AFAIK hiding the SSID only changes behaviour for initial connection as one has to know the SSID to be able to connect instead of just choosing from the list. Also the WiFi will at some point confirm its network name to devices who would try to connect to it which could be intercepted by a third party that would try to connect to it. In my opinion hiding the SSID is just a tiny security by obscurity measure that only protects from everyday users. Here is some interesting read about the situation with some examples: https://www.acrylicwifi.com/en/blog/hidden-ssid-wifi-how-to-know-name-of-network-without-ssid/

Let me answer my question per the suggestion of Andrew instead of deleting it. The solution I found: Tap Advanced options when adding a network Select Yes for Hidden network I think I missed the saved network when I posted my question. The network was saved on this tablet but it was on a separate list at the bottom:

Check https://f-droid.org/en/packages/com.kgurgul.cpuinfo/ 's Hardware tab, item "WiFi 5Ghz".

I assume you refer to a personal mobile hotspot rather than a router. You could try Settings > Connections > Mobile Hotspot> changing the AP band to 5.0Ghz.

Any Device has to remember wifi credentials because if the signal fluctuates/disconnects, they need to reconnect. It would be far more annoying to enter credentials every time the signal is lost than to "Forget" once when you don't need it.

I fixed this problem with the instructions written by Darren https://www.technipages.com/fix-google-for-android-shows-as-offline?unapproved=1042149&moderation-hash=c61959b8bfe3e4ed38cf51c03bd8cd25#comment-1042149 : Clearing Google Play Store Settings -> Apps & notifications Google Play services -> Storage Clear Cache & Clear Storage Uninstalling Google Play Updates Settings -> Apps & notifications Google Play services 3 Dots (Top-right corner) Uninstall Updates Afterwards restart the phone and check if the problem is solved!

Android has three MAC modes: Persistent MAC randomization This should be the default mode. For each Wifi a new random MAC address is generated. But if you reconnect to an already known Wifi the same random MAC address is used. Non-persistent MAC randomization In this mode for each Wifi a new random MAC address is generated and this MAC address only persists unless you disconnect from the Wifi. If you reconnect to a known Wifi again a new MAC address is generated. No randomization (device MAC) Disables all randomization for the specified Wifi, only the device MAC is used. From your description I would assume that on your device non-persistent MAC randomization is active. As you have seen persitent randomization and device MAC can be activated in Wifi menu, but the non-persistent randomization is missing there. You can find the non-persistent randomization option in the Developer menu. Most likely this option is active on your device and thus overrides all the other settings you do in Wifi menu.

You can use Servers Ultimate (com.icecoldapps.serversultimate) from Ice Cold Apps to ran VPN Server on your Android device. But it has limitations: VNC Server: doesn’t work on most devices. ARM based: Caddy, VPN, Port forward, MySQL monitor, Nginx, Traceroute Root needed: Port forwarder, VNC, VPN, SMB Native Permission SMS: start/stop rules Permission coarse location: wifi selector tool

I would recommend to you to totally shut down the phone. Shutting it down powers off a lot components which is like a hard reset. Usually one would expect that there is no difference between shutting down a phone and power it on again to a reboot but it seems that unser some rare conditions some chips can enter a state that is not affected by a reboot. Only powering of the chip can solve such problems. I had this once with the GPS chip in my phone. No matter what I did it wasn't working properly. Only shutting down the phone, wait some seconds and then start it again restored it's functionality.

There are multiple potential problems that prevent the phone from seeing your external drive: The phone has to support USB OTG at all. I would recommend to test that using an simple USB stick. Power - If the external drive is an HDD then most likely the power provided by the phone via USB is too low and you need to play an active powered USB hub in between. The file-system used on the external drive: The file-systems supported by all Android systems is very small when it comes to file-systems usually used on external drives. If your PC is running Windows, then the external drive most likely uses NTFS, exFAT or FAT32. Only the latter is supported by all Android devices, exFAT is supported by some devices and NTFS is only supported by a very limited number of devices. If you can see the external drive data in an app on the device you only have to find out the mount point. The fastest way is to list all mount points by executing mount in the shell via adb. On my devices OTG devices are mounted in a directory within /mnt/media_rw/ for example /mnt/media_rw/9E00-B16F. Unfortunately the directory /mnt/media_rw/ is not accessible via adb on my device.

Ok, I have tried switch mode with access point, same results. I disabled IPv6 option in the secondary router and it works. I guess android 8.0.0 doesn't support IPv6. Not sure why the router still honors IPv6 since it's in bridge mode or switch mode. Again other devices always work. My assumption is this android somehow honors the IPv6 option in the secondary router even though the router is not in router mode.

Well this is what worked. For GoPro: Phone: Clear all active apps and clear the app's cache. Phone: "Forget" the camera on the app, and also forget the WiFi network. Phone: Turn off data connection, leave only wi-fi and Bluetooth. Turn on the camera, WiFi should be enabled automatically. Phone: connect to the WiFi network normally, through the phone settings. Phone: open app, connection should work. For Image Sync: Phone: Clear the apps' cache AND local data. Phone: Forget the camera's WiFi network. Phone: Turn off data connection, leave only wi-fi and Bluetooth. Turn on the camera and enable its WiFi. Phone: connect to the WiFi network normally, through the phone settings. Phone: Open the app. It will ask you to accept terms and conditions and some permissions.

The issue got fixed, the issue was with the ROM. I had flashed a stock ROM from ASUS' website a month or so ago and due to that even factory resetting didn't help. I flashed a new Pixel Experience ROM on it by unlocking the bootloader and it fixed the issue. I'm now getting full speeds, 50 Mbps+

All you have to do is to disable Band Steering, since otherwise the router automatically detects devices on the 5 GHz range and automatically turns off the 2.4 GHz radio. Case closed bangs hammer

According to the Android documentation the https://source.android.com/devices/tech/connect/wifi-mac-randomization-behavior#persistent is not stored anywhere. Instead the "random MAC address" is generated every time you connect to the Wifi. This generation bases on the Wifi network parameters: Android generates a persistent randomized MAC address based on the parameters of the network profile including SSID, security type, or FQDN (for Passpoint networks). And I assume that additionally some secret factor that is unique to your device is included into the calculation, otherwise every Android device would generate the same random MAC address for the same network. Not sure what they actually use, may be ANDROID_ID or some random ~128 bit data stored somewhere in your user profile. In such situations typically an HMAC algorithm is used to generate pseudorandom output that can then be used for the 46 bits of the MAC that are randomized. This makes it next to impossible to determine the used secret part based on the randomized MAC address and to calculate MAC addresses you would use in other networks. Note that this answer is only about AOSP. Android manufacturer may change the randomization. According to a study on https://petsymposium.org/2021/files/papers/issue3/popets-2021-0042.pdf Motorola e.g. implements a custom MAC randomization scheme (not the 46bit scheme described in AOSP).

No, there isn't any downside and you should set it to unmetered. You certainly wouldn't like OTA updates or large downloads to be throttled or stopped by setting it as metered. https://support.google.com/android/answer/9654714?hl=en#zippy=%2Ccontrol-data-use-with-metered-wi-fi If your network has a data limit, you can set your Wi-Fi as metered. When your network is metered, you have more control over how much data your phone uses through downloads and other apps.

that's limitation from PowerFTP. before buying ask https://powerftp.medialux.app if pro version will increase speed (not sure about this)

you must visit the url of captive portal manually by typing in address bar of your browser

To accomplish what you want, you can install the app https://f-droid.org/en/packages/android.jonas.fakestandby/ . It is a free open-source application. Fake Standby will turn off your screen while keeping apps running. This will allow you to listen to audio (podcasts, for example) without draining your battery so much. I've used it many times, and it has worked well for me.

I replace 5555 port with other number to solve the issue.