--- title: The Internet Is Fine but the Wi-Fi Is Slow: How to Tell url: https://hdiss.net/guides/internet-fine-but-wifi-slow/ business: High Desert Internet Services (HDISS) phone: 775-575-9593, 775-391-5660 email: info@hdiss.net mailing_address: Home base: 200 S Virginia St, Suite 760, Reno NV 89501 (dispatch office, not a walk-in store). Mail: Billing Dept., PO Box 11353, Reno NV 89510 hours: Office open 9:00 AM to 5:00 PM, seven days a week. Network watched around the clock. type: Fixed wireless internet service provider (homes and small businesses), web hosting, customer email, domain registration service_area: Northern Nevada - Washoe, Lyon, Storey, Churchill and Douglas counties and Carson City; availability is checked address by address (line of sight to a tower) plans: Bronze $50/mo up to 500 Mbps down, up to 200 Mbps up; Silver $75/mo up to 800 down, up to 200 up; Gold $99/mo up to 1 Gig down, up to 200 up; ask about the up to 1 Gig / 1 Gig ultra-low-latency service no_online_purchase: true (check your address or call; existing customers pay at https://www2.fernley.net/hdiss/onlinepay/paymentform.cfm) since: 2002 --- - [Home](https://hdiss.net/) - [Guides](https://hdiss.net/guides/) - The internet is fine but the Wi-Fi is slow: how to tell # The internet is fine but the Wi-Fi is slow: how to tell Plug one computer into the router with a cable and test it. If the wired result is close to your plan's up-to speed and the Wi-Fi result is far lower, the line is fine and the problem is inside your house. A Wi-Fi router on a shelf. Stock photo: Adobe Stock. [Photo credits](https://hdiss.net/photo-credits/) On this page - [How do you tell a line problem from a Wi-Fi problem?](#how-do-you-tell-a-line-problem-from-a-wi-fi-prob) - [Why does Wi-Fi fall off so much inside a house?](#why-does-wi-fi-fall-off-so-much-inside-a-house) - [What else slows Wi-Fi without touching the line?](#what-else-slows-wi-fi-without-touching-the-line) - [What fixes work, in order of effort?](#what-fixes-work-in-order-of-effort) - [When is it the line after all?](#when-is-it-the-line-after-all) People call about slow internet when the outside line is working and the last thirty feet of radio inside the house is the weak link. A cable test takes two minutes and sorts the two cases. Here is how to run it and what to do with the answer. ## Takeaways - Test once by cable and once by Wi-Fi in the same room, back to back. - Wired near your plan's up-to figure but Wi-Fi low means the house, not the line. - Distance, walls, the band and a crowded neighbor channel are the usual causes. - A cable to the one device you care about often fixes it for good. ## How do you tell a line problem from a Wi-Fi problem? Take a laptop that has an Ethernet port, or a small adapter if it does not. Plug it into a spare port on your router. Turn the laptop's Wi-Fi off so the test cannot cheat. Run a speed test, then run it twice more and write down the three results. Then unplug the cable, turn Wi-Fi on, stand in the same spot and test three more times. The wired number is the most your line can show to that router. High Desert's plans list up to 500, up to 800 and up to 1 Gig down and up to 200 up (hdiss.net, read 10/15/26), and a test never reaches an up-to figure exactly, so do not expect a perfect match. What matters is the gap. If wired is respectable and Wi-Fi is a small fraction of it, the line is doing its job. If both are low, the cause is upstream and you should call. The [speed test guide](https://hdiss.net/guides/how-to-run-a-speed-test/) has the full method. ## Why does Wi-Fi fall off so much inside a house? Wi-Fi is a radio signal and every wall takes a piece of it. Wood framing and drywall take a little. Stucco with wire mesh, brick, a masonry fireplace, a water heater closet, a mirror and a refrigerator take a lot. Metal siding and metal roofs on shops block signals almost completely, so a router in the house rarely reaches a metal building. Distance matters too, but not in a straight line. A router can look strong in the next room and drop off sharply two walls away. The higher radio bands, 5 GHz and 6 GHz, carry more data but get through walls less well than 2.4 GHz does. The [band guide](https://hdiss.net/guides/2-4-vs-5-vs-6-ghz/) explains the trade. ## What else slows Wi-Fi without touching the line? Four things come up most. First, the router sits low, in a cabinet or behind a TV. Second, the device is far from the router and on 2.4 GHz, which is the crowded band that baby monitors, microwaves and neighbors' routers also use. Third, an older router or an old laptop that only supports earlier Wi-Fi standards, which cap out far below what a newer one does, no matter how fast the plan. Fourth, too many devices asking for data at once, which is a sharing problem rather than a signal problem; see [how many devices is too many](https://hdiss.net/guides/how-many-devices-is-too-many/). A slow result on one device and a fine result on the others points at that device. Restart it, forget the network and join again, and check for updates. The [one-device article](https://hdiss.net/support/one-device-is-slow/) goes through the steps. ## What fixes work, in order of effort? Try them in that order. The first two cost nothing, and they fix a good share of the calls. - Move the router: higher, central, in the open. See [where to put your router](https://hdiss.net/guides/where-to-put-your-router/). - Join the 5 GHz network when you are in the same room or one wall away. - Run a cable to the TV, the desktop and the work computer. See [Ethernet for the things that matter](https://hdiss.net/guides/ethernet-for-the-things-that-matter/). - Update the router's firmware and restart it; the FTC advises keeping router software current (FTC, read 10/15/26). - If the house is large or has thick walls, think about a mesh system. See [whole-home Wi-Fi and mesh](https://hdiss.net/guides/whole-home-wifi-and-mesh/). ## When is it the line after all? If a wired test is poor on every try, at different hours, with only one device connected, then Wi-Fi is not the cause. Restart the equipment in the order the [restart article](https://hdiss.net/support/restart-your-equipment/) lists, wait a few minutes, and test again. Do not climb to the antenna or touch the outdoor radio or its cable; if the problem persists, call and a technician comes. Write down the wired results and the time you took them before you call. It saves the office a round of questions. A person answers at 775-575-9593 every day from 9 to 5, and the [slow internet checklist](https://hdiss.net/support/slow-internet-checklist/) covers the rest. ### Sources - [hdiss.net/services/](https://hdiss.net/internet-plans/) (High Desert plan cards, read 10/15/26) - [consumer.ftc.gov/articles/how-secure-your-home-wi-fi-network](https://consumer.ftc.gov/articles/how-secure-your-home-wi-fi-network) (FTC, read 10/15/26) - [ieee802.org/11/](https://www.ieee802.org/11/) (IEEE 802.11 working group, the Wi-Fi standards) ### Talk to a person - Call [775-575-9593](tel:7755759593) [775-391-5660](tel:7753915660) Open 9-5 every day - Email [info@hdiss.net](mailto:info@hdiss.net) [Check my address](https://hdiss.net/check-availability/#check) Local since 2002 Fixed wireless from towers in Northern Nevada. Three plans, no contracts, local support, 4.8 on Google from 36 reviews. [About High Desert](https://hdiss.net/about/) ### Keep reading - [How to run a speed test the right way](https://hdiss.net/guides/how-to-run-a-speed-test/) - [Where to put your router](https://hdiss.net/guides/where-to-put-your-router/) - [2.4 GHz vs 5 GHz vs 6 GHz Wi-Fi](https://hdiss.net/guides/2-4-vs-5-vs-6-ghz/) - [One device is slow](https://hdiss.net/support/one-device-is-slow/) - [Slow internet checklist](https://hdiss.net/support/slow-internet-checklist/) - [Wi-Fi dead spots](https://hdiss.net/support/wifi-dead-spots/) ## More on wi-fi and home network - [Where to put your router](https://hdiss.net/guides/where-to-put-your-router/): Put the router as high and as central as you can, in the open, with a clear line toward the rooms you use most, and away from metal, mirrors, fish tanks and the microwave. High Desert's cable comes in at the indoor - [Whole-home Wi-Fi and mesh: when you need it](https://hdiss.net/guides/whole-home-wifi-and-mesh/): You need mesh when one router in the middle of the house cannot reach the far rooms with a usable signal, and a cable to a second unit is the way to get the most from it. For a small or open house, one well-placed router - [Wi-Fi to a shop, barn or guest house](https://hdiss.net/guides/wifi-to-a-shop-barn-or-guest-house/): The most dependable way to reach a detached building is a buried Ethernet or fiber cable to an access point inside it. A point-to-point wireless bridge is the next choice, and a signal pushed through the air from the hou ## Questions people ask ### Does a faster plan fix slow Wi-Fi? Not if the slow part is the router or the walls. A cable test shows whether the line is the limit before you change a plan. ### Is my router too old? If it only lists older Wi-Fi standards or no longer gets updates, it may hold you back. See the guide on [end-of-life routers](https://hdiss.net/guides/end-of-life-routers/).