Troubleshooting

Field-tested fixes for common FRC roboRIO, radio, power, and network problems seen at events.

• Motor current limits on Talon FX and SPARK, and which one fixes what - 2026-09-11
• Driver Station Communications indicator half lit means one of TCP or UDP is blocked - 2026-09-10
• FRC network ports and protocols between Driver Station, roboRIO, and dashboards - 2026-09-10
• VH-109 radio keeps rebooting when powered from the PDH switchable channel - 2026-09-10
• ESD through an unshielded USB extension dropped both roboRIO USB ports - 2026-04-11
• USB Ethernet adapter in the roboRIO USB port when the onboard Ethernet port is dead - 2026-04-04
• Debris in a roboRIO 2 microSD slot caused repeated unrecoverable errors - 2026-03-28
• roboRIO CPU at 100% from per-value logging starves NetworkTables - 2026-03-21
• Kraken default 70 A supply current limits trip the main breaker - 2026-03-14
• VH-109 radio powered by PoE and the DC input at the same time keeps rebooting - 2026-03-07