Error 107 looks like a dead internet connection, but it usually isn't — your router connection often tests fine. On Samsung's Tizen TVs, 107 is a Smart Hub error, and it sits in the same family as the rest of the Samsung TV error codes: the TV can reach your network but can't complete the secure handshake with Samsung's back-end servers (community diagnoses peg it as effectively an SSL/certificate failure). That's why "restart the router" so often does nothing here, and why the two fixes that actually land are a Smart Hub reset and a public DNS.
The likely cause
The TV is online but can't authenticate to Samsung's services. Two things cause that in practice: a stale Smart Hub state on the TV, or an ISP DNS server that can't cleanly resolve Samsung's hosts. Reset the first, override the second.
Fix it
- Reset Smart Hub. This targets the actual failure. Settings → Support → Device Care → Self Diagnosis → Reset Smart Hub (on older sets it's Support → Self Diagnosis → Reset Smart Hub). You'll re-sign into your Samsung account afterward — that's expected, and it re-establishes the connection that 107 broke.
- Force a public DNS. The single most-reported working fix. Settings → General → Network → Network Status → IP Settings → DNS Setting → Enter Manually, then set
8.8.8.8(Google) or1.1.1.1(Cloudflare). This bypasses the ISP DNS that's failing the Samsung-server lookup. - Re-check the connection on the other band. Settings → General → Network → Network Status. If you're on 2.4 GHz, try 5 GHz (or vice-versa) — a marginal link can fail the handshake even when "connected."
- Power-cycle the TV. Power off and unplug from the wall for at least 30 seconds so it fully discharges, then plug back in. A soft restart often isn't enough.
- Mind the firmware. Settings → Support → Software Update → Update Now. But if 107 started right after an auto-update, an update isn't the fix — a DNS change or Smart Hub reset usually carries you until the next build lands.
If it still won't clear
Because 107 is server-side at heart, a slice of cases are genuinely on Samsung's end and recover on their own — worth waiting an hour before you nuke anything. Wi-Fi distance matters too: Samsung flags more than ~15 metres or heavy obstructions between router and TV as a trigger, so a wired Ethernet run or an extender fixes those. Only after all of that is a full factory reset reasonable — and the path for it moves by model year. Newer sets use Settings → General & Privacy → Reset, older ones Settings → General → Reset, and some Settings → Support → Self Diagnosis → Reset. If none matches, search the settings for "Reset" rather than assuming yours is broken.
How it differs from nearby codes
Don't lump 107 in with Samsung's other network codes. 102, 105, and 012 are general failures — no Wi-Fi, DNS lookup fails outright, or the TV can't reach Samsung's server at all. 107 is specifically the secure-handshake layer: the TV is online and can see the server, but can't authenticate to it. That's why the Smart Hub reset and DNS override work for 107 where a plain reconnect works for the others.
FAQ
Does error 107 mean my Wi-Fi is down? Usually not. The network connection often tests fine — 107 is the TV failing to authenticate to Samsung's servers, not a lost router link.
Why did 8.8.8.8 fix it? Because the failure is frequently a DNS/handshake issue reaching Samsung's hosts. A reliable public resolver completes the lookup your ISP's DNS was fumbling.
It came back after a software update — now what? That's a known pattern. Reset Smart Hub and set a public DNS; if it persists, it's likely a firmware bug and the next update tends to clear it.