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: 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 (Settings → General → Reset) reasonable.
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.