Attempting to deploy the agent over the network to a few un-managed PCs, get results and it shows 7 completed, 1 failed and the rest expired.

Can anyone explain the expired bit?

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It timed out.

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OK, set it for 24 hours and will check back tomorrow. Thanks!

Increasing the time to try and push will create bigger logs - I would just try to manually push it again tomorrow, or add a scheduled deploy tasks on a tree item and put the machines in there to automatically try, once the agent is deployed either have another rule move it, and the AV will download or manually move it.

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