Samsung TV Error 100 — What It Means & How to Fix It

What Does This Error Mean?

Error 100 means your Samsung TV cannot detect any network connection whatsoever. The TV is not seeing your Wi-Fi or the ethernet cable is not providing a connection. Restarting your router and reconnecting the TV to the network usually resolves Error 100.

Affected Models

Samsung QLED Q80B
Samsung Crystal UHD AU8000
Samsung Frame TV
Samsung Neo QLED QN85B
Samsung Lifestyle TV The Serif

Common Causes

Your router or modem is offline or has lost the internet connection
The TV's Wi-Fi adapter has experienced a software glitch and stopped scanning for networks
An ethernet cable is disconnected, damaged, or plugged into a dead port
The TV's network settings have become corrupted after a firmware update
The router is broadcasting on a frequency or band the TV cannot detect

How to Fix It

Check if other devices (phone, laptop) can connect to Wi-Fi to determine if the problem is the TV or the router.

If no devices can connect, the problem is with your router or internet service — not the TV.
Unplug your router for 30 seconds, then plug it back in and wait 2 minutes for it to fully restart.

A router restart clears frozen states and forces it to rebroadcast the network signal.
On the TV, go to Settings > General > Network > Open Network Settings and try to connect again.

This forces the TV to re-scan for available networks and re-establish a connection.
If using ethernet, check that the cable is firmly plugged in at both ends and try a different cable or port.

Ethernet cables can fail internally without showing visible damage — swapping the cable rules this out.
Go to Settings > General > Network > Reset Network to clear the TV's stored network configuration.

A network reset deletes saved Wi-Fi passwords and forces a completely fresh connection attempt.
Update the TV firmware via Settings > Support > Software Update if a connection can be established, or via USB if not.

Samsung firmware updates often include fixes for network detection bugs that cause Error 100.

When to Call a Professional

Contact your internet service provider if your entire home network is down and rebooting the modem does not help. Samsung Support can diagnose a faulty Wi-Fi adapter if no networks appear even when other devices see them. If Error 100 started after a firmware update, Samsung may provide a patch or rollback procedure.

Frequently Asked Questions

Why does my Samsung TV show Error 100 when my phone connects to Wi-Fi fine?

The TV's Wi-Fi adapter or software may have a glitch that prevents it from detecting networks your phone sees. Try a network reset on the TV and update the firmware to the latest version. If the problem persists, Samsung Support can check whether the TV's network hardware needs repair.

Can Error 100 be caused by a power outage?

Yes — a power outage can corrupt the router's state or the TV's cached network settings. Always restart both the router and the TV after a power outage before checking for errors. If the TV's network settings were corrupted, a network reset will clear them.

Does Error 100 mean my TV's Wi-Fi is broken?

Not necessarily — Error 100 is most often a software or router issue, not hardware failure. A network reset and firmware update fix the majority of Error 100 cases. Only consider hardware failure if no networks appear at all and no other fixes work.