Neu: Die KI-Firewall überwacht die gesamte Plattform und erklärt jeden Vorfall in einfachen Worten. So funktioniert es

Reply To: PubSubClient connect() fails with rc=2 when I build the client ID from String objects

I had something like this, added a delay(500) before connect and it went away.

Ask me about 4–20 mA.
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