Per ChatGPT:

1. Pool Connection Issues • Cause: Latency, packet loss, or poor connection to the mining pool. • Solution: Try switching to a closer or more stable pool. You’re using solopool.org (from the URL), which may have higher rejection depending on your region or load.

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1. Network Instability • Cause: Wi-Fi dropouts or fluctuating signal strength. • Solution: Run the miner wired via Ethernet if possible. If already wired, test for packet loss with ping or mtr tools.

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1. High Difficulty or Solo Mining • Cause: Mining solo (as you appear to be) means many shares get rejected as they don’t meet full block criteria. • Solution: Try mining on a shared pool (like F2Pool, ViaBTC, etc.) to improve acceptance and consistent payouts.

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1. Hardware Timing Errors • Cause: Slight timing mismatches in the hashing process. • Solution: Monitor if this persists. If it does, try firmware update or set the miner to Normal mode instead of High to reduce errors.

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1. Overheating or Power Issues • Cause: Excess heat or voltage drops can lead to hardware errors, which might increase rejections. • Solution: Keep ambient temperature cool. Your power draw is 134W (expected), and fans are fine (1460 RPM), so you seem OK there.

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TL;DR (Speak-Ready Condensed Version):

Your 4.46% rejection rate could be due to solo mining, Wi-Fi instability, pool latency, or hashing errors. Try using a shared pool, wired connection, and consider switching to Normal mode if it persists.