Wifi setup Dosn't show up - Redmi Note 9 Pro (International Model) General and

Hi everyone, i recently bought a Redmi Note 9 Pro for my wife,
i connect her phone to wifi/router without any problem,
after few hours passed without working with phone, suddenly in wifi setting our wifi/router setup doesn't show up and i can't do anything for solve the problem.
note: my wifi/router setup is fine and works with any phone and laptops.
the phone in particular just won't show my wifi/router setup and i realize it shows my mobile hotspot and some neighbours as well; for solving this i factory reset my wifi/router and magically it was discoverable again for the phone but after couple of hours the same problem occur
my modem is : ZyXEL DEL1201-T10A
please help me

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Hi All,
I am trying to share my laptops internet connection with my Defy via a virtual miniport adapter(using a program called connectify)...my phone gets connected perfectly and I am able to surf the net on my phone..but only for a short time. After a while if I just let the phone be on standby for a while, it loses the internet connectivity. It remains connected to the hotspot(on my pc) but somehow there is no internet on the phone anymore. However if I turn off the wifi on my Defy and put it back again, the internet is back. I have tried almost everything but nothing seems to work. Initially i thought the problem might be with the connectify software on my system so tried using other softwares such as virtual router intel mywifi technology etc. I even tried to create a virtual wifi miniport manually from the command line but same problem everytime. I tried to change the wifi sleeo policy in my phone to never and that did not help too. I am running stock Froyo on my Defy. Sometimes when I turn off wifi and turn it back on it wont even connect to the access point, keeps showing scanning...connecting...scanning...connecting...then finally disconnected. I just cant understand what is wrong. If someone can throw some light on this...it would be really helpful, its almost 20 days since I am breaking my head over this.
Thanks
this might help
Install connectify and select wifi security mode as Ad-Hoc,WEP,this worked for me the defy sometimes seems to have a problem with WPA2.

[Q] WiFi connectivity issue

I have been using Note 2 N7100 running 4.1.1 for a week now but only a couple of days ago started experiencing WiFi connectivity issue at home. The problem I have is it would lose Internet connection and then disconnects from my wifi router. When I opened the wifi menu it says my router is not in range. Turned off wifi and then on again and it connected just fine. However, after a while I lose Internet connection again and then router connection as well. In addition, my PC and other mobile devices started having connection issues. So, I restart my router and everything seems to work normal again until I turn on wifi on my Note 2. The problem reoccured again until I decided to turn off wifi on my Note 2 and so far my wifi connection is stable. I did try to use static IP and for a moment it seemed to work fine yesterday but today it messed up again right after I got home and turned on wifi on my Note 2. I also reset my router to factory setting yesterday and I don't want to reset every day.
I remembered that I did a software update at work on my Note 2 two days ago but it's an update from Samsung. I forgot what the update was for. Is there any chance to undo this update just in case it caused the wifi problem but without having to root the phone?
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SM-T520 Wifi issue

Hi, I've tried all the troubleshooting steps on how to fix wifi connection but it seems there's no luck.
I've already change the firmware but still no connection.
The problem is, I can connect to a wifi but it has no connection. It will only "saved,secured" and that's all.
Anyone can help?
Same issue here.
I'm starting to think that the eletronics trash can is the solution...
My Samsung Galaxy T-520 detects all Wi-Fi networks, but it doesn't connect to any. The status shows "saved, secured", but it fails to connect. I tried everything, switching on/off passpoints, bluetooth and whatever, even factory resets (twice). I also tried to start the device without the Google account, skipping everything. I also tried a cell phone access point, it's all useless. All my other devices work, so it's not the router. Maybe it's a hardware problem. It suddenly stopped working

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I have been experiencing an issue with my Pixel 2 XL. I just got the phone this week. I am on the latest Oreo 8.1 with February security patch. My phone is able to detect all other wifi around and mobile hotspot that i am setting with another phone easily but not my pocket wifi which is the one i have and using. My previous phone was an iPhone X and it had no issue detecting it. Although, once it's connected, it will stay connected but once i turned off the the wifi on my phone then turn it back on again, it will be so hard to be able to connect again since it is not recognizing it and not reconnecting to it automatically. It's like it will never happen again despite already being in the "Saved Networks". I have tried rebooting my phone. I have tried resetting the connectivity settings on my phone. I have tried factory resetting my phone which erases all data and setting up from scratch. I have tried to reboot the pocket wifi. I have tried to factory reset the pocket wifi. I have tried to use another pocket wifi. The issue is still there. The phone cannot detect the wifi easily like all other wifi that it does. I need to resolve this issue as the one that it hardly detects was my own pocket wifi which i am using everyday. All other phone can connect to it except my Pixel 2 XL. Unfortunately, I do not know anyone around with a Pixel 2/2 XL to check if the issue will also happen in their device.
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Can't share Data from Android device using bluetooth tethering

Hi folks,
I've got my Xiaomi Mi 9 SE (Global Version) two weeks ago, and I'm very happy with it. There is only one problem:
I can't share my Data Connection via Bluetooth! ..
Neither with my car and its bluetooth speakerphone, nor with my Smartwatch, I can't get managed to share the connection.
So the Bluetooth connection itself is up and running without any problems! Only the data connection is not shared. The car shows me no signal (general network), and the SmartWatch does not get a connection to the Internet.
I looked up the Tutorial here in the old en.miui-Thread but I don't get the "Enable Internet Access"-Button in the paired Device Menu (part#6/7 in the Tutorial). I've activated the Bluetooth Tethering mentioned in part#5..
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I've re-paired the devices multiple times. I also have done a factory Reset with Phone and SmartWatch. The problem occured with original Global Rom, and still occures with latest xiaomi.EU Rom.
Hope you can help me..
Best Regards
Some news: Occasionally it works. Sometimes I can access the Internet with my Smartwatch, which is connected to my smartphone via Bluetooth. But really rather rarely. And even without me changing anything. I don't even touch the smartphone yet, and suddenly I have Internet access on the Smartwatch, 2 minutes later but then again no more. Damn weird.
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