Authentication error

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Level 1b
Trying to connect to the wifi on my new nbn modem but it says authentication error? There is zero tec support as the phone says to use online chat, did and waited ages to get on to someone, then they claimed to not be getting my messages and ended the chat. This is beyong frustrating!!
1 REPLY 1
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Level 8

Are you using the network name and password on the label on the router?