How do you keep wasps from nesting on outdoor access points?

A protective enclosure or radome is one option if the nesting spots are around the equipment itself. Look for something intended for outdoor wireless gear, and check how it affects the antennas and signal before installing it everywhere.

It won't necessarily stop wasps from nesting on the outside of the enclosure, so the shape and mounting location matter too.

You could try a fake hornet nest or a dragonfly decoy nearby. They're cheap enough to experiment with, but the reports are mixed. A decoy may make no difference, so I wouldn't count on it as the only solution.

If the access points are working and nobody needs to handle them, leaving a nest alone may be less work than removing it. Wasps also pollinate and prey on other insects. That said, an active nest close to a maintenance access point can be a safety issue.

For active nests that need to go, consider a pest-control service rather than knocking them down near equipment. Wasp sprays and longer-lasting insecticides are options, but follow the product label and check that any treatment is suitable around the equipment and its location.

Wax or peppermint oil has been suggested as a deterrent, but outdoor exposure can wear coatings away, which means more reapplication. Check compatibility with the enclosure before putting anything on it. That may not save much maintenance in the long run.