1. Reboot and stable power
Reboot your fibre box, router and wifi access point(s) and make sure they have stable power. See First Steps to Fix your Fibre.
2. Confirm the status lights on your fibre box are normal
Make sure your fibre box shows that you have a connection with the upstream network. Check the LAN light, if you don’t have any legacy 100Mbps devices make sure that everything is connecting at Gigabit speed. See Lights on your Fibre Box.
Atomic will have to do this step for you by checking the fibre network portals. You’ll have to open a support ticket. See How to Report a Problem.
Do a basic web browser based speed test when connected directly to the fibre ONT/CPE (skip the router and wifi). See First Steps to Fix your Fibre. If you have a fast line also see Gigabit Speed Tests.
Ping the gateway IP while connected directly to the fibre ONT/CPE. Usually about 1,000 pings are enough. There should be no packet loss. See Troubleshooting with Ping.
Ping the gateway IP while connected directly to the fibre ONT/CPE. Send large ping packets and set the ‘don’t fragment’ bit. See Troubleshooting with Ping.
These tests are useful if you know the IP address of a site or service which has slow speeds or packet loss. See Troubleshooting with MTR and Pingplotter.
This is the gold standard for testing your line health. You can also use iPerf to check TCP speeds. We have iPerf servers in Cape Town, Joburg and London. See Test your Fibre Line Health with iPerf.
If problems are intermittent and you need to monitor a fibre line over a few hours, days or weeks. We can set this up from our monitoring server if you open a support ticket. See How to Report a Problem.
Mostly for Linux users who have fast lines, but can also help with troubleshooting international speed issues. See Test your Fibre Line Health with iPerf.