Are you using an ICX switch in this setup? If yes, could you check once on what code it is running?
We have seen issues in past where due to frequent power cycle ICX switch boot image may change from existing image to the other boot image and usually other flash image may have router code. Because of this network will not work as expected.
SSH/Telnet into the ICX switch and run below command
Syamantak Omer | Community moderator | Staff TSE | CWNA | CCNA | RASZA | RICXI | Follow me at https://linkedin.com/in/syamantak-omer-5949b6124