Ghislain Posted December 12, 2020 Share Posted December 12, 2020 Hello I bought few days ago a XR500 router for its Qos management. Despite all the tests I can’t make my synology to not use all the bandwidth of my poor 14 Mbit/s as do connection (1 Mbit/s of upload) in general the downloads are done using HTTPS links. I could limit the bandwidth of the synology in DSM but it’s not my goad. I want the router to limit the synology when other devices need bandwidth only. i even tried to reserve 100% of the bandwidth to my computer. But when I try to make a Speedtest with my computer while the synology is downloading, my pc can only only use 1 Mbit/s of bandwidth. Netflix can not work well, browsing internet is slow, etc... Anyone here knows how to force synology to stop congestion of the bandwidth ? thanks Link to comment Share on other sites More sharing options...
Administrators Netduma Fraser Posted December 13, 2020 Administrators Share Posted December 13, 2020 Hey, welcome to the forum! What are your current QoS settings? Are you using Anti-Bufferbloat at all? You can use Bandwidth Allocation and disable share excess and give the Syn low bandwidth and give others higher - they will be limited to that value though. Link to comment Share on other sites More sharing options...
Ghislain Posted December 14, 2020 Author Share Posted December 14, 2020 Thanks for the answer. My current Qos settings are simple : - Firmware v 2.3.2.108 (Beta) - Qos enabled - Goodput enabled - DL/UL share excess enabled - Bandwidth allocation mode : Devices - Congestion control : Auto ( I also tried with always) - Traffic prioritization : default (only games), I also tried to add my computer, with all ports on TCP/UDP - Bandwidth allocation : 100% for the PC on which I do my speedtest (0% for the Synology Nas) - Bandwidth : 14 Mbps DL, 1 Mbps UL I want to use Share Excess. else my NAS will never be able to use full bandwidth when other devices are not using bandwidth. Link to comment Share on other sites More sharing options...
Netduma Liam Posted December 14, 2020 Share Posted December 14, 2020 2 hours ago, Ghislain said: Thanks for the answer. My current Qos settings are simple : - Firmware v 2.3.2.108 (Beta) - Qos enabled - Goodput enabled - DL/UL share excess enabled - Bandwidth allocation mode : Devices - Congestion control : Auto ( I also tried with always) - Traffic prioritization : default (only games), I also tried to add my computer, with all ports on TCP/UDP - Bandwidth allocation : 100% for the PC on which I do my speedtest (0% for the Synology Nas) - Bandwidth : 14 Mbps DL, 1 Mbps UL I want to use Share Excess. else my NAS will never be able to use full bandwidth when other devices are not using bandwidth. Just try disabling Share Excess and make sure that this is then limiting the Synology! You can then fine tune what bandwidth is allocated to the Synology after this point Link to comment Share on other sites More sharing options...
Ghislain Posted December 14, 2020 Author Share Posted December 14, 2020 In the meantime I just disabled Goodput. And now it's more or less working as expected. I don't know that this option is doing, but I saw that it should always be checked, or disabled after a request from developers.... Link to comment Share on other sites More sharing options...
Administrators Netduma Fraser Posted December 14, 2020 Administrators Share Posted December 14, 2020 2 hours ago, Ghislain said: In the meantime I just disabled Goodput. And now it's more or less working as expected. I don't know that this option is doing, but I saw that it should always be checked, or disabled after a request from developers.... That is very strange because all Goodput really does is provide a more accurate result for speedtests so I'm surprised that's working. If it is though then that is great as it shouldn't affect any devices negatively. Link to comment Share on other sites More sharing options...
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