Does it happen on 1 device only or on all the devices ?
If its on all the devices then try this
During one of those outages, open a dos box and try to ping 184.108.40.206
windows key + r > in the box that pops up, type cmd and press enter
In the black box type ping 220.127.116.11 and press enter
If you get replies, then its a DNS server issue.
In that case i would suggest putting Google's dns servers into your computer (or better, in your router so all devices connected to it use google dns) https://www.techworm.net/2016/08/change ... peeds.html
If its on 1 device only, check its cable to the modem or try to reset tcp/iphttps://iihelp.iinet.net.au/Resetting_TCP/IP_to_Default
Also if its a issue between your device and the router, during the outage try to reach the modem
(It should be at http://192.168.1.1
sometimes at http://192.168.1.254
If you can not reach the modem during the outage, check its lights, restart it and try again.
If you still can not reach the modem, it would indicate a problem between the device and the modem.
(are you using a cable or wifi to connect to the modem? )
You could also enter the modem to see if there is anything in the log, but bit more complicated..
Normally your modem can be found at http://192.168.1.1
(the username and password are on the sticker on the modem)
Depending on the type of modem, you should get a menu.
In the new modems you can find it under "settings" (top right) and then on the left side in the menu bar
In the old modems its in "maintenance" if i remember right..
Sorry i do not have a modem handy to make some screenshots for you
Just search for "log" in the menu structure.
The log could tell you if and what happens during a outage