5 GHz Wi-Fi not showing
The 5 GHz radio may be disabled, using an unsupported channel, sharing one hidden band-steered name, or out of range for the device.
New and materially updated troubleshooting paths, ordered by their latest editorial review date.
The 5 GHz radio may be disabled, using an unsupported channel, sharing one hidden band-steered name, or out of range for the device.
Audio output may be routed elsewhere, one AirPod may not be detected or charged, automatic switching may move the connection, or the pairing state may be stuck.
A weak power supply, storage problem, failed update, accessory conflict, or software corruption can keep Fire TV on its startup logo.
Media audio may be disabled for the device, output may be routed elsewhere, another device may hold the connection, or the Bluetooth profile may be stuck.
High screen use, poor signal, background apps, location, heat, a recent update, or an aging battery can increase power use.
The SIM or eSIM may be disabled, poorly seated, damaged, unprovisioned, carrier-locked, or affected by a phone radio or software problem.
On many Brother inkjet models, “Unable to Print 46” is associated with the internal ink absorber or purge system reaching its service limit.
The website is sending the browser through a redirect loop. Conflicting cookies, HTTP-to-HTTPS rules, login state, proxy settings, or the website configuration can cause the loop.
The router may use another gateway address, the device may not be connected locally, HTTPS may be required, or a VPN, browser, or management restriction may block the page.
Error 5100 on many Canon inkjet printers indicates that the carriage cannot move or be positioned normally because of an obstruction, paper scrap, packing material, or carriage mechanism fault.
B200 on many Canon inkjet models points to a serious printhead or printhead-control condition, often involving abnormal temperature or electrical detection.
The DNS lookup did not return a usable address for the domain. The name may be mistyped, expired, temporarily unavailable, filtered, or failing through the current DNS resolver.
The destination was reached, but nothing accepted the connection on the requested service. The website may be down, blocked, misconfigured, or reachable only through a specific network.
Chrome reached the network, but the connection was closed before the page finished loading. A router, VPN, security filter, proxy, browser state, or the website itself can reset the session.
Other apps or browsers reach the internet, but Chrome cannot load pages because of extensions, proxy or DNS settings, profile corruption, security filtering, or a stuck browser process.
Chrome cannot validate the website certificate for the current connection. A wrong clock, expired certificate, captive portal, interception, or unsafe site configuration can trigger the warning.
The phone and Chromecast may be on different networks, local-network permission may be blocked, isolation may be enabled, or the Chromecast may not be in setup mode.
A door-seal issue, loose hose, excess foam, overfilling, or an internal pump and sump leak can put water under a dishwasher.
Debris in the filter or pump area, a spray arm striking dishes, a dry pump, or a worn circulation or drain component can create grinding or rattling sounds.
Blocked spray arms, incorrect loading, low water temperature, weak filling, poor detergent use, or a circulation problem can leave food and film on dishes.
A blocked filter, drain hose, air gap, disposer connection, or pump can leave dirty water in the bottom of a dishwasher.
Cycle selection, rinse aid, loading, plastic items, low final-rinse temperature, or a heating and ventilation fault can leave dishes wet.
A closed supply valve, kinked hose, door-latch issue, stuck float, blocked inlet path, or failed inlet valve can prevent a dishwasher from filling.
Food debris, a dirty filter, standing water, poor drain-hose routing, or long periods with the door closed can cause musty, sour, or sewage-like odors.
A power problem, unlatched door, control lock, delayed start, interrupted cycle, or failed switch or control can prevent a dishwasher from running.
Error 0x97 on affected Epson inkjet models generally indicates an internal hardware or printhead-control fault that can appear during startup or printing.
The cable link is active, but the router, DHCP, DNS, VLAN, authentication, or internet service is not providing usable access.
A red LOS light means loss of optical signal on many fiber ONTs or gateways. The fiber path, connector, provider network, or optical terminal is not receiving usable light.
Chrome can crash because of a damaged profile, incompatible extension, graphics acceleration issue, low memory, outdated build, or security software conflict.
Weak GPS visibility, Wi-Fi or cellular positioning, disabled precise location, sensor calibration, VPN, cached maps, or account timeline confusion can place the device incorrectly.
A stuck queue, weak connection, low storage, account state, Play Store services, date/time, or device policy can leave downloads pending or failing.
On many HP DeskJet families, E4 indicates a paper-jam condition or paper-path obstruction. The exact display can differ by model, so use the full model number.
The code may be sent to an old contact method, filtered as spam, delayed by the carrier or email provider, blocked by repeated requests, or intercepted by an account-security issue.
Network instability, a large or unsupported media file, missing permissions, low storage, app cache, or an Instagram service issue can leave a Story processing or retrying.
Audio may still be routed to the iPhone, another device, a call profile, or a muted output even though the Bluetooth accessory shows connected.
The iPhone has joined the router, but the network, captive portal, VPN, Private Relay, DNS, or saved configuration is not passing internet traffic.
Carrier service, blocked contacts, iMessage routing, Focus filtering, SIM or eSIM state, storage, or message settings can prevent SMS or iMessage from arriving.
Blocked microphone openings, Bluetooth routing, app permissions, a case, software state, liquid, or hardware damage can make calls or recordings silent or muffled.
A mesh node may lose power, backhaul signal, Ethernet link, firmware coordination, or account association with the main router.
Signal bars can show radio coverage while mobile data is blocked by the plan, SIM provisioning, APN, roaming, data limit, outage, or phone network settings.
Audio can continue while the video path fails because of an app rendering issue, HDMI or HDCP problem, display mode conflict, screen mirroring limitation, or device software fault.
The Netflix app may fail because of a temporary service issue, stale app state, TV software, network trouble, account state, or an unsupported device version.
Unstable bandwidth, Wi-Fi interference, congestion, device performance, VPN routing, or service-side trouble can interrupt Netflix playback even when a speed test looks acceptable.
The Switch may be deeply discharged, using an incompatible adapter, have debris or damage in the USB-C port, be frozen, or have a battery or charging-circuit fault.
DNS, IPv6, MTU, filtering, date/time, browser security, or a partial provider routing issue can make selected sites fail while others work.
The camera may be held by another app, blocked by permissions or privacy controls, frozen in software, covered physically, or damaged after impact or liquid exposure.
Fast charging, high ambient temperature, heavy use, a poor charger or cable, wireless charging losses, a damaged battery, or a stuck app can raise phone temperature.
The console may output an unsupported resolution, fail the HDMI handshake, use a damaged cable or port, or start without completing normal video output.
An empty or vent-blocked cartridge, dried nozzles, air in the ink path, incorrect media settings, or a printhead fault can leave black text blank or faint.
Blank pages can result from empty or sealed supplies, blocked nozzles, an incorrect paper path, driver output trouble, or a document that contains hidden or white content.
Dirty or blocked nozzles, low supplies, damaged imaging parts, alignment trouble, unsuitable paper, or debris in the paper path can create repeated lines.
A small torn scrap, dirty or stuck sensor flag, obstructed carriage path, incorrect paper loading, or a feed mechanism that did not return home can keep the jam warning active.
The computer may be using an old printer instance, wrong port, stale network address, paused queue, or a connection that exists physically but is not responding.
Roku has joined the local wireless network, but the router, DNS path, captive portal, provider, or Roku network session is not reaching the internet.
A continuously blinking DSL light means the modem is trying to synchronize with the telephone-line service but has not established a stable DSL link.
A red internet or WAN light usually means the router cannot establish a usable upstream connection to the modem or provider, but exact LED meanings vary by model.
Unstable power, overheating, firmware crashes, failing hardware, a loop, or heavy load can make a router reboot without warning.
The progress bar can move while audio is routed to another device, muted by the system or app mixer, controlled by Spotify Connect, or blocked by an audio driver or app state.
The TV is on an HDMI input but does not detect usable video. A wrong input, sleeping source, cable fault, port issue, resolution mismatch, receiver, or handshake problem can cause the message.
A washer door normally remains locked while water is present, the drum is moving, the machine is hot, or the control has not completed its release sequence.
A loose hose connection, overflowing detergent, a blocked drain path, a damaged door seal, or an internal hose or pump leak can produce water under a washer.
A blocked filter or hose, a jammed pump, an installation problem, or incorrect cycle behavior can leave water in a washing machine after the cycle ends.
Closed valves, low pressure, kinked hoses, blocked inlet screens, a door-lock issue, or a failed inlet system can prevent a washer from filling.
An unbalanced load, retained water, an unlocked door, a selected no-spin option, or a drive-system fault can prevent the final spin.
An uneven load, incorrect leveling, transport bolts, a flexible floor, or worn suspension can cause excessive movement during high-speed spin.
Detergent residue, trapped moisture, low-temperature washing, a dirty gasket or filter, and a slow household drain can produce musty or sewage-like odors.
A power issue, an open or unlocked door, control lock, delayed start, water-supply problem, or failed control component can keep a washer from beginning a cycle.
The server understood the request but refuses to authorize it. Permissions, login state, region, IP reputation, security rules, or a private resource can produce HTTP 403.
The service is rate-limiting requests from the browser, account, app, or IP address. Repeated refreshes, automation, extensions, shared networks, or service limits can trigger HTTP 429.
A gateway or proxy received an invalid response from an upstream server. The website, hosting platform, CDN, load balancer, or origin service is usually responsible for HTTP 502.
The server is temporarily unable to handle the request. Maintenance, overload, failed dependencies, disabled application pools, or capacity limits commonly produce HTTP 503.
A gateway waited too long for an upstream service to respond. Slow database work, overloaded application servers, network faults, or timeout settings commonly cause HTTP 504.