How to set up Tianyi Gateway 2.4G and 5G separately? The dual-band all-in-one switch is hidden in the third layer of the network menu. After disassembly, I installed the robot vacuum with internet access that very night

last month I bought a robot vacuum for my mother-in-law's house, but the app network setup process was impossible. The prompt was very polite: "Please confirm your phone is connected to a 2.4G network." But the WiFi you can find on her phone is just one name—the string starting with ChinaNet. Who knows if it's 2.4G or 5G. After asking a broadband installer, I found out that the Tianyi gateway provided by China Telecom defaults to "dual-band integration," broadcasting the same name for both bands, so you can choose your device. Those that can be lifted are fine, but those that can't are directly stuck at the network distribution stage. This article records the complete process of splitting Tianyi Gateway's 2.4G and 5G into two different names, accidentally flipping through two different menus, and reviewing the paths for all three models.

clarify first: what is dual-band integration, and who needs to disassemble it

Tianyi Gateway (optical modem router all-in-one) WiFi has two frequency bands: 2.4G is good for wall penetration but slow; 5G is fast, but wall penetration is poor. dual-band integration means broadcasting two bands under the same name for . Once the phone connects, it chooses the band itself—whichever signal works best, and it sounds quite smart.

smart devices don't fall for this. The robot vacuum, camera, smart socket, and door lock all use small WiFi modules costing just over ten yuan, with hardware only 2.4G. When configuring the network, the app will have the phone send the password to the device first. If the phone is connected to 5G and the device is not on the same frequency band, network setup fails nine out of ten times. That's the reason for the 'Please connect to 2.4G network' prompt—but there's only one name. How can you let your phone connect to 2.4G?

so if you have a smart device at home that only supports 2.4G, the dual-band integration requires disassembly: split into two names: "Home WiFi" and "Home WiFi-5G"—smart devices connect to the former, phones and computers connect to the latter, each going their own way without causing trouble. If you don't have such equipment at home, just use your phone, computer, or TV—it's pretty good and you don't have to fuss over it. 2. What do 4G and 5G excel at, and how do you choose the right signal? I have written about this in detail in the on choosing bands, but I won't elaborate here.

Step

: Go to the 192.168.2.1 backend, and the useradmin file is enough

disabling dual-frequency bands, you don't need a super password—here's some good news to mention upfront. Changing WiFi names or splitting bands is a "surface setting" that grants permissions to useradmin regular accounts on stickers, unlike telecomadmin when changing bridges. I didn't know about the first night, and I spent half an hour messing with my account following the approach from Super Password article—purely a detour.

operation order: Connect your phone to the Tianyi gateway's WiFi (the one to be disassembled), enter 192.168.2.1 in the browser's address bar, username useradmin, and the password is the one-device-one-code printed on the back of the optical modem. Some older machines have the address 192.168.1.1. If you can't log in, don't try too hard. If you're unsure which optical modem your home owns, first check the address numbers of the three devices the article to confirm the address, then check the entry in the order can't open the .

a small detail: when logging in, the password box is case-sensitive. If the code on the sticker contains letters, copy them exactly as they are. Check I and 1, O and 0 before typing. If you input the wrong three times, some models will lock for ten minutes—the more urgent you are, the slower it gets.

Step 2: Find the dual-band integrated switch; the menus for the three models all look different

This is the most likely step in the whole process to go wrong—I got stuck here for over half an hour. The customized firmware menus vary across different telecom provinces. I've handled three machines on hand, and I've listed the paths accordingly:

commonality is that they are the next two layers of the "Network" or "WiFi Settings" menu, not on the homepage. When searching, look for terms like "WLAN configuration" and "basic settings"—just click in and you'll find them.

turn off the switch, tap Save, and the WiFi on the optical modem will disconnect and reconnect—at this point, the phone will disconnect. Don't panic, it's not broken. Reconnect (you may need to enter a password), then go to the backend. You'll see that both 2.4G and 5G have one SSID name and can be changed separately.

if the switch is gray and doesn't move, it means the firmware has locked this option, so you can't change it for regular accounts. Two options: one is to use the Xiaoyi Manager app to change it. The WiFi permissions in the app are not exactly the same as those in the web backend. In some provinces, the app can disconnect the webpage but cannot. How to use the app can be seen in my previous article Xiaoyi Manager; Second, call 10,000 to have customer service remotely issue the configuration, saying, "My smart device at home can't connect to the internet, so you need to turn off the dual-band integration." The technician can fix it remotely in just a few minutes without any charge.

Step 3: There are three rules for naming. I was foolish the first time

After separating

, each band is given a new name. I'll list out the fools I've made for you:

rule one: do not use Chinese for the name of 2.4G. I tried playing 'Mother-in-law's Web' for fun, but the robot vacuum app's app couldn't scan this SSID—those small modules couldn't recognize the Chinese code. Honestly use alphanumeric numbers, like jiawifi.

rule two: add a suffix to the 5G name to distinguish it. like jiawifi-5G, you can instantly tell which is which. If you don't add them, the two names look a bit similar, and the family doesn't even know which one is connected.

rule three: the name should not exceed 20 characters. is too long, some devices don't display everything, the search list is cut off as the same, and you can't separate them.

password can be set to the same frequency band, saving you from memorizing two sets. Check the password carefully: pure letters and numbers are the most stable, avoid spaces or rare symbols. Some smart devices fail to shake passwords with special characters—this pitfall and many other reasons for network configuration failures. network configuration , there's a checklist list. Even after disassembling the bands, it still won't connect, so I checked that chart again.

Tearing It Up Is Not the End: Three Follow-Up Pits Lined Up One by One

pitfall one: old equipment is hard to find. after disassembling the dual-band integration, all devices with the merged name would disconnect (the names changed), and every phone, TV, and tablet at home had to be reconnected. This is the normal price, not that it's broken. When connecting, remember: old laptops and old TVs only support 2.4G, so it's normal that the -5G name isn't listed here.

pit two: don't use the automatic 2.4G channel. after unlocking, some firmware sets the default channel to "Auto" and may jump to channel 12 or 13—some imported old devices' WiFi modules only recognize channels 1 to 11, causing another "find others find you." In the advanced settings for 2.4G, manually fix the channel at 1, 6, or 11, and pick one of the three that neighbors use the least. How do you check which channel your neighbor occupies, channel interference article If you have a mobile phone, you can check directly.

pitfall three: after removing the 5G signal, it actually feels weaker. is not an illusion, nor is it damaged by demolition. When the dual-band is merged, the phone is left on the nearest band by 'merged broadcast.' If the phone still sticks to the 5G name after being split, the signal drops quickly after being separated by a wall. This is the physical characteristic of 5G; wall penetration is not as good as 2.4G. For remote devices, just manually switch back to the 2.4G name. The reason for separating the two names is this: choose for yourself, and pick clearly.

What's going on? I advise you not to mess with the light mode WiFi

To be honest,

honestly: disassembling dual-band is only a lifesaver, the WiFi that comes with the modem is already a 'usable' level . The antenna only has those two built-in pieces, carrying about ten units, and the processor still has to do dial-up work simultaneously. After my mother-in-law's device was disassembled and connected to the internet, after a while the devices multiplied, it still lags.

plan to use it long-term. The proper approach is to replace the optical modem with a bridge, turn off WiFi, and leave all dial-up and WiFi to the router you bought — the router's WiFi lags far behind the optical modem in terms of signal, data usage, and roaming. Changing the bridge requires a super password, the process and pitfalls. I covered the entire super password article; After changing the bridge, remember that IPTV might need to be re-configured to fix it. The solution lies in IPTV article.

Wrap up with a clear order, copy it without pitfalls:

mother-in-law's HS8145V5, the robot vacuum was successfully connected to the network on the same night after disabling the band, and the next day she added the camera as well. Before starting, disabling the band sounds mysterious, but actually doing it takes ten minutes. The hard part is never the operation, but the switch hidden in the third-level menu that you don't know where it is.