Hi @wmicke
With your provided information, it’s not enough to find the root cause. Could you provide some more information as below questions:
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Have you ever seen the EM711 visible on your laptop yet? Or this issue (invisible issue) happens all the time, both after and before upgrading Window OS?
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What is the laptop model are you using in this issue?
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Can you have another laptop? if yes, can you please give a try for this EM7511 module to see whether it is visible?
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Do you install sierra wireless EM7511 driver from source page of Sierra Wireless?
Thanks,