your message is old, so probably you solved your issues already. however, just in case this answer can still be valuable, do you have an MX64 or MX64W ? If MX64W, then its wireless interface can be double wireless connection compared to the wireless router. About your MR42, if it is on the same network as the MX64 in the Dashboard, this is because someone added it from the organization inventory to this network. I cannot go there by itself.
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