After a full week unfortunately many of the reliability issues returned - I would get the "Connection failed. Retry/OK" message, and the phone wouldn't connect until I turned off/on the wifi on the phone. I had one instance as well where I had to do a full restart of the phone. From the limited experience it may be marginally better than before but it's hard to tell for sure. Will update to iOS 13 once it's out of beta, crossing fingers that this solves it
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