Questions tagged [modem]

A device for sending a digital signal down an analog line

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Cable modem speed limitations

I have been doing some research on different modems and I am getting quite confused about some of the speed numbers in the product specifications. Below are some examples from Motorola modems. If you ...
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does comcast need to provision my 3rd party modem for me to use it with my 3rd party router

ive posted another post related to this problem but im asking a very simple q here. Ive had 3rd party modem and my own router working fine until yesterday. could it be something comcast did on their ...
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My whole Wi-Fi network crashed and nothing works. Is the issue the cable modem or my wireless router?

The cable modem was knocked off the desk it was on and suddenly nothing works! I own my Motorola DOCSIS 3.0 modem, it worked fine with Comcast. I had it connected to my TP-Link router (running DD-WRT)...
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Port forwarding is not working on ZTE H267A V1.0

I am trying to set up an Ubuntu server at my home. I have a static public ip which is 213.xxx.xxx.xxx I installed the Ubuntu Server to the computer that I want it to become the server. It is connected ...
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Can 2 modems connected to the same router interfere with each other if their web access interface are the same IP address?

Here is information about the network: I have 2 WAN connections to the same ISP which they provided 2 modems for and configured them to be in bridge mode. My MDF router (pfSense) connects both of ...
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How to remotely connect to a router which is behind an ISP provided modem?

I have ISP/Broadband Modem which provides internet. On its LAN port - I connected another Asus RT-AX88U router. Now on that Asus router, I enabled remote managing in order to connect to that router ...
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Concatenated SMS leads to way longer sending time using AT commands

What is is the culprit here? When I am sending Concatenated SMS using a TP-UDH header with my PDU message it takes exponentially the size and parts of the message to arrive compared to the same ...
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The ISP keeps changing my modem DNS address

The ISP of mine in (Iran) keeps changing my DNS address on a daily basis, my modem goes on/off and then DNS changed to some other address: 5.200.200.200 217.218.127.127 How can I set the Google DNS ...
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Enabling SMS alerts from Netgear LB1120 LTE modem

I'm using a Netgear LB1120 LTE modem as my backup WAN. The cellular plan for its SIM has a monthly data cap, so I'd like to use the modem's SMS alerting feature to let me know if it nears its data cap ...
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Using a consumer grade router alongside an ISP provided modem router [closed]

I find myself in a position where my current ISP is unable to provide high speed internet. This situation will likely change in time. The ISP has provided a very basic router with a built in modem ...
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Is this the right setup so that everyone can talk to each other? (In same network LAN)

I want to make sure if my setup will be functional. Let me describe the diagram I made. The HomeHub is my ISP modem hooked to Fiber and cannot be replaced. There's an advanced option where I can enter ...
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Can I use a MoCA Adapter to bridge a connection from a 5G modem to a DOCSIS cable modem router

My house only supports DOCSIS (coaxial Cable) internet. My idea is to set up a 5G Modem with a MoCA adapter to a DOCSIS Router as such: 5G Modem|------>MoCA|------>WAN/DOCSIS Modem|------>|...
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Connect router to a fiber optic modem

I have a modem with optical fiber technology with WI-FI. Straight cable connection with two PC is stable and fast (around 450 Mbits/sec), but every WI-FI driven connection is extremely slow and ...
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Ethernet Stop Flashing Lights

Is there a way to prevent flashing lights, or turn off the lights on ethernet cable port/modem? is there a setting on Windows or Macs ? Nothing is wrong, I just have good network activity. I am just ...
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How to connect to a server connected on a modem through a router?

I have, I believe, a very simple setup that schematically looks like that: ┌─────┐ ┌─────┤ NAS │ │ └─────┘ │ 192.168.1.2 ┌───┴───┐ │ Modem │ └───┬───┘ │ ┌──────┐ ...
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Port forwarding safely or WAN port alternative?

I am trying to host a small server on my home network and I am trying to come up with a convincing solution, security-wise. First of all, my router has a DSL connection to the ISP, but it also has a ...
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Is there a way to inject a fake udev device?

I have a program that talks to a specific serial device. The program tries to detect the device using udev (it checks for a specific udev variable), then it opens the device and starts communication. ...
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How can I connect two Huawei routers wirelessly to expand the WiFi Range

I have a primary Huawei EG8247H5 router supplied by my ISP connected to an Optical Fiber cable. I have another spare Huawei ONT router HG8245H and I want to connect both wirelessly in order to expand ...
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Port 443 SSL issue with Telstra Arcadyan modem only

I am having difficulty connecting to an endpoint with SSL via a VPN (required) using my modem. When connected to the modem I get the following error, whereas if I switch over to tethering on 4G it ...
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One modem, 3 routers (3 access points) no connection between the routers

So, before explaining this is the situation drawn out: ------- Router_1 | Modem --- Router_2 | ------- Router_3 Three routers on 3 seperate floors of the building all connected to the modem (...
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convert cable modem to connect to a phone jack?

I have an older cable modem and router. They work. I moved to a new place and the internet service is through the phone line. Is there any way, an adapter or something, that will allow me to connect ...
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NGFF/m.2 WWAN card compatibility with separate sim card slot

I have a laptop with a slot for an m.2 LTE modem and a separate sim card slot. There is a specific modem that is officially supported by the laptops vendor, but it costs more than twice as much as a ...
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How to stop modem "stealing" local IP from router?

I have a NetGear C6300 modem (TCP/IP 192.168.0.1) and NetGear R6700AX Wifi router(TCP/IP 192.168.1.1) attached to it with an ethernet cable. Every time I connect a device to the modem, it will get a ...
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Unable to access working Netgear CM1100 cable modem login page

I have a Netgear CM1100 modem with local IP of 192.168.100.1. I have tried Netgear R6230 router with IP of 192.168.1.1. I am able to connect to the modem login. I also tried Netgear R6700 router with ...
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Why does double-NAT networking intercommunication works only in one direction?

So I set up a simple network: first comes the modem, then comes the router and behind the router my end devices. I can access the modem network from my local area network behind the router, but when I ...
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Convert ADSL modem into access point for hostel lan port

I live in a hostel where a lan port is given in every room. I have a DLink 2730u ADSL modem that I'm trying to convert into an access point. I've seen many posts on the internet on how to do so. ...
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bridge mode : pingable by wifi but not wired?

I have a motorola mg7550 modem/router, and I want to use it as a modem only. After a factory reset, I enable bridge mode and then after a reboot, the device can only be pinged by devices logged in ...
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Only 1 direct connection available at a time on Verizon Modem

I have a Verizon ONT running through an 8-port switch, connecting it to all the ethernet ports in the apartment including the router. The router works fine until I plug my computer into the ethernet ...
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50% of Websites Often Won't Load, Bizarre Workaround - Windows 10

my dears. Thanks one and all for any suggestions. How would you like to start every day spending 10 minutes to 2 hours trying to get your internet to work? Fun stuff, I'm tellin' ya! I have a cable ...
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modem set with class b ip but devices can't ping eachother

I'm mainly a programmer but I've got quite interested in networking lately and I've started to tinker with my home network a bit. I was trying to set my spare modem to test changes before rolling them ...
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I can't access a local web app from the outside. I have configured the nat but It doesn't work

I want to access from outside my local web app hosted on a raspberry pi. To do that, I have configured the NAT so: The Web app IP local address is: 192.168.1.20:4444 But when I search on internet, my ...
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Is this setup possible in any way? (VLANs with MF286 ISP LTE Modem/Router and managed switch)

Network Layout I would like to change my network as shown in the picture and i am not sure if it will work. Thought i would ask some experts befor i break my network... The provided LTE Modem has ...
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How can I login to a PC that only has a dial-up modem from home with no voice service?

This is mostly curiosity but I would use this if the home office is down and a customer needs support. We have some sites that still don't have an Internet connection - only dial-up modems. If I need ...
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How to use a Wireless ADSL modem Router as a Access Point?

I have two modes similar this: I live on the first floor of an apartment. Also one of the mentioned modem is inside my apartment (connected to the ADSL port) and has internet as well. I connect to it ...
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Is there a web interface for my BT ADSL modem (upstream of my router) - if so, how do I reach it?

My ASUS router's IP address is 192.168.1.1, I can view that fine and log in to look at logs and change settings etc etc. We have one of the small white BT modem boxes between the phone line coming ...
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2 answers
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Ethernet doesn't have a valid IP configuration

I got a new modem and router, same manufacturer, did my research spoke with my isp and got my modem activated and configured. My entire setup is hardwired. coax from pole to modem, cat5 from modem ...
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Huawei HS8145V5 ONT Laggy and Slow

I have bought a HS8145V5 router for my new Optical Fiber Setup (PON), before that I used to have a VDSL router Now the problem is, this new huawei router that I bought is x6 in price in comparison to ...
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1 answer
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Modem recycles when power goes out although it's on a UPS

I have a UPS with my desktop, server, router and modem all on the backup side but when the power flickers, the fios modem still powers off. It is the only thing that powers off. Anyone know why or ...
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unable to establish TCP connection with server (Java)

I have been trying to connect to my own Java TCP application, which is running on a rented server with static public IP. Scenarios that work: server runs host app, and servers from https://check-host....
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Asus wifi6 router is not connecting to fibre modem

I bought an Asus zen XD4 Mini Wi-Fi 6 router. I have a local fibre connection. The ISP gave me a nameless cheap gpon unit which works as the modem and I connect my router to it. This has been like ...
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1 answer
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Unable to connect to device which is on the same router in network using external IP and external port

I am not sure if this is the right place to ask this question but here goes. I have a modem with ONR fibre connected to the internet. It has 4 Lan ports. 1, 2, 3, 4. I have 1 PC and 3 routers ...
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Internet speed increased by ISP but still getting previous speeds

I recently purchased a replacement cable modem for my home internet. I was ready to upgrade my Cox cable internet from their 150 plan to their 500 plan. Old cable modem was an older Arris Surfboard ...
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Modem with router as access point: slow WiFi speeds (ethernet speeds correct)

I have a router/modem from my isp, however its WiFi has a very small range, in our study we get about 20Mbps, and we have a (theoretical) 1Gbps. I got a TP-link AX5400. Unfortunately, it turned out ...
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How can I login to the Huawei router of "ClassicTech ISP"?

Basically I have a Huawei HG8245 router provided by a local ISP "ClassicTech" and the ISP has blocked the access to the router setup page ie. 192.168.254.254(Gateway) in LAN side. But the ...
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Replacing ISP-supplied modem

Is it possible to replace my ISP-supplied modem with an alternative? My Canadian ISP (Virgin) supplied a Sagemcom Fast 5250 modem/router. I currently use this as a modem only; the WiFi is disabled and ...
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Cannot reach internet when connected directly to modem

I am currently attempting to diagnose bandwidth issues in my home network setup. I am seeing some strange throughput behavior and thus am trying to remove my WLAN router from the equation to try to ...
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Modem redirecting HTTP sites to itself (192.168.1.1)

I have a Huawei E8372h-608 WiFi modem. I'm having a strange problem where whenever I try to access a site via HTTP I am redirected to the modem at 192.168.1.1. I can load sites via HTTPS just fine but ...
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An external USB fax modem (unknown brand) is not working in Windows 10

I installed 56k USB fax modem in Windows 10 successfully. The problem is when I restart the computer I need to unplug then plug again USB fax modem to work. I had disabled power saving for USB.
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Asus RT-N12E_B1 router: "The WAN IP is not the external IP. External IP-based services will not work."

On an Asus RT-N12E_B1 router, in the menu, I get the hint: The WAN IP is not the external IP. External IP-based services will not work. --> Change now The router gets the internet from an Inteno ...
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Windows 10 mobile broadband turned off

Since Windows 10 version 1904 I'm not able to use my mobile broadband modem, I'm using SIM7912G module and it works fine with Windows 10 prior 1904, however, in newer releases it seems that mobile ...

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