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Old 12-23-2025, 03:13 PM   #238
recook
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Posts: 47
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Join Date: Aug 2018
Device: kobo Nia
Question Firewall rule to fix Calibre not found

Hi,

i was for a long time a happy Kobo Uncaged user.

Since about September 2025, my Kobo Nia (Firmware 4.38.23429 of 2025-08-18) won't connect to Calibre (after several Updates now 8.16.2), saying
> Calibre not found!

Only with my Firewall UFW *disabled* it does connect.

Both devices are connected to the same WIFI net in 192.168.0.0/16, and the Calibre wireless service is active on the fixed port 9090.

I tried a rule
IN Any:Any To 192.168.0.0/16:9090 ALLOW
but no joy.

Any ideas?
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