Yes, you can move your Xfinity modem to another room, but the move works only if the new location has a coaxial cable outlet

Your Xfinity modem connects to the internet through a coaxial cable — the same type that carries cable TV. If the room you want to move to has an active coaxial outlet, you can unplug the modem from its current location, carry it to the new room, plug it into that outlet, and it will work. The modem does not need to be in any particular spot; it just needs to be plugged into a live coaxial line.

If the new room has no coaxial outlet, you have two options: run a coaxial cable from an existing outlet to the new location, or use a wireless extender or mesh system to reach the room with WiFi instead of moving the modem itself. Moving the modem is usually simpler if an outlet exists, because you avoid running new cable through walls or across floors.

Key Takeaways

  • Your Xfinity modem will work in any room that has an active coaxial cable outlet connected to your service line.
  • Moving the modem takes only a few minutes: unplug it, carry it to the new location, plug it into the coaxial outlet, and wait for the lights to stabilize.
  • If the new room has no coaxial outlet, you can hire a technician to run cable, or use a WiFi extender to reach the room wirelessly instead.
  • Unplugging and moving the modem will not harm it or your service, and you do not need to call Xfinity to notify them of the move.

How to move the modem safely

Unplug the power cable from the back of the modem first. Then unscrew the coaxial cable — the thick cable with a threaded connector — by turning it counterclockwise by hand. You do not need tools. Carry the modem to the new room and plug the coaxial cable into the outlet there, turning it clockwise until it is snug but not forced.

Plug the power cable back in and wait two to three minutes for the modem to boot up. You will see the lights on the front cycle through different colors. When the internet light (usually labeled "Online" or shown as a globe icon) turns solid green or white, the modem is ready. Your WiFi network will reappear on your devices within a minute or two after that.

If the internet light stays red or does not light up after five minutes, the coaxial outlet in the new room may not be active, or the cable may not be screwed in tightly enough. Unscrew it, check that the threads are clean, and screw it back in firmly. If the light still does not come on, that outlet is not connected to your service.

Finding a coaxial outlet in your home

Coaxial outlets look like small round ports with a threaded center hole. They are usually mounted on walls or baseboards and are often labeled with a cable TV icon or the word "Cable". If your home has cable TV service, outlets are typically in the living room, bedroom, and sometimes the kitchen or den — the same rooms where you might have had a cable box or TV connected.

Not every outlet in your home is active. An outlet may be installed but not connected to the service line running into your house. The only way to know for certain is to try plugging the modem in and waiting for the lights to stabilize. If you are unsure which outlets exist or which ones are live, you can walk through your home and look for the small round ports, or contact Xfinity to ask which outlets are active on your account.

What happens if your new room has no coaxial outlet

If the room you want to use has no coaxial outlet, or the outlet is not active, you have two main paths. The first is to hire an Xfinity technician to run a coaxial cable from an active outlet to the new room. This usually costs between $100 and $200 depending on the distance and difficulty, and the technician will drill through walls or run cable along baseboards as needed. You can request this service through the Xfinity website or by calling their support line.

The second path is to keep the modem where it is and use a WiFi extender or mesh system to reach the new room wirelessly. An extender sits between the modem and your devices, picks up the WiFi signal, and rebroadcasts it to cover a larger area. Mesh systems work similarly but use multiple units placed around your home. This approach costs less upfront (extenders start around $30 to $50, mesh systems around $100 to $300) and requires no installation, but the WiFi signal may be slower in the distant room than it would be if the modem were closer.

Coaxial cable length and signal quality

If you do run a coaxial cable to a new location, the length of the cable matters. Coaxial cable loses signal strength over distance, but the loss is gradual. A cable run of 50 feet or less will have no noticeable effect on your internet speed. Runs longer than 100 feet may begin to degrade signal quality, especially if the cable is old or of lower quality.

If a technician runs cable for you, they will use standard-grade coaxial cable, which is sufficient for most homes. If you are running cable yourself (which is possible but not recommended unless you are experienced), use RG-6 cable rather than older RG-59, as RG-6 has better shielding and handles longer runs better. Keep the cable away from electrical wiring and do not coil it tightly, as both can introduce interference.

Will moving the modem affect your service or bill

Moving the modem will not change your bill, interrupt your service, or require you to contact Xfinity. The modem is tied to your account by its serial number, not by its physical location. You can move it as many times as you want without notifying anyone. Your internet speed and service will be the same in the new room as they were in the old one, as long as the coaxial outlet is active and the cable is connected properly.

The only time you might need to contact Xfinity is if the new outlet is not active and you want them to set up it, or if you want to request a technician to run new cable. Otherwise, the move is entirely within your control.

Frequently Asked Questions

Do I need to restart my modem after moving it?

No. The modem will restart itself automatically when you plug it back in. Just wait for the lights to stabilize before using your internet. If you want to restart it manually for any reason, unplug the power cable for 30 seconds, then plug it back in.

Will my WiFi password change if I move the modem?

No. Your WiFi network name and password stay the same. Your devices will reconnect automatically or will ask you to enter the password once, depending on the device. You do not need to change any settings on your phone, computer, or other devices.

What if I move the modem but the internet light stays red?

The outlet in the new room is likely not active. Check that the coaxial cable is screwed in tightly, wait another minute, and check again. If the light is still red, that outlet is not connected to your service line. Move the modem back to its original location or try a different outlet, or contact Xfinity to ask which outlets are active.

Can I use an extension cord to move the modem farther away?

Yes, you can use a standard power extension cord to plug in the modem if the outlet is not close enough. The modem draws very little power, so a regular extension cord is safe. However, the coaxial cable cannot be extended with a regular extension cord — it must be a coaxial cable connector. If you need to extend the coaxial connection, use a coaxial coupler (a small threaded connector available at hardware stores for a few dollars) to join two coaxial cables together.

Will moving the modem to a different room change my internet speed?

No. Your internet speed is determined by your service plan and the quality of the coaxial line, not by which room the modem is in. The modem will deliver the same speed in any room, as long as the coaxial outlet is active and properly connected.