How to turn off the China Telecom optical modem (WiFi)? My phone is always stuck to that one-bar ChinaNet signal, and after turning it off, my speed increases tenfold

last year when I installed broadband, the technician casually turned on the built-in WiFi after adjusting the optical modem, and the name is ChinaNet with four letters starting with the first letter. At the time, I didn't pay much attention—anyway, I later bought a Xiaomi AX3000T myself, and the WiFi at home was my own. Who would still connect to the optical modem? But by this spring, something strange happened: sitting at the far end of the living room sofa, my phone was fully loaded, but while watching videos, it spun in circles. Speed tests alternated between 23 Mbps and 200 Mbps, like a crazy episode. After checking for two nights, I found out my phone hadn't connected to my AX3000T at all; it was stuck tightly to ChinaNet, the optical modem.

Why is

phone always stuck to the WiFi on the optical modem

let's first settle the score. The optical modem is installed in the weak current box. My home is behind the entryway shoe cabinet, separated by one and a half walls from the sofa in the living room. When the phone stands in the corner of the sofa, the fiber modem WiFi signal received is -78dBm, and the AX3000T signal is -52dBm. Normally, a phone should choose a connection with good signal, but the logic of phones is: "As long as your current WiFi isn't completely broken, don't let go"—this is the old saying about roaming stickiness. my article about Mesh roaming I specifically explained this principle: two networks with the same name stick together, while two networks with different names are even stickier, because phones never actively compare which is better. What level is

-78dBm? In the table, it belongs to the category of 'can connect, but the video lags' category. My test: with optical modem and WiFi, download speed is 23MB; Manually switched to AX3000T, download 290MB. The difference is more than ten times, yet the phone would rather die than cut it. Isn't that infuriating?

the optical modem and WiFi are on, but the damage isn't just speed—there are two more issues. First, channel conflict: My optical modem 2.4G is fixed on channel 6, and AX3000T automatic network selection is also stuck at channel 6. The two transmitters on the same channel are stepping on each other, causing 2.4G IoT devices to suffer. Second, there's an extra door that can be scratched: the optical modem sticker has the default WiFi password. Most of the machines installed by technicians haven't been changed, and the neighbor just taps them with the master key and gets in. I mentioned this in my anti- article about anti-anti- internet, and it's impossible to hide, because the name is printed on your optical modem's back.

start, first check whether the optical modem or WiFi is enabled and what it's calling

Don't laugh—some people really mess it up. Three steps to confirm: First, check the sticker at the bottom of the optical modem, which shows the wireless network name—the one starting with ChinaNet is it; Second, open the WiFi list on your phone, find the name starting with ChinaNet, stand next to the weak current box with a particularly strong signal, and it's secure; Third, enter 192.168.2.1, log in with the useradmin account on the sticker, and find the "WLAN" or "WiFi Settings" tabs. Inside are the 2.4G and 5G switch statuses.

a quick note: if your home list only has one WiFi name, and it's your own router name, the installer probably turned it off for you from the start. You can turn it off and don't need to read this article. If you're unsure, check the backend and check the switch status for the most stable time—it's a matter of ten seconds.

here's another zero-cost verification method, no need to go backend: find the name starting with ChinaNet in your phone's WiFi list, long-press and select "Forgot Network" (provided you're not currently connected to it). If your internet speed stabilizes in the coming days and the sofa corners stop spinning, it means it was the one that stuck before—feel free to turn it off; If nothing changes, then the problem lies elsewhere. Don't blame the light cat for now. Android users who want to see more details can open the WiFi details page and check the gateway address—the gateway is 192.168.2.1, which is the one installed on the optical modem's network; the gateway is 192.168.31.1 (Xiaomi series), which is connected to your router.

Method 1: 192.168.2.1 webpage backend is enough for useradmin

. Turning off the optical modem (ONT) WiFi without a super-admin account is much lower than changing bridging or changing LAN IPs—a regular useradmin account already has WLAN toggle permissions. After logging into 192.168.2.1, I have listed the paths of the three common models:

three points to note. First, 2.4G and 5G are two independent switches that need to be turned off. Turning off only one means half the door is closed—the phone will still touch the one that is on. This principle is the same as the on Tianyi Gateway by frequency band, which splits the dual-band structure, except that time two were renamed; this time, two were completely off. Second, the option to disable words like "enable SSID" or "wireless switch" is not to delete configurations or restore the factory product. Don't be shaky. Third, in some regions, firmware has also removed the WLAN menu from useradmin. If you can't find the relevant tabs inside, you have to log in to the telecomadmin super admin account. How to comply with the rules to get the super password the of the 10,000 scripts are all inside.

after clicking Save, the optical modem WiFi will disappear from all device lists. No need to restart the modem, and your router's network will not be affected at all. It turns out that the devices connected to it automatically disconnect and reconnect, leaving them with no choice but to go connect to your router—this is exactly the effect we want.

Method 2: Xiaoyi Butler App can be closed even while you're at the office

If you don't want to access the webpage backend, Xiaoyi Butler App can do the same. After binding the optical modem, go to the homepage and your device, go to "My WiFi" or "WiFi Settings," where you'll find the 2.4G and 5G switches. Just turn it off. The advantage of this road is that it can be operated remotely. I turned it off while slacking off at work, but when I got home, it was clean.

but be careful: some firmware versions of apps only allow changing WiFi names and passwords, and the toggle section is grayed. If you encounter gray ones, don't bother with the app; just go back to the webpage backend and check the method one, same thing.

shutdown: inventory the devices connected to the fiber modem (ONT) WiFi

This is the most important part of the entire article, and I traded my own business for it. Back when I installed surveillance cameras and vacuum cleaners, I wanted to save trouble by directly installing ChinaNet on the optical modem—the signal was close, and the password was copied down on stickers. Later, I turned off the optical modem and WiFi. Wow, the camera app went completely gray, the vacuum disappeared, Xiao Ai's speaker was deaf, and it felt like my home had been robbed. After a long search, I realized it wasn't the equipment that broke—it was their network that was gone. I went through all the routes in the offline inspection of Mijia devices, and only then did I realize: they should have been moved before shutting down.

correct order is: first inventory, then migrate, and finally close. There are two ways to take stock of the device—check the currently active devices in the "Online Devices" list of the optical modem backend, or browse each IoT device's app to see which WiFi device is connected to. Migration means re-connecting each device to your router's WiFi. For 2.4G dedicated accounts like cameras and vacuum cleaners, remember to keep your router's 2.4G on. It took me nearly forty minutes to move five pieces of equipment, which is ten times more worry-free than putting out a fire after shutting it down.

two things don't need to be transferred: IPTV set-top boxes run independent VLANs, unrelated to WiFi switches, so you can watch the TV however you want; Devices using network cables don't need to be cared about. Also, be mentally prepared: some provinces' ITMS will push the WiFi switch back in the middle of the night, which is the same as when the bridge is restored. The next morning, just glance at the switch status and if it really gets pushed back, just follow the ITMS approach—call 10,000 if needed.

two situations really don't need to turn it off—don't turn it off just for the sake of shutting it down

The first is that you don't have a dedicated router at home, and the optical modem (modem) WiFi is the only option. Turn it off and disconnect the whole family's Wi-Fi. Unless you plan to buy a router tomorrow, don't touch it. The second is using the fiber modem WiFi as a dedicated guest network—some people like to leave a separate network for visitors to connect to and isolate the main network device. This method can be retained, but first change the default password so the password on the sticker doesn't continue to work.

besides these two, for households with their own routers, turning off the fiber modem and WiFi is basically a pure profit. Wrap up with a complete order, just copy it as is:

I tested it in the corner of the sofa the day I turned it off, and the download dropped from 23MB to 290MB—phones are no longer a choice. Later, I also changed the IP modem WiFi password before turning it off—if ITMS really pushes it back, at least the default password on the sticker isn't running around naked.