We are using 14+ GS724Tv4 switches setup with SFP Fiber linking them around our 100,000sf+ manufacturig facility for speed and redundency. Spanning Tree is enabled on all switches. It had been working for over 2 years, then we lost connectivity to over half the building. After trouble shooting, we replaced 3 of them and are back up, but can not verify what exactly happened to those switches. Prior to replacing the switch, we replaced both Fiber Modules in each switch. Is there anyone else doing anything at this scale, having any similar problems or suggestions?
14 - GS724T v4
2 - GS728Tv2
1 - GS728TPP
1 - GS510TPP
All current on firmware. All 3 replaced switches were the GS724Tv4 versions
