App doesn't show folder-share requests from other devices, except in Web GUI

Description of the issue

If another device (like a PC) tries to share a folder with Syncthing-Fork on Android, the app doesn’t prompt the user that the folder is available for download. You only receive the prompt once you open the Web GUI (which doesn’t work on my tablet’s LineageOS without GApps, until I install Bromite WebView).

Reproducer

• Connect Syncthing-Fork on Android, and Syncthing on a PC.
• On the PC, click a folder, click Edit, and on the Sharing tab, check Syncthing-Fork.
• On Android, wait to receive the folder. It’ll never arrive.

Version Information

App Version: 1.8.0.3
Syncthing Version: v1.8.0
Android Version: Android 9 (LineageOS custom ROM)
Device manufacturer: Samsung
Device model: SM-T510

Device platform info

[ro.product.board]: [universal7885]
[ro.product.brand]: [Android]
[ro.product.cpu.abi]: [armeabi-v7a]
[ro.product.cpu.abi2]: [armeabi]
[ro.product.cpu.abilist]: [armeabi-v7a,armeabi]
[ro.product.cpu.abilist32]: [armeabi-v7a,armeabi]
[ro.product.cpu.abilist64]: []
[ro.product.device]: [phhgsi_a64_ab]
[ro.product.first_api_level]: [28]
[ro.product.locale]: [en-US]
[ro.product.manufacturer]: [unknown]
[ro.product.model]: [Phh-Treble vanilla]
[ro.product.name]: [treble_a64_bvN]
[ro.product.vendor.brand]: [samsung]
[ro.product.vendor.device]: [gta3xlwifi]
[ro.product.vendor.manufacturer]: [samsung]
[ro.product.vendor.model]: [SM-T510]
[ro.product.vendor.name]: [gta3xlwifixx]

Android Log

https://gist.githubusercontent.com/nyanpasu64/a8eb8b8ff0abbc13aafbf49761dbd8e6/raw/79b253a43c4801e5a96666c7cf071d0e7c85d3af/syncthing-android%2520logcat

The relevant line is here:

2020-08-28 06:50:10.379 18501-18545/com.github.catfriend1.syncthingandroid I/SyncthingNativeCode: [COKI3] INFO: Unexpected folder “ebooks” (7hcwu-pzhhi) sent from device “HCFGYJX-4NRX73J-PSS6UHS-IPEUZVG-MXUK6YN-O7ZLSCB-NZGZQML-J4ZYLQV”; ensure that the folder exists and that this device is selected under “Share With” in the folder configuration.

When I open the web GUI, I get the following logcat without anything interesting: https://gist.githubusercontent.com/nyanpasu64/a8eb8b8ff0abbc13aafbf49761dbd8e6/raw/33e73e62558ce0907cc71aafb55b2f2b947ec2a3/open%2520web%2520gui

[Pfeil]

Sorry I must have overseen that setting. This worked. Thanks 😃

[Catfriend1]

ok, the point is, “Internet global” discovery takes a long time to connect my devices when I try this here. maybe local connection or static ip is faster.