Error getting packages from TeamCity V1 feed since upgrade to 3.4.x

We upgraded to octopus deploy 3.4.x yesterday (9/1/2016) and we can no longer deploy packages hosted on our TeamCity server (9.1.7).
TeamCity can only host V1 nuget feeds and it appears that the 3.4.x upgrade is expecting a V2 feed. Here’s a sample error:

The V2 feed at ‘http://build.xxxxxx.com/guestAuth/app/nuget/v1/FeedService.svc/Search()?$filter=IsAbsoluteLatestVersion&searchTerm=‘Longbow’&targetFramework=‘unsupported’&includePrerelease=true&$skip=0&$top=10’ returned an unexpected status code ‘404 Not Found’.

Hi,

Thanks for getting in touch.

You should be able to access your TeamCity NuGet feed from Octopus 3.4.x.

Are you able to access your TeamCIty feed url through the browser from your Octopus Server machine?

We have a guest TeamCity feed here: http://teamcity.octopusdeploy.com/guestAuth/app/nuget/v1/FeedService.svc/

Can you access that feed from Octopus?

Cheers,
Shane