Question
What if I recently changed my phone number associated with my Steam account? Could that cause this error?
Asked by: USER9839
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105 Answers
Answer (105)
Yes, a recent phone number change can definitely cause this error. Steam needs time to propagate the new phone number across its systems. Allow up to 24-48 hours for the change to fully take effect. During this period, you might experience authentication issues. If it persists beyond that timeframe, contact Steam Support.