How Can I Boost Modem Signal at Home – Best Ways

Restarting your modem, avoiding interferences, ensuring properly configured cables, purchasing a new modem, and having your ISP resolve modem signal issues are the best ways to boost modem signal at home.

If you have cable Internet access, your ISP most likely provided you with a modem when they set up your service. The cable or telephone company is responsible for signal strength. Some modems feature built-in diagnostics tests or connection status menus that display the various signal qualities; if they’re low, the modem, wiring, or signal being provided is deteriorating. This article aims to examine how I can boost modem signal at home with that in mind.

This signal is very much set on most customer premises equipment (CPE), and there’s usually no way to modify it manually. The latter is different from ways to improve mobile signal strength at home. You can ensure that the wires connecting your modem to the telco, including the DSL filter/signal splitter, are in good working order and do not come into contact with any inductive loads (AC motors, appliances). Because modem signals are analog, electrical and radio frequency interference (EMI/RFI) will decrease the usable signal, resulting in slower data transmission.

While we all prefer to focus on the router as the source of potential issues, the modem is frequently blamed. You’ll have to peek into the modem to discover what’s going on in most cases. You may learn a lot about your modem and connection by accessing the remote web server hidden inside your modem and reading the diagnostic pages, such as general status, signal strength, and event history, via the system log. With that information, you may say, “Okay, it’s not the modem or signal strength, so I’ll concentrate on the router and other network aspects.”

What modem signals are considered bad?

A diagnostics web page on most modems can be used to view cable signal details (signal strength, upstream/downstream power levels, SNR, and so on). This information can be pretty helpful in resolving frequent connection problems.

The values below can be used as a guideline for what constitutes “bad signal levels.” After that, you may need to improve those lousy modem signals, which is comparable to how to boost cell signals at home for free or for a fee.

boost modem signal at home

i) Downstream Power (-15dBmV to +15dBmV) 

This is a measurement of the cable modem’s signal strength. Most modems have a -15dB to +15dB rating, but it’s optimal if it’s between +8dB and -8dB. Any less or more than that, and you can have a problem with quality. If you need to raise and clean up your signal level, you can remove splitters from the line. Instead of using a splitter, you can use a tap (directional coupler) to receive a cleaner signal to the cable modem.

ii) Upstream Power / Modulation (35dBmV to 55dBmV) 

This is the signal strength of the cable modem’s signal. In general, the lower the number, the better. More than 53 dB will almost certainly cause problems, and more than 57 dB will almost certainly prevent you from connecting. Between 40 and 50 decibels is ideal.

If you go below 38, you can start losing packets (especially if you have much noise on the line). The modem will most likely drop the connection and resync if you reach 58. In most regions, low levels (below 35dBmV) get too close to the noise floors, producing problems.

iii) Signal/Noise Ratio (SNR, >30dB)

This is a measurement of the signal’s clarity. SNR is optimal when it exceeds 30. (The higher, the better, it might work well with as low as 25 at times). Connections will be dropped, packets will be lost, transfers will be sluggish, and so on if the number is less than 25.

How can I boost modem signal at home- Best Ways?

1) Try a modem restart

When you’re having trouble with your internet, you should first reset your modem. It’s speedy, simple, and effective. This frequently solves the issue. The procedure for restarting a modem, router, or gateway (modem/router combo equipment) is the same:

  • Step 1: Unplug the power wire from the rear of the equipment.
  • Step 2: Take a 60-second break.
  • Step 3: Reconnect the power cable.
  • Step 4: Wait for the equipment to restart.

2) Try to avoid interference

If you have gadgets that rely on wireless signals, your modem will be up against many obstacles. The stronger the router’s signal, the better the connection to your linked devices. Microwaves, cordless telephones, and baby monitors, among other appliances in your home or workplace, might interfere with the signal, affecting internet speeds and the home network connection.

 It’s critical to keep your modem away from appliances to guarantee you get an excellent WiFi signal in your home. Similarly, if you want better phone coverage at home, you should make calls from regions with no cellular interference. You’ll get better reception without spending money on a cell phone signal booster for rural areas or anywhere else.

3) Check for damaged or poorly configured cables

When fully inserted, coaxial cables should produce an audible click, and Ethernet cables should make an audible click. A loose cable can still pass signal, although, in poor quality, loose cabling is a common cause of intermittent internet problems. However, additional stress, such as when the cable moves slightly, may cause the signal to go out entirely.

When an active coaxial line in your home isn’t linked to any equipment, it works as an antenna, causing radio interference in your home network. If you hire a professional installer, always request that any open coaxial ports be closed off.

4) Make sure your modem has the latest firmware

To work correctly with your ISP, your modem requires regular firmware updates. Your internet may occasionally disconnect due to malfunctions or registration issues if your device runs on old firmware. Although your ISP should update your modem automatically, it’s still a good idea to double-check that the most recent firmware is installed. You may check for modem updates by using a web browser to log in to each device’s interface.

5) Get a new modem

If you’ve owned your modem for several years, there’s no doubt that it’s outdated. Make sure you’re making the most of your bandwidth to improve your internet speed. As a result, obtaining a current modem with the most up-to-date internet technology is necessary.  If the modem is rented, it will be replaced. If you own the modem, you’ll need to buy a new one, find a compatible used one, or rent one from your cable company.

6) Check for modem issues with your ISP

If your modem cannot interact correctly with your ISP, either due to an update or a change incompatibility, you will begin to experience a variety of internet issues. If anything isn’t right with the registration, the modem or ISP may try to authenticate each other incessantly, producing slowdowns. If you provide your own modem, you’re more likely to run into these issues. To diagnose and resolve these difficulties, you must contact your ISP.

Bottom line

The various signal qualities are displayed in built-in diagnostics tests or connection status menus on modems, and if they’re low, the modem, wiring, or signal being given is degrading. As a result, you can only deal with one of them: your internal wiring. The cable company is in charge of the rest. This may necessitate a technician visiting your home to test the utility pole tap, check signal levels, and do advanced connectivity checks.

Paula Beaton

Paula Beaton