# Suddenly slow sync Android to Linux (via USB tether or Wifi)
**URL:** https://forum.syncthing.net/t/suddenly-slow-sync-android-to-linux-via-usb-tether-or-wifi/15727
**Category:** Android
**Created:** [October 12, 2020, 6:31pm UTC](https://forum.syncthing.net/t/suddenly-slow-sync-android-to-linux-via-usb-tether-or-wifi/15727 "2020-10-12T18:31:21Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@nomeata](https://forum.syncthing.net/u/nomeata)
#### Post date: [October 12, 2020, 6:31pm UTC](https://forum.syncthing.net/t/suddenly-slow-sync-android-to-linux-via-usb-tether-or-wifi/15727/1 "2020-10-12T18:31:21Z")
I use syncthing to sync most of my Android phone onto my laptop. A while ago I noticed that Wifi is kinda slow in general, but I can quick back up GBs of data if I tether my laptop to my phone using USB, with download speeds of (I think) tens of MiB/s.
But today, when trying to do that, the download comes to a crawling halt. A few hundert KiB/s if I am lucky.
I am really wondering what broke. I might have upgraded syncthing a minor release or two since the last time I ran it, now at 1.10.0, and upgraded Android from version 10 to version 11. Nothing odd in either logs.
Could the latter be a cause? Is Android somehow trying to throttle the app?
It seems that going over Wifi is also slow (slower than I think it used to be).
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### Author:  [@nomeata](https://forum.syncthing.net/u/nomeata)
#### Post date: [October 12, 2020, 7:59pm UTC](https://forum.syncthing.net/t/suddenly-slow-sync-android-to-linux-via-usb-tether-or-wifi/15727/2 "2020-10-12T19:59:26Z")
Hmm, it sped up after a while, although not reliably. Maybe the app was still indexing and syncing and indexing at the same time is too slow…
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### Author:  [@system](https://forum.syncthing.net/u/system)
#### Post date: [November 11, 2020, 7:59pm UTC](https://forum.syncthing.net/t/suddenly-slow-sync-android-to-linux-via-usb-tether-or-wifi/15727/3 "2020-11-11T19:59:29Z")
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