Samsung TV Error 105 — What It Means & How to Fix It

What Does This Error Mean?

Error 105 means your Samsung TV has a network connection but its DNS lookup is failing. DNS is the system that translates names like 'samsung.com' into numeric addresses the TV can reach. Changing to a public DNS server like Google's usually fixes Error 105 within minutes.

Affected Models

Samsung QLED Q80B
Samsung QLED Q70A
Samsung Crystal UHD AU8000
Samsung The Frame
Samsung Neo QLED QN90B

Common Causes

Your ISP's DNS server is slow, unreliable, or temporarily down
Router is not correctly forwarding DNS requests from the TV
TV's network settings have an incorrect DNS server address saved
DNS cache on the TV has become corrupted
Router firmware bug causing DNS resolution failures for smart TVs

How to Fix It

Go to Settings > General > Network > IP Settings and set DNS Mode to 'Enter Manually'.

This allows you to override the DNS your router provides.
Enter 8.8.8.8 as the primary DNS and 8.8.4.4 as the secondary DNS (Google's public servers).

Google DNS is reliable and works with Samsung Smart Hub without restrictions.
Save the settings, then go back and run a Network Status test.

The network test will confirm whether DNS resolution is now working.
Restart the TV by unplugging it for 30 seconds, then retry Smart Hub.

A power cycle clears the DNS cache and applies the new settings cleanly.
Restart your router — some routers have buggy DNS relay that clears itself on reboot.

Unplug for 30 seconds, wait 2 minutes after powering on before testing.
Update the TV firmware via Settings > Support > Software Update > Update Now.

Samsung has issued firmware patches for DNS-related Smart Hub connectivity bugs.

When to Call a Professional

Contact your ISP if their DNS servers are consistently unreliable. Samsung support can help if Error 105 persists after switching DNS and resetting the network. A network technician can diagnose router-level DNS forwarding issues.

Frequently Asked Questions

What is DNS and why does it cause Samsung TV Error 105?

DNS stands for Domain Name System — it is like a phone book for the internet. When your TV wants to connect to Samsung's servers, it first asks DNS to look up the address. If DNS fails, the TV cannot find Samsung's servers even though the internet connection is working.

Is it safe to use Google DNS (8.8.8.8) on my Samsung TV?

Yes — Google DNS is one of the most widely used and trusted DNS services in the world. It is free, fast, and has no restrictions on smart TV traffic. Alternatively, Cloudflare DNS (1.1.1.1) is another excellent and privacy-focused option.

Why does my Samsung TV get Error 105 but my phone works fine?

Your phone may be using a different DNS server set by your mobile carrier or a DNS-over-HTTPS setting. The TV uses the DNS provided by your router, which may be unreliable. Setting a manual DNS directly on the TV bypasses the router's DNS and usually fixes the difference.