That debug log shows a successful automatic connect and then 45 minutes later a failed connect. Clearly nothing changed in CC and in calibre in that 45 minutes, which means the problem must involve something between them. Unfortunately this is a lot of stuff, including Android, MacOS, and your home network.
Given that the problem happens at work and at home, the only thing in common between those places should be the device. Is this true? If so, then we need to look for what changed on the device. Did you install anything on it a few days ago, especially anything that might use networking? If so, what happens if you uninstall it? Was the device OS upgraded in some way?
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