What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
Roku’s network menus let you test connectivity, but they do not provide a DNS-server field. If you need to try different DNS servers, make the change on the router or ISP gateway that supplies the Roku’s network. The exact menu depends on the equipment and firmware; some gateways hide the setting entirely.
First establish that DNS is relevant. On the Roku, open Settings > Network > Check connection. The result distinguishes a failure to reach the router from a device that reaches the router but cannot reach the internet. Test another device on the same network and restart the Roku and network equipment before editing DNS. A DNS change cannot repair weak Wi-Fi, an incorrect password, a failed modem, or an ISP outage.
What changing DNS can—and cannot—fix
DNS translates a service name into an internet address. A Roku may be connected to Wi-Fi and still fail when it cannot resolve or reach online services. Changing the DNS service used by your network can help when name resolution is the specific failure, but it is only one layer of the connection.
Recommended Free Tools
Roku’s official connection guidance covers testing and recovery rather than editing DNS on the player. Use Roku’s connection-check instructions to see whether the player can contact the router and the internet. For Wi-Fi symptoms, Roku also provides wireless-connection troubleshooting and a guide for Roku devices that will not connect to Wi-Fi.
#1 Best Overall
- DUAL-BAND WIFI 6 ROUTER: Wi-Fi 6(802.11ax) technology achieves faster speeds, greater capacity and reduced network congestion compared to the previous gen. All WiFi routers require a separate modem. Dual-Band WiFi routers do not support the 6 GHz band.
- AX1800: Enjoy smoother and more stable streaming, gaming, downloading with 1.8 Gbps total bandwidth (up to 1200 Mbps on 5 GHz and up to 574 Mbps on 2.4 GHz). Performance varies by conditions, distance to devices, and obstacles such as walls.
- CONNECT MORE DEVICES: Wi-Fi 6 technology communicates more data to more devices simultaneously using revolutionary OFDMA technology
- EXTENSIVE COVERAGE: Achieve the strong, reliable WiFi coverage with Archer AX1800 as it focuses signal strength to your devices far away using Beamforming technology, 4 high-gain antennas and an advanced front-end module (FEM) chipset
- OUR CYBERSECURITY COMMITMENT: TP-Link is a signatory of the U.S. Cybersecurity and Infrastructure Security Agency’s (CISA) Secure-by-Design pledge. This device is designed, built, and maintained, with advanced security as a core requirement.
Changing DNS is therefore a router-side troubleshooting experiment, not a guaranteed Roku repair. If every device in the home is offline, investigate the modem, gateway, or ISP first. If only the Roku is affected, verify its network selection and signal before altering a setting that may affect the whole household.
Diagnose the failure before opening router settings
Run Roku’s built-in connection check
- From the Roku Home screen, select Settings.
- Choose Network.
- Select Check connection and let the test finish.
Record whether the failure is at the router/Wi-Fi stage or at the internet stage. A router-stage failure means the Roku is not properly associated with the local network; DNS is downstream from that problem and will not help yet. An internet-stage failure means the Roku reached the local router but could not reach online services, which can involve the ISP, gateway, DNS, or another upstream fault.
Compare another device on the same network
Use a phone or computer connected to the same Wi-Fi network, not cellular data or a guest network. Open a normal public website. If that device also fails, the issue is broader than Roku. If other devices work, the Roku may be using the wrong SSID, have a weak signal, retain stale network information, or have an app-specific problem.
Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesRestart in the least disruptive order
- Confirm the Roku is connected to the intended Wi-Fi name and that the password has not changed.
- Restart the Roku using its power or system-restart option. If it is powered by USB, unplug it briefly only after normal restart options are unavailable.
- Restart the router and modem or gateway. Allow the equipment to finish booting before retesting.
- Move the Roku or wireless equipment to improve signal if the connection test reports weak Wi-Fi.
Roku’s Wi-Fi guidance, listed as last updated September 9, 2026 on the retrieved support page, describes signal and equipment checks that should precede a DNS change.
Prepare before changing a shared network setting
A router DNS change can affect televisions, phones, computers, cameras, and smart-home devices, not just the Roku. Before signing in, write down the router manufacturer, exact model, firmware version if shown, and whether it is operating as a router, access point, or mesh satellite. Record the current DNS mode and addresses, and make sure you know the administrator login. The administrator password may not be the same as the Wi-Fi password.
Make the change while connected locally to the main network, preferably with a computer connected by Ethernet if one is available. Keep the router’s manual or support page open for the exact model. A saved screenshot of the original values gives you a simple rollback path. Warn other household users that saving the setting may briefly interrupt every client.
Rank #2
- Dual-band Wi-Fi with 5 GHz speeds up to 867 Mbps and 2.4 GHz speeds up to 300 Mbps, delivering 1200 Mbps of total bandwidth¹. Dual-band routers do not support 6 GHz. Performance varies by conditions, distance to devices, and obstacles such as walls.
- Covers up to 1,000 sq. ft. with four external antennas for stable wireless connections and optimal coverage.
- Supports IGMP Proxy/Snooping, Bridge and Tag VLAN to optimize IPTV streaming
- Access Point Mode - Supports AP Mode to transform your wired connection into wireless network, an ideal wireless router for home
- Advanced Security with WPA3 - The latest Wi-Fi security protocol, WPA3, brings new capabilities to improve cybersecurity in personal networks
Identify the device that actually controls DNS
Many homes have either a standalone router connected to a separate modem or an ISP gateway that combines modem and router functions. The gateway is the device normally assigning local addresses and forwarding traffic. Write down its manufacturer and exact model before following any menu path; two products from the same company can place DNS controls in different sections.
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Standalone router
If an Ethernet cable runs from a modem to a separate router’s internet/WAN port, the router usually controls the household’s client DNS settings. Its administration may be available through a mobile app, a local web address, or both. Connect a phone or computer to that router while making changes.
ISP gateway
An ISP gateway may expose only a simplified customer interface. The provider can lock DNS to its own service, hide advanced controls, or require a support request. Do not assume that a publicly documented router menu applies to an ISP-supplied unit. Ask the ISP whether custom DNS is supported and whether a change would affect all clients or only a selected network.
Mesh and access-point arrangements
Mesh systems often use an app and may put client DNS under DHCP or LAN settings rather than under the internet connection page. In access-point mode, another upstream router may be the device that actually assigns DNS. If you edit the satellite or access point but clients still receive values from the upstream gateway, the Roku will not change. Trace which device provides DHCP before saving anything.
Understand which DNS setting you are changing
Router interfaces commonly expose DNS in one of two functional areas:
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallCrashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minute- Internet or WAN DNS: controls how the router itself obtains or uses name servers on its upstream connection. Depending on the model, this may also be handed to clients.
- DHCP or LAN DNS: supplies DNS-server addresses to devices when they request a local network lease. This is often the setting that directly determines what a Roku receives.
The labels and behavior are model-specific. A router can show both areas, show only one, or replace them with an automatic-versus-manual selector. Read the manufacturer’s documentation for the exact model and firmware, and note the original automatic values before saving anything.
Rank #3
- NIGHTHAWK WIFI 6 ROUTER FOR YOUR WHOLE HOME: Delivers fast, reliable WiFi across every room of your apartment or small home for streaming, gaming, video calls, and smart home devices, all running at the same time without slowing each other down.
- WORKS WITH YOUR EXISTING INTERNET SERVICE: Pairs with your existing modem or gateway via ethernet. Compatible with most cable, fiber, DSL, and satellite providers. Some gateways and modem router combos may require bridge mode. No coax needed.
- SET UP AND MANAGE YOUR NETWORK WITH THE NIGHTHAWK APP: Download the free Nighthawk app on iOS or Android for guided setup. Manage WiFi, run speed tests, pause devices, and set up guest networks from anywhere. Active internet required.
- READY FOR THE DEVICES YOU ALREADY OWN: Your phones, laptops, and TVs work right out of the box. WiFi 6 delivers speeds up to 1.8 Gbps across 2.4 GHz and 5 GHz bands. Backward compatible with WiFi 5 and earlier.
- COVERAGE IN EVERY ROOM: Covers up to 1,500 sq. ft. for up to 20 connected devices. Walls, floors, and interference can reduce range. Larger or multi-story homes may benefit from a NETGEAR Orbi mesh WiFi system.
Also check the scope shown beside the field. Some equipment applies a manual value to every LAN, while other systems let you choose a primary, guest, or IoT network separately. A Roku connected to a guest SSID may therefore keep receiving different DNS information even after you change the main network.
General procedure for changing DNS on a router
- Connect locally. Join the router’s main network with a phone or computer. Avoid making the change over a remote-management session unless you understand how to recover access.
- Open management. Launch the router’s official app or local administration page. Sign in with the administrator credentials; these are different from the Wi-Fi password on some equipment.
- Locate the DNS control. Look under labels such as Internet, WAN, Network, DHCP, or LAN. Use the model’s support instructions rather than a universal address or menu sequence.
- Record the current mode. Note whether DNS is automatic, inherited from the ISP, or manually entered. Save a screenshot or write down existing values so you can roll back.
- Choose manual DNS only when appropriate. Enter the DNS server addresses supplied by the service you intend to use. Enter each value in its own primary or secondary field; do not put explanatory text into the address boxes.
- Save or apply. The router may reload its internet connection, restart a service, or briefly disconnect every client. Wait for the status indicator to return to normal.
- Refresh client leases. If the router does not automatically renew DHCP information, disconnect and reconnect the Roku to Wi-Fi or restart it. Other household devices may also need to reconnect before they receive the new DNS values.
- Retest. Run Settings > Network > Check connection on the Roku and test another device. Check the specific app or content that originally failed.
Do not change unrelated WAN, DHCP-range, security, or bridge-mode fields while looking for DNS. A typo in a network address can disconnect the entire home and make router recovery harder.
Examples of model-specific menus
These examples illustrate why a universal path would be misleading. They apply to the named product families and are not instructions for every router.
| Equipment family | Documented path | What it demonstrates |
|---|---|---|
| TP-Link wireless routers | Advanced > Network > Internet in the web-management interface | DNS can appear with the internet/WAN connection settings. See TP-Link’s router DNS instructions. |
| TP-Link Deco systems | More > Advanced > DHCP Server in the Deco app | Mesh systems may expose client DNS through DHCP/LAN settings instead. See TP-Link’s Deco DNS instructions. |
If your interface does not match either example, stop searching by guesswork and use the manufacturer’s current manual. Firmware updates, regional editions, access-point mode, and ISP customization can change the available controls.
Choose the right route when the menu is missing
| Route | When it fits | What to check |
|---|---|---|
| Change DNS on the current router or gateway | The device exposes a manual DNS control that covers the Roku’s network | Whether the field is WAN or DHCP/LAN, which clients receive it, and whether the change affects every household device |
| Ask the ISP to expose or change DNS | The provider manages the gateway or has restricted advanced settings | Whether custom DNS is supported, whether support must make the change, and which networks or clients it affects |
| Use a compatible configurable router | The existing gateway cannot provide the required control | ISP compatibility, whether the gateway must use bridge or passthrough mode, the new router’s DNS controls, and correct wiring |
Adding a router is optional, not the first troubleshooting step. Confirm that the ISP allows customer equipment and understand whether the existing gateway can be bridged or must remain in a compatible configuration. Incorrectly combining two routing devices can create double NAT or leave the Roku on the wrong network. A Wi-Fi router with configurable DNS is a reasonable product-search description, but choose only after confirming compatibility; no particular model is required for Roku.
Questions to ask the ISP
- Does this gateway model permit customer-selected DNS servers?
- Can support change the setting remotely, and does it apply to the main, guest, and other networks?
- Is bridge or passthrough mode supported if I add my own router?
- Will using customer equipment affect support, voice service, or other gateway features?
Troubleshoot according to the connection-check result
The Roku cannot reach the router or Wi-Fi
Recheck the network name and password, confirm that the Roku is within usable wireless range, and restart both the Roku and network equipment. If the router uses separate 2.4 GHz and 5 GHz names, make sure the Roku is joining the intended one. DNS settings cannot help until the player has a local connection and an address from the router.
Rank #4
- 𝐅𝐮𝐭𝐮𝐫𝐞-𝐑𝐞𝐚𝐝𝐲 𝐖𝐢-𝐅𝐢 𝟕 - Designed with the latest Wi-Fi 7 technology, featuring Multi-Link Operation (MLO), Multi-RUs, and 4K-QAM. Achieve optimized performance on latest WiFi 7 laptops and devices, like the iPhone 16 Pro, and Samsung Galaxy S24 Ultra.
- 𝟔-𝐒𝐭𝐫𝐞𝐚𝐦, 𝐃𝐮𝐚𝐥-𝐁𝐚𝐧𝐝 𝐖𝐢-𝐅𝐢 𝐰𝐢𝐭𝐡 𝟔.𝟓 𝐆𝐛𝐩𝐬 𝐓𝐨𝐭𝐚𝐥 𝐁𝐚𝐧𝐝𝐰𝐢𝐝𝐭𝐡 - Achieve full speeds of up to 5764 Mbps on the 5GHz band and 688 Mbps on the 2.4 GHz band with 6 streams. Enjoy seamless 4K/8K streaming, AR/VR gaming, and incredibly fast downloads/uploads.
- 𝐖𝐢𝐝𝐞 𝐂𝐨𝐯𝐞𝐫𝐚𝐠𝐞 𝐰𝐢𝐭𝐡 𝐒𝐭𝐫𝐨𝐧𝐠 𝐂𝐨𝐧𝐧𝐞𝐜𝐭𝐢𝐨𝐧 - Get up to 2,400 sq. ft. max coverage for up to 90 devices at a time. 6x high performance antennas and Beamforming technology, ensures reliable connections for remote workers, gamers, students, and more.
- 𝐔𝐥𝐭𝐫𝐚-𝐅𝐚𝐬𝐭 𝟐.𝟓 𝐆𝐛𝐩𝐬 𝐖𝐢𝐫𝐞𝐝 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 - 1x 2.5 Gbps WAN/LAN port, 1x 2.5 Gbps LAN port and 3x 1 Gbps LAN ports offer high-speed data transmissions.³ Integrate with a multi-gig modem for gigplus internet.
- 𝐎𝐮𝐫 𝐂𝐲𝐛𝐞𝐫𝐬𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐂𝐨𝐦𝐦𝐢𝐭𝐦𝐞𝐧𝐭 - TP-Link is a signatory of the U.S. Cybersecurity and Infrastructure Security Agency’s (CISA) Secure-by-Design pledge. This device is designed, built, and maintained, with advanced security as a core requirement.
The Roku reaches the router but not the internet
Test another device on the same network and open a public website. If all devices fail, inspect the modem or gateway’s internet status and contact the ISP when service remains unavailable. If the failure is isolated to the Roku, verify its network selection, restart it, and repeat the connection test. A router-side DNS change is reasonable only when other evidence points toward name resolution; it is not proof that DNS is the cause.
Other devices work, but Roku apps will not open or content will not load
Run the Roku test again, confirm the player is not on a guest or isolated network, and check whether one app or every online service is affected. Restarting the Roku can clear a stale lease or temporary service state. If you change router DNS, test both the Roku and another client afterward so you can distinguish a DNS effect from a coincidental recovery.
The router has no editable DNS field
Check whether you are using an ISP gateway, an access point, or a restricted account. Contact the ISP and ask specifically whether customer DNS is supported on that model. If not, a compatible configurable router is an optional hardware solution, but verify equipment and bridge-mode requirements before buying or rewiring anything.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Verify the result and roll back safely
- Wait until the router reports a normal internet connection.
- Reconnect or restart the Roku so it requests current network information.
- Run Settings > Network > Check connection.
- Open the previously failing app or content and test a second online service.
- Check another device on the same network, especially if the DNS setting was delivered through DHCP.
If the result is worse, return the DNS mode to its recorded automatic setting or restore the original addresses, save, and reconnect clients again. If the router becomes unreachable, use its documented recovery process rather than repeatedly changing unrelated settings. Keep a record of what was changed and when; it helps the ISP or router manufacturer identify the fault.
Do not confuse streaming speed with DNS health
Roku publishes example download-speed requirements of 3 Mbps for Standard Definition (SD), 5 Mbps for High Definition (HD), and 25 Mbps or more for 4K Ultra HD. Roku presents these as streaming-bandwidth guidance; the retrieved support article does not state a publication year. App-specific requirements and other devices consuming bandwidth can affect playback. Meeting a speed threshold does not demonstrate that DNS is working, and changing DNS does not increase an undersized internet connection.
When to stop changing settings
- The Roku cannot associate with Wi-Fi or repeatedly loses signal.
- Every device fails to reach the internet, indicating an ISP, modem, or gateway outage.
- The router’s status shows no upstream connection after a restart.
- The ISP does not support custom DNS on its gateway and you have no confirmed compatible-router plan.
- The Roku connection test succeeds and only one app has a service-side problem.
In these cases, continue with Roku’s connection and Wi-Fi guidance or contact the ISP rather than repeatedly editing DNS. The useful boundary is simple: fix local Wi-Fi first, establish that the internet path works, then use router DNS controls only when the remaining symptoms justify that experiment.
Best Value
- Dual band router upgrades to 1200 Mbps high speed internet (300mbps for 2.4GHz plus 900Mbps for 5GHz), reducing buffering and ideal for 4K stream
- Full Gigabit Ports - Gigabit Router with 4 Gigabit LAN ports, ideal for any internet plan and allow you to directly connect your wired devices
- Boosted Coverage - Four external antennas equipped with Beamforming technology extend and concentrate the Wi-Fi signals
- MU-MIMO technology - (5GHz band) allows high speeds for multiple devices simultaneously
- Access Point Mode - Supports AP Mode to transform your wired connection into wireless network, an ideal wireless router for home
Frequently Asked Questions
Can I enter a DNS server directly on a Roku?
Roku’s documented network menus provide a connection check, not a DNS-server entry field. Configure DNS on the router or gateway that supplies the Roku’s network instead.
Which router menu should I use?
There is no universal path. DNS may be under Internet or WAN settings, or under DHCP/LAN settings that are distributed to clients. Use the manual for your exact model and firmware.
Will changing router DNS fix a Roku that will not connect to Wi-Fi?
No. A Wi-Fi association, password, signal, or router-stage failure occurs before DNS. Confirm the network and run Roku’s connection check first.
Will every device in my home use the new DNS?
Often, but not always. A router-wide or DHCP/LAN setting may affect all clients on a network, while some mesh systems let you select individual networks. Check the setting’s stated scope and reconnect clients.
What if my ISP gateway has no DNS option?
Ask the ISP whether custom DNS is supported or whether support can change it. A compatible configurable router is another option if the ISP permits it and the gateway can be configured correctly.
Do Roku’s 3 Mbps, 5 Mbps, and 25 Mbps figures prove that DNS is healthy?
No. Those are example streaming-bandwidth requirements for SD, HD, and 4K Ultra HD. They do not test name resolution or guarantee that an app will load.
How do I undo a DNS change?
Restore the recorded automatic mode or original addresses, save the router setting, reconnect or restart the Roku, and run the connection check again.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →The Bottom Line
Roku does not expose a DNS-editing control. Check the Roku’s connection result, test another device, and restart the network before changing anything. If DNS remains a plausible cause, change it on the router or gateway using the exact manufacturer instructions, refresh the Roku’s network lease, and retest. If the gateway hides the setting, ask the ISP about support or a compatible configurable router rather than guessing at menus or replacing equipment prematurely.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
