.
I want to end up with two ...
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2answers
160 views
New to networking had to reinstall xp what does blank in Default Gateway mean?
I have reinstalled windows xp and posted about not being able to connect to the Interenet. I did go and ensure all drivers are there and now when I type ipconfig/all
I get physical address, dhcp ...
2
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1answer
96 views
Offloading Cable Modem operations to Router
I may be crazy here, but I seem to recall a conversation in the past stating that it was possible to offload some of the operations taken by one's cable modem to one's router.
The logic was that ...
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6answers
1k views
Why is my router not routing?
Starting a week and half ago my router stopped working with my cable modem. I went to sleep with it working and woke up with it not. I swapped in another router and am still having issues; I was ...
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3answers
373 views
Cablemodem frequent connection loss
I have a Linksys BEFCMU10 cablemodem and a WRT54GL router with Tomato 1.27 firmware on Cox cable. My question is this: I get what seems to be random disconnects from the internet, where the cable ...
3
votes
3answers
336 views
Why can I no longer access a particular website that I have been visiting for years without issue?
There is a private forum site that I have accessed without issue for a long time. As of about 2 weeks ago, without warning, I suddenly cannot access the site through any browser.
My first assumption ...
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3answers
1k views
Being able to access cable modem's web interface
Updated
I've got a Motorola SBG900 cable modem sitting in front of a Linksys WRT54G running DD-WRT. The DHCP server is running on the Linksys router not the modem.
I can access the DD-WRT web GUI ...
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2answers
7k views
How do I forward ports on a Comcast SMC 8014 w/ a static IP? (Doesn't seem to work?)
I'm trying to set up port forwarding with my Comcast cable modem, an SMC 8014. Normally this is pretty straightforward (give a port range, tell it to forward to a LAN IP) but for some reason it ...
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2answers
496 views
Planning to purchase a modem to use with my Comcast connection… but what should I know before that?
I am planning to purchase an RCA DCM-425 modem to avoid getting those monthly $5 rental charges. This one seemed to be out of stock on Amazon so I was wondering if there are any alternate models that ...
0
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2answers
120 views
Can no longer reach DHCP server
I've read some of the other DHCP questions here, but my problem is a little different. I have a home laptop that has been working fine for ages. I brought my work laptop home at the weekend to finish ...
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3answers
752 views
Why would a cable modem work in one location and not another?
Up until last Thursday, my D-Link (don't know model) cable modem at home was working just fine. No issues besides needing a power cycle every once in awhile. Since Thursday, can no longer get online.
...
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3answers
724 views
Should I Replace My Old Wired Cable Router?
I have a LinkSys BEFSR41 wired cable-router (version 1) that I purchased back in 1998. Yes, its about 12 years old.
It works, there is nothing physically wrong with it but I got to wondering - ...
