TCL TVs Won't Connect to WiFi: How to Fix It Yourself
WiFi connection problems on TCL TVs are very common and almost always fixable with a few settings changes. It's usually a router issue, a DNS setting, or a software glitch — not a hardware problem. You won't need any tools or parts for this fix.
⚠️ Safety First
- Make sure you know your WiFi password before starting — you may need to re-enter it.
Parts You May Need
Affiliate links — we may earn a small commission at no cost to you.
Step-by-Step Repair
- 1
Restart both the TV and your router
Unplug your TCL TV and your WiFi router. Wait 60 seconds. Plug the router back in first and wait for all the lights to come back on (about 2 minutes). Then plug the TV back in. This clears out network glitches on both ends and fixes WiFi issues more often than any other step.
- 2
Forget the network and reconnect
On your TCL TV, go to Settings > Network & Internet > WiFi. Find your network name and select it. Choose 'Forget Network.' Now scan for networks again and reconnect from scratch. Enter your WiFi password carefully — one wrong character and it won't connect. Use the 'Show Password' option if available to double-check.
- 3
Change DNS settings manually
If the TV connects to WiFi but apps won't load, try changing the DNS. Go to Settings > Network & Internet > WiFi, select your network, and choose 'Advanced' or 'IP Settings.' Change DNS to manual and enter 8.8.8.8 for primary DNS and 8.8.4.4 for secondary DNS. These are Google's public DNS servers and are more reliable than some ISP defaults.
- 4
Check for a software update via USB if needed
If you can't connect to WiFi at all, you can still update the TV software via USB. Go to the TCL support website on your computer, find your TV model, and download the latest firmware to a USB drive. Plug the USB into your TV and go to Settings > System > About > System Update. Updating the firmware fixes many WiFi bugs that TCL has patched in newer versions.
- 5
Try the 2.4GHz network instead of 5GHz
Many routers broadcast two networks — a 2.4GHz and a 5GHz one. The 5GHz network is faster but has shorter range and can struggle to reach a TV in another room. If your WiFi name has '5G' at the end, try the one without it. The 2.4GHz network is slower but more reliable through walls and at longer distances.
If That Didn't Work
- Too many devices connected to the router at the same time
- The TV is too far from the router or there are thick walls blocking the signal
- Router firmware is outdated and causing compatibility issues
When to Call a Professional
If none of these steps work, try connecting the TV to your phone's hotspot to test the WiFi hardware. If the TV connects to the hotspot fine, the problem is with your router, not the TV — contact your internet provider. If the TV can't connect to anything, the WiFi module may be faulty. You can use an inexpensive USB WiFi adapter or Ethernet cable as a workaround.
Related Repairs
Disclaimer: This guide is for informational and educational purposes only and does not constitute professional repair advice. All repairs are performed at your own risk. RepairItFree.com is not liable for any personal injury, property damage, device damage, voided warranties, or other losses resulting from the use of this information.
If you are unsure about any step — especially anything involving electricity, gas, water, or refrigerant — stop and consult a qualified professional. Your safety is more important than saving money.
See our full Terms of Service for complete legal details.