Mobile phone optical modem background 192.168.2.1 , five things not to turn on the computer

My optical modem has been converted to a bridge connection. One night, I had a seizure while using the Internet. I took out my mobile phone and tried to log in. 192.168.2.1 With my eyesight failing, I scrolled through the browser for a long time, and the page turned completely white. At that time, I really thought that the backend of optical modem was broken, and I almost pressed reset. It took me ten minutes to figure it out - the phone was connected to the router's WiFi, and the address it got was 31. Switch the WiFi to optical modem's own ChinaNet and enter the address in seconds.

Two weeks later, I went to my cousin’s house to help her change the WiFi name. It was still on this phone, and even her router’s WiFi turned on at 2.1. The same mobile phone, the same browser, two lives, the difference is just one sentence: Her home uses optical modem dialing, and mine uses optical modem bridging. . Once you understand this, you will be able to follow all the rules for using your phone to log in to the cat.

Set the rules first: The mobile phone must be on the same network segment as optical modem

The backend of the router is not so particular, even whose WiFi goes into whose backend. optical modem has an additional structural problem of "who is dialing?" The difference between bridged and routed modes I have written specifically, and here I only talk about how to judge using mobile phones.

There is only one easiest way: Connect your phone to optical modem’s own WiFi , the name usually starts with ChinaNet-, and the password is printed on the optical modem sticker. This website is managed by optical modem himself, and you can 100% access the backend if you connect to it.

There is an episode with Lianguangmao WiFi. Get vaccinated first.: After connecting, the top of the phone may display "Cannot access the Internet." Don't panic or disconnect. The WiFi of optical modem is originally used for you to enter the backend. Whether your mobile phone has an external network and whether you log in to the backend are two different things. You can still enter the address by typing in the address. Whether you can connect to the router's WiFi depends on the structure.

If you are too lazy to keep a watch, just remember a judgment action: In the mobile WiFi details, look at the "Gateway" column. For Android, it's called Gateway. For Apple, click the exclamation mark to see "Router". show 192.168.2.1 (or the address on the sticker) to enter ； show 192.168.31.1 , 192.168.0.1 This means that you are on the router's territory, so switch to the optical modem's WiFi.

There is another dead end: optical modem changed the bridge connection, WiFi was turned off again, and the mobile phone could not even find the door. In this case, the static IP on the mobile phone can be squeezed in, but the operation is troublesome. Retrieve the static IP method of the background after bridging I have written that for ordinary people at this stage, it is recommended to turn on the computer directly. It is easiest to plug the network cable into the LAN port of the optical modem.

Address and password, all on the bare cat butt sticker

Even after connecting to the Internet, there is no need to guess the remaining two things, just turn over the optical modem and look at the stickers.

In the address column, most provinces print 192.168.2.1 , also printed 192.168.1.1 Yes, there is also a seal 192.168.1.1:8080 With ports. Don’t memorize what is said on the Internet. Whatever is written on the sticker, what do you type? . When typing, put the http:// prefix and enter all http://192.168.2.1 ——Mobile browsers like to secretly upgrade the address to https more than computers. The backend of optical modem basically only has http. If it is upgraded, it will cause a white screen or a certificate error. The one where you can access the Internet but can’t get in I have explained this principle in detail.

Mobile phone keyboards are hardest hit. The number 1 is typed into the letter l, and 0 is typed into O. The difference is basically invisible to the naked eye. ； Also, after typing half of the address, the input method jumped to the search word, and pressing Enter entered the search engine, not the backend. Make sure that what appears on the keyboard is "Go" or "Open", not "Search".

The account password is also on the sticker. The account useradmin, the password is in the "Default terminal configuration password" or "User password" line, one code for each machine. The lines on the sticker are printed like ants. I moved my phone closer to take a photo and zoomed in with two fingers. It was better than squinting. ； The optical modem is hung in a weak current box, so taking photos is even more necessary. The sticker is soaked, torn, and the password is locked until it is locked. Let’s go. Useradmin password retrieval article , the five roads are arranged according to cost. To carry out such a big task as bridging, telecomadmin is required to supervise. Useradmin is enough to check the status and change WiFi on a daily basis.

Once inside, screen horizontally first: Five things you can do with your mobile phone

The page of optical modem is designed for computers. The vertical screen is squeezed into a ball, and it stretches out immediately when turned horizontally. The menu is usually on the third level of the "Network" and "Status" columns. Use two fingers to zoom, don't expect it to adapt.

It can do more things than you imagine, here are five things I use frequently:

One is to look at light decay. 「Find "Received Optical Power" in "Status" → "Device Information" → "Network Side Information". -8 to -27dBm is considered healthy , if it's -27, you should pay more attention. If it's over -30, don't bother yourself and directly report it for repair. If the Internet speed is fast or slow, check this number first. It is more effective than restarting. Grading and self-rescue of light failure Completely written.

The second is to change the WiFi name and password. 「Network" → "WLAN Settings", two boxes for SSID name and WPA pre-shared key. Fill in the same password for 2.4G and 5G. Please follow the steps The article about changing WiFi password on optical modem three steps.

The third is to see who is connected to the Internet. 「There is a list of WLAN users in "User Side Information". A strange MAC that is still online at three in the morning will be kicked offline and blacklisted. The whole process of kicking people at Tianyi Gateway Can match the number.

The fourth is to turn off optical modem WiFi. If you have a serious router at home, the 2.4G optical modem is a source of interference. The article about Guangguangmao WiFi In actual testing, the network speed can increase exponentially after turning it off. Move smart devices away before shutting down, otherwise the entire house will lose IoT connectivity.

The fifth is to restart the optical modem. 「There is a restart button in "Management" or "System Tools", which is more convenient than unplugging and less likely to damage the registration status.

Butler Xiaoyi can replace half of it, but cannot replace the other half.

There is actually a second way on the mobile phone: Xiaoyi Guanjia App . The four daily tasks of changing WiFi, kicking the device, restarting, and one-click detection can be completed in two clicks on the App, and the page looks good.

But there are real places that the app can’t reach. It only gives a conclusion of "normal/abnormal" for light failure, but does not give a specific reading. If you want to know whether it is -18 or -26, to decide whether to report for repair, you have to go back to the web backend. The WAN connection table, LAN port IP, and port mapping are deep-water areas that cannot be touched by the App.

There is also a reverse scene which is quite interesting.: The app shows that optical modem is offline, but the web background can still be accessed. The app uses the cloud and the account, and the web backend is directly connected locally. As long as your phone is in optical modem's network, the cloud will not stop you. That time at my mom's house, the app was all grayed out. I just connected to her optical modem's WiFi and looked at the lights from the background of the web page. The article about helping parents manage the Internet remotely Memorized the entire journey.

By the way, talk about borders to death: The web backend only recognizes local files. When you are at work or on the road, your mobile phone has data enabled. 192.168.2.1 It is absolutely impossible to get in. This is not a malfunction, but the local address does not go out in the first place. If you want to remotely monitor the cat at home, the only way is Xiaoyi Guanjia. Therefore, when installing the network for your parents' home, the app can be easily tied up, which can save you a lot of errands at critical moments.

These three things, turn on the computer honestly

Being able to log into your mobile phone does not mean you can do everything. I tried three things on my mobile phone, but they all failed. Now I always turn on my computer.

Copy the WAN connection table and import the configuration file before changing the bridge. Dozens of lines in the table, key information such as VLAN number and bound port are dazzling to see on the mobile phone screen. If you copy a wrong number, the screen will go black after changing the IPTV bridge. The exported conf file falls in the download directory of the mobile phone, and it is difficult to find it again. Configuration backup article The entire process is designed by computer.

Port mapping. The entrance is at the telecomadmin super-management layer. There are four fields: external port, internal port, IP, and protocol. One of them was filled in incorrectly on the mobile phone. I went back and checked for a long time, but I didn’t know what was wrong. The complete method of port mapping It's still comfortable to take photos on the computer.

Change the IP of the optical modem LAN port. I really don’t dare to do this on a mobile phone - the gateway is filled in incorrectly and the connection is lost on the spot. The computer can still plug in a network cable and set a static IP to save itself, but the mobile phone has no way to save itself. Things to note when changing the LAN port IP For those pitfalls, every one of them will be enlarged on the mobile phone.

Make up one: In the reset wizard after factory reset, you need to fill in the broadband account and password. The pits of l and 1, O and 0 are magnified three times on the mobile phone keyboard. This task is also left to the computer.

ending: What kind of guy should I use?

The order is also arranged for you.: Connect to the network (Lianguangmao ChinaNet is the most stable) → Flip over the sticker to get the address and password → Type in the full http:// prefix → Log in as useradmin → Go in and check the status page for light failure. After five steps, the optical modem is like a transparent machine in your hand. You can tell at a glance whether it is broken, who is rubbing it, and whether the light is enough.