Cannot connect to obdlink cx

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https://abrp.upvoty.com/b/report-a-bug/cannot-connect-to-obdlink-cx/
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I have a 2023 Mustang Mach-E GT, an obdlink cx, and a pixel 7 phone. Trying to connect ABRP on my phone to the obdlink cx, the final step fails. My husband is able to connect his pixel 6a to this obdlink cx without problem.