Had a problem with my new Quest and thought I should share the information here since I couldn't find it here or anywhere that Google has indexed.
WPA2 supports 64 character passphrase in hex or 63 in ascii. I have my router configured with a 63 character ascii and the Quest would not connect to the router on either the 5 GHz or 2.4 GHz band. It would connect to my Guest on the 2.4 GHz band virtual, which uses a shorter passphrase.
I'll skip the step by step of my experiments, but the bottom line is that it connected to a virtual instance on the 5 GHz after shortening the same passphrase by 1 character. So it looks like Quest has a 62 character limit for that.
I hope this helps prevent or end some frustration for others. I'll see you out there killing orcs!