February 1st, 2019, 3:18 am
Open browser and in the URL type either 192.168.0.1 or 192.168.1.1.
One of those 2 will open up access to your router settings, from there you just log in.
Pass and username will in most cases be the same, usually admin/admin or name of your ISP (example: telekom/telekom) if both of those combinations are not working just use the one you've set.
Then you just search through the GUI and find wireless settings, play with it a bit until you find blacklist section.
Can't tell you the exact path to there because every ISP has its on GUI.
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GUI - Graphical User Interface.
ISP - Internet Service Provider