Thank you for posting on the Intel® communities.
I would like to let you know that we do not have documentation to confirm if you can use Wireshark to capture packets on the 6GHz band, however, the best action to take would be to check with Wireshark for further instructions and make sure if that is possible under your system configuration.
You may find information about this matter in the following links:
Please keep in mind that this thread will no longer be monitored by Intel.
Intel Customer Support Technician