Windows Desktop Sync Bandwidth Limit Issue

Nextcloud version (eg, 10.0.2): 11.02
Operating system and version (eg, Ubuntu 16.04):Ubuntu 16.04
Apache or nginx version (eg, Apache 2.4.25): Apache/2.4.18 (Ubuntu)
PHP version (eg, 5.6): PHP 7.0.15-0ubuntu0.16.04.4
Is this the first time you’ve seen this error?: yes

Can you reliably replicate it? (If so, please outline steps): yes

The issue you are facing: The download and upload bandwidth settings in the desktop sync client have no effect on the bandwidth consumed from the client to the server.
This becomes a problem when a new device is introduced and needs to perform its initial sync
The upload on my internet connection maxes out and causes other network service issues until the sync completes.

Is this a known issue or being reported for the first time? Any help would be greatly appreciated!

This should work. Can you try again with a current version of the owncloud sync-client? Background: Nextcloud client does only branding and if you want to report bugs to the developers, you should be able to reproduce them with the original owncloud version.

Alternative solution: Use module mod_ratelimit to control the bandwidth server-side.