🔌 – On Windows 10/11, you may need to disable driver signature enforcement temporarily. Yes, even with official Cisco drivers.
🔄 – v3.1 works great for many legacy devices (ISR G2, ASR 1000), but newer gear sometimes prefers v3.0 or even a direct serial cable.
🧹 – Upgrading from v2.x to v3.1? Remove the old driver first, or you’ll get phantom COM ports that don’t respond.
