thanks for replying both.
If resetted it multiple times back to factory settings. I have a modem from Sagemcom and a router from TP-Link. Ive only fixed some IP’s for mobiles to use the smart presence app. Nothing more.
I changed the bot token once.
This morning suddenly i received messages from the bot. (I made a flow somewhere with "every 3 seconds send me TEST message via telegram. It gave a TEST message 70 times in 1 minute and then stopped again.
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How do i do the HTTPS suggestion?