The C5c runs hot by design, but 2.8.1 doesn’t change that. At 45°C ambient (outdoor enclosure), the radio sat at 68°C core—well within spec.
If you are currently on version 2.5.x or earlier, do not jump directly to 2.8.1. Install an intermediate version (2.6.3) first due to partition table changes.
: 2x2:2 MIMO with RP-SMA female connectors for flexible antenna pairing. Mimosa Networks configuring the NMS settings