Okay, this is a puzzle! You've done a solid job so far. Here's a breakdown of potential culprits, prioritizing based on likelihood and ease of checking, along with considerations given your situation

Most Likely Culprits & Next Steps

1. The "Mystery" Junction Box

This is the most likely scenario, given you've checked so many accessible points.

The Hunt

Really, really think hard about any possible locations in the circuit run. Crawlspaces, attics (even partially finished areas), behind kitchen cabinets, access panels (sometimes hidden behind pictures or mirrors). Think about the path the wire would likely take. Even a random light fixture or outlet box in the downstairs can be a junction box. You're looking for a box where the cable serving the bathroom makes a transition.

Why Likely

It only takes ONE failed connection in the middle of the circuit to cause a complete loss of power to everything downstream. This box can be anywhere in the circuit.

How to Find

The RF tracer is a great idea. Follow the wire route from the breaker box. Follow the wire route from a working outlet that's likely the same run, look for a splice box.2.

Cable Damage (Raccoons or Other Cause)

The raccoon scenario is plausible, especially given the yard damage.

The Hunt

Visually inspect any exposed cable. Focus on areas where the cable enters or exits the house, passes through crawlspaces or attics, or is run along exterior walls. Raccoons often target the point where a cable enters a structure.3.

Failed Splice in a Hard-to-Reach Area



The Hunt

Consider areas behind appliances, under sinks, or other places that are difficult to access without moving things. Sometimes, a splice is made in a less-than-ideal location.4.

Problem at the Breaker Itself



The Re-Check

You said you checked the panel, but go back and really scrutinize the connections at the breaker. A loose connection here can sometimes be intermittent. Try wiggling the wires with the breaker off, retighten, and check again.

Less Likely, But Still Possible5. Failed Device (but Affecting the Entire Circuit)



How

It's rare, but a device could fail in a way that effectively opens the entire circuit. For example, a very old or damaged switch or outlet with internal corrosion could fail open.

The Hunt

Since you've checked most devices, this is less likely, but don't completely rule it out.6.

Double-Tapped Neutral (or Hot) at a Working Outlet



The Idea

It's possible (though unlikely, since it would likely affect more than just this bathroom) that a neutral (or hot) wire is double-tapped at another outlet and one of those connections has failed.

The Hunt

Inspect the wiring at a few nearby outlets (likely on the same circuit), looking for two wires landed under the same screw.

Why Your Readings Make Sense (Given the Situation) No Voltage Between Black/White and Black/Ground

This indicates a complete break in the hot (black) wire somewhere upstream. The circuit is not being energized.

Open Circuit Between White/Ground

This also points to a break in the neutral (white) wire.

Ground Wires Checking Out

This is good, as it means your grounding system is intact.

Action Plan


RF Tracer

Use that tracer! It's your best bet for pinpointing the break without tearing into walls.2.

Systematically Check the Most Likely Culprits

Start with the "Mystery Junction Box" and then Cable Damage.3.

Re-check the Breaker

Do a double-check of the connections at the breaker.4.

Consider Device Failures (as a last resort)

If all else fails, start methodically replacing devices, starting with the most likely culprits.

Important Safety Notes



Work De-Energized

Always turn off the breaker before working on any wiring.

Test Before Touching

Use a non-contact voltage tester to verify that wires are de-energized before handling them.

Call a Pro: If you're uncomfortable working with electrical wiring, call a qualified electrician. It's better to be safe than sorry!Good luck with the hunt! Let me know what you find. Flag for review