Monday, September 07, 2020

A simple change to DLINK router if it feels a bit slow

With everyone at home and online working and playing during COVID you may have noticed that your network connection may feel a bit sluggish.  I know at times it is slow for me when I have my personal laptop, tablet, phone, work laptop running.  Wife is online too with her tablet and Chromebook.  Most days it isn't a problem for me as the connection to work is fast enough.  However there are days I have to do a lot of file transfers that slow to a crawl.  

I remember when I got the DLINK-878 router that I did an initial QoS (Quality of Service) setup for the machines, however, what the hardware we have has changed and I didn't update the QoS.  I will show where to make the change and test before and after.  The changes are not major as I have the machines running and not doing downloads (or playing games) so it doesn't impact the testing speed very much.  When I did the change on Saturday the work machine downloaded files in half the time while I was playing a MMORPG on my main laptop.

 Background:

I added the D-Link router to the Rogers modem as I needed to break up my internal network into several groups.

    • Main SSID is for myself and the wife and all of our personal devices, printers and scanners;
    • Guest SSID for anyone visiting;
    • Work SSID.  This is so that I can isolate the work machine from all other devices that are on the network and NO ONE can see the work machine;
    • All SSIDs have their own unique name and password and I scan the Rogers modem and DLINK router weekly using FING using my Android tablet.

The instructions are specific to DLINK-878, but, other models and routers should have the QoS setting.

Login Screen
 
Speed test

 Speed test
 
I ran the speed test before making changes to the QoS.
 
 
QoS Screen
 
For this I have my MX-Linux machine on Medium setting and when I rerun the test there is a minor speed improvement.
 
Second speed test

 I then moved the machine to the highest setting and ran the speed test for a third time.  It showed an improvement in speed.
 
Laptop set to QoS Highest 

Speed test 3
Speed Test 3

Your settings will probably be different, but, you can prioritize which machine gets its share of the internet connection.