This looks like a confirmed bug. The workaround is as you've discovered, but in a SR topology it's obviously not ideal. If you open a support case, we can let you know when other fixes are available. Downgrade to 9.6 corrects the issue if you don't need any of the features in 9.7
I was hesitant moving forward with this upgrade. I even called support the night I performed the upgrade (1-9-2014) and was not warned about guest access by the technician. I was watching the forums, I had read all the release notes, the upgrade documents, etc... and there was no mention of guest access issues.
Also I realized I typed the URL incorrectly above it should be: IPADDRESS/user/index.jsp NOT IPADDRESS/guestpass.
Is there a way to get a list of identified bugs before upgrading?
Is there any kind of an ETA on an patch version? I really don't want to roll back to 9.5.1 and then upgrade again to 9.6.x . Also again I don't know what bugs I'd be inheriting with 9.6.x
Ouch, sorry about that. You did your upgrade almost exactly when engineering was able to confirm the bug (timestamp of the update..1/9/14 11:57pm).
Right now, for 9.7, I'm aware of 2, and this (above) is the only "serious" one I am aware of for ZD controlled systems.
Please open a support case so we can aggregate the requests and work on getting a "patch" available (a patch is an issue-specific build with basic quality tests, but not full regression, an MR is a fully tested build that will contain multiple patches). The first MR of 9.7 is still some weeks away.