Tagged Questions

A type of network bridge that provides bi-directional data communication via radio frequency channels on hybrid fibre-coaxial (HFC aka CATV) infrastructure.

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0answers
23 views

Router stops giving internet randomly while modem continues to work

My internet provider had installed in my house an Alcatel modem (FTTH). I have a dd-wrt TPLINK router. For months my internet was working perfectly having the modem (bridged mode set by ISP) ...
0
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2answers
24 views

Which cable needed to connect cable modem to DLink router?

Here's the pic of back of my Cable modem ...and this is how the back of new DLink router Could you please inform which cable to use to connect Router to Modem?
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0answers
30 views

Enable SSH access using SNMP in DPC3000

Cisco DPC3000 Docsis 3.0 cable modem, need to enable SSH access using SNMP, I find the MIBs & appropriate OIDs which should enable SSH, but I can't set username and password since they have ...
0
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0answers
91 views

upstream power level causing modem disconnects and reboots

I read an answer for this question from 2012. The reason I ask is that the Comcast connection troubleshooting site states that upstream power levels above 50 dBm will cause disconnects and reboots. ...
2
votes
1answer
724 views

Configure DD-WRT router behind a Cisco cable modem

I have a Linksys WRT54GS router flashed with DD-WRT that I'm trying to get a connection on behind a Cisco DPC3010 cable modem. I can get a connection just fine when I plug my computer in directly ...
3
votes
3answers
482 views

Slow Internet speed when HomePlug combined with router

I'm using HomePlug AV2 600 devices to connect upstairs with downstairs (router is downstairs). A check with iperf shows bandwidth of ~100Mbps, and data transferred on the local network from downstairs ...
0
votes
0answers
65 views

Can't access modem web interface

I have cisco modem with Linux firmware. I can't connect to modem admin interface via ip 192.168.100.1. I can't SSH to it either. I tried to ping it and it is unreachable. I noticed that sometimes this ...
0
votes
1answer
77 views

How to re-enable NAT on Netgear CG3100?

I just accidentally disabled NAT on my CG3100. Now I only have 4 public IPs for all the devices. I really need to re-enable NAT on my CG3100. How do I re-enable NAT on a CG3100?
0
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2answers
373 views

How to disable DHCP on Netgear CG3700EMR-1CMNDS?

I just got a Netgear CG3700EMR-1CMNDS from my ISP. How do I disable its DHCP server? I'm unable to find the setting.
2
votes
1answer
39 views

What is an “Insertion Fault”?

I'm having internet connection issue and after a long and painful phone call the engineer from my ISP (Virgin Media in the UK) has diagnosed that my Modem (Virgin SuperHub 2) is generating 2000 ...
0
votes
1answer
92 views

Is there any reason to purchase a cable modem with a faster speed than your internet connection?

My cable provider allows you to purchase and use your own cable modem, from a list of approved ones. Some of them, e.g. the Motorola SB6141, are rated at a speed much faster than any of the internet ...
0
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0answers
35 views

Zoom 5143j modem disconnects from cox

It seems that we lose connectivity to cox and the zoom modem does not automatically reset itself without us pushing the reset button or disconnecting and re connecting power. We are always able to ...
0
votes
1answer
284 views

Any tools for signal logging Motorola SB6141 on my PC?

For years I had an application someone had written for older Motorola Surfboards. You could run the app in your tray and it would poll the cable modem and log all of the signal data in a csv file ...
0
votes
1answer
61 views

Router setup for cable net connection

Cable connections are now very popular in India. Companies like Meghbela, Allience are providing internet connection through cable. To access internet user need to open a authentication web page from ...
0
votes
0answers
1k views

D'link router DIR 600L A1 default password not working?

I just got D'link router from my brother and have connected it via the ISP line and got the login page. My brother told that when he set the router he got the basic wizard page, set the password and ...
0
votes
1answer
95 views

Network Performance: Coax Splitters, Routers, and Switches

I'm trying to decide between two home network layouts. Here are my goals that I'm trying to achieve:. Network Goals IPv6 Support WAN and LAN speeds capable of handling 2-3 HD video streams (HD ...
1
vote
2answers
1k views

Can MoCA be used behind a wired router?

We have Comcast cable internet, and we want to connect two devices: one WiFi router, and one PC via a wired connection. We have these all set up in the same room and it basically works: wall ...
0
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3answers
2k views

Can I split the ethernet signal from cable modem

Can I connect the Ethernet cable from my cable modem into A wireless router A direct Ethernet connection to a PC Do I need anything special? What kind of splitter?
0
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0answers
236 views

How do I check for a dying cable modem without a known working one?

That pretty much sums it up. Have to rule out a finicky modem as the cause of my bandwidth issues, but I'm not geeky enough (read too cheap) to keep an extra modem in my spare parts box. I'm pretty ...
1
vote
1answer
2k views

No DHCP Lease with a new SB6141 Modem and a Linksys Router

I'm trying to help a friend remotely with an internet connectivity problem. His internet went down this morning and the cable company had him switch to a Motorola Surfboard SB6141 modem from an older ...
3
votes
1answer
147 views

Am I the victim of internet service theft from a cloned modem?

I purchased a modem from someone on craigslist to use for my new cable internet service. The modem appeared to be unused and in brand new condition. However, the sticker on the box with the modem's ...
0
votes
0answers
213 views

Intermittently disconnected from the Internet. Bridged cable modem

After I recently had my cable modem company (Shaw) bridge their cable modem with my router, because their Cisco DPC3825 works so poorly on its own, I occasionally cannot connect to the Internet. I ...
1
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0answers
4k views

WIFI: iPhone/iPad getting much slower bandwidth than laptop

I just got cable internet installed (Comcast). It claims that my down speed should be 25mbit. Over wifi, I get close to that on my laptop, but only about 8 on average with my iPhone/iPad. I'm using ...
1
vote
1answer
803 views

Configuring my cable modem/gateway to hide its country location

My ISP is a cable company which provides the modem/gateway but has fully configurable access. I want to be able to use websites in the U.S. that don't allow me to access them outside of the country ...
0
votes
1answer
292 views

New Cable Modem blocking TOR?

I've been using the TOR browser bundle under Windows for several weeks now to watch British television while in the US. However, today I received a new cable modem/wireless router combo unit from ...
0
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3answers
61 views

Why is my public my IP change based on whether I'm using my modem solo or using my modem through my router?

When I am using my cable modem through my router to my PC, I have one IP address. When I skip my router and go from modem directly to PC, I get another IP address. When I go back through the router ...
0
votes
0answers
909 views

How can I avoid daily reboots of my wireless router?

I recently decided to purchase my own cable modem (ISP decided to charge rent on the unit they provided), but have since had to reboot my wireless router daily. I suspect the address provided by the ...
3
votes
3answers
4k views

How to determine mac address of a modem on Windows 7?

For a validation process I need to know the MAC address of a cable modem. (I do not need to know the MAC address of the network adapter.) The cable modem though is placed somewhere hardly accessible, ...
0
votes
1answer
2k views

Can I Share My Cable Internet Connection Through my ADSL Wireless modem + Router

At first I want to say this question can be found by googling but I cannot find any satisfactory answer. So I am posting it here. I have a ZTE-ZXDSL-531 ADSL Modem. At first I used an ADSL broadband ...
2
votes
1answer
113 views

Is there an equivalent to the WRT54G router for cable modems? [closed]

So my ISP is starting to charge me rent on their (undoubtedly sub-standard) modem. I've never really paid the modem any attention and don't know what the spectrum of options looks like. Is there an ...
1
vote
1answer
1k views

Access Internet on android phone by connecting it to laptop?

My latop is connected to a wired modem for internet. I want to access internet on my android phone. Can i do it by connecting my Android to laptop via usb cable and then enabling tethering. Edit: ...
1
vote
1answer
139 views

Cable modem ping times go to thousands of milliseconds after 10 minutes of use

I have a wireless router (NetGear WNDR4500) which has a wired connection to a cable modem (Thompson DCM275). My connection to the wireless router seems to be working fine and the traceroute and ping ...
0
votes
1answer
2k views

Using Motorola NVG510 as wireless router via connecting it to Motorola SB5101 Cable Modem

I have a comcast cable connection at home. I have a Motorola SB5101U cable modem and Motorola NVG510. What I want to do is connecting the cable modem to the comcast cable and have internet access, and ...
2
votes
0answers
2k views

How to Replace Firmware/Software on Motorola SURFboard SBG6580

I have a Motorola SURFboard SBG6580 Cable Modem/Router combo that was working great until I upgraded my Internet speed with Comcast at which time, they pushed either a firmware or software update that ...
0
votes
2answers
3k views

How to test if a cable modem is functional?

I have an old Motorola Surfboard SB6120 that I bought used and never used. It has some light rust on irrelevant parts mostly around the lan port support bracket and on the cable tuner shield, and it ...
1
vote
1answer
542 views

Attempting to Determine if ISP is Blocking Port 3074

In the last week I have experienced problems getting onto Xbox live. I have a wireless access point / router connected to a cable modem provided by my local ISP. After checking the settings on my ...
0
votes
1answer
112 views

DLINK DIR-685 Rev.A shows ping flood attacks from my modem ip address

DLINK DIR-685 Rev.A shows ping flood attacks from my modem ip address This has happened with ADSL(dont remember model) and now Cable modem(Motorola SB6141). What if anything is wrong? Is this a ...
-1
votes
1answer
2k views

Zoom 5341J No Longer Provides Internet Connection via Router, Works via Direct Connection [closed]

I've been tracking down a confusing problem over the last couple days and I'm hoping someone here might've experienced it before. First, the short version of the problem: My Zoom 5341J modem provides ...
1
vote
1answer
66 views

Cable modem and connectivity issue

I have new cable modem and moved to a new location. I have Cable point, which attaches itself to the cable modem. Every now and then I realize that my cable modem's either upstream or downstream ...
3
votes
3answers
824 views

Is a cable modem registered to a CMTS or the entire ISP?

I am curious if I were to move, do you have to tell your ISP, in this case my cable company, that I am moving? Is the cable modem MAC restricted to a certain CMTS, or could I use any CMTS belonging ...
1
vote
2answers
882 views

Wifi N speed is slow for internet downloads, yet fast locally, and decent in bridge mode. What gives?

I have an e2500 and a macbook pro early 2011 bonded with it at 300 Mbps. My Comcast internet connection is 50+ Mbps via ethernet but only 25-26 Mbps via Wireless-N. When my wireless router is set to ...
0
votes
1answer
102 views

Looking for clues regarding weird wi-fi issue

I've been running a Linksys WRT54G for many years now without issue. We have about 15 devices that are present on our network at various times, including Windows XP, 7, 8, OS X (Mountain Lion), ...
0
votes
1answer
1k views

Setting up of a WIFI router

I recently changed my ISP. So I have 2 modems one is a ADSL2+ Modem and Router with Wifi ( Beetel 450TC1) and other is a cable modem which has 2 RJ45 ports ( No brand mentioned on the device it’s from ...
1
vote
1answer
4k views

Connecting router (SMCWBR14S-3N) to modem (SB6121)

We recently purchased a Motorola SURFboard SB6121 modem and activated it with Comcast. After the technician activated the modem, she instructed me to connect a computer to it and try to go online. ...
2
votes
0answers
713 views

DMZ forwarding on Cisco DPC/EPC2100 Cable Modem to Linksys Router for IP Cameras

I have one of the old Cisco DPC/EPC2100 Cable Modems and wanted to know if anyone has had any luck setting up DMZ on it? Link to modem: http://www.cisco.com/web/consumer/support/modem_DPC2100.html ...
1
vote
2answers
4k views

Forcing a Modem/Router combo to pass it's WAN IP to a dedicated router

I wish to use an ASUS RT-N56U router router with my ISP provided Motorola SBG6580. My goal is to disable the routing capabilities of the modem/router combo and use my Router as the Gateway, DNS, ...
0
votes
2answers
168 views

Planning home network

I'm planning to setup my home network from scratch and want to ask professional opinions or tips. My home is connected to Internet with a cable connection (100 Mb/s). The devices I would like to ...
1
vote
2answers
5k views

Running two wireless networks, with two different DHCP ranges (Virgin Media superhub woes)

I'm trying to create two wireless networks in my house, that would provide the client devices different ip address ranges and DNS settings, depending on which network they connect to. My current ...
17
votes
7answers
10k views

Is it possible for a router to “go bad” with time?

I've been having problems with my internet connection over the past weeks (intermittent disconnections, slow transfers, etc), and my provider keeps telling me that the problem is not on their end. I ...
0
votes
1answer
1k views

wireless network with cable modem and access point

I have a Scientific Atlanta EPC2203 cable modem and a TP-Link TL-WA500G access point. When I connect my computer directly to modem with a CAT5e cable I have internet connection on my laptop (when i ...