Never stayed in the Milwaukee Marriott West, but have in the Ren Mayflower (in one of those suites you mentioned) so I can use it as a point of reference.

While that's a pretty good hike, it pales in comparison to the distance between the rooms numbered "XX28" in the far reaches of the "E" Building (where Concierge rooms and lounge are located) and the front desk in the Hartford Marriott Farmington.

Normally the smartest move when checking into Farmington is to leave your car in the "no parking" zone just outside the lobby with flashers on, check-in and then drive to the "E" Building garage and take its elevator to your floor.

From that elevator to the "XX28"-numbered rooms is a pretty good hike, but if you find yourself in the same predicament, non-functioning keycard you might as well take the elevator back downstairs and drive back to the lobby.

That's because if you choose to walk, you've first got to shlep (with your luggage if the CL is closed) back to the "E" Building elevator and take it to the ground level (because that's the only floor that's contiguous with the rest of the hotel).

From the elevator lobby you proceed to traverse the first of two long corridors (with down and up inclines because the corridor dips below a driveway located at ground level between buildings).

BTW, this one's longer than the distance from the front desk of the Mayflower to the rear entrance and represents about 60 percent of your walk.

At the end you make a right and-

There's yet another corridor past the pool, business center and coffee shop that brings you back to the lobby.

There you get the keycard reset and can purchase emergency rations (don't forget a canteen of water) in the gift shop before setting out on the return trip.