The DM first starting having issues at ~11am 2 weeks ago on April 22nd (Tues) for seemingly no reason, there wasn't any work or alogs that day that would made us suspicious of causing this.
Following my alog comments on alog84282, Dave showed me where the physical comtrol box is in the CER, restarting it brought the connection back but I then found that the dust monitor had no flow :(. This DM hasn't been used since we got it calibrated in April of 2024, so I swapped it for the last pumpless spare we had which has good flow but now it's not connecting again. I've tried powercycling the DM itself, the ioc, and the comtrol box then the ioc which is what got the other DM to reconnect, and it still getting "No reply from device within 1000 ms" for all its PVs. The DM it self is working and reading counts properly.
Doing a telnet network status (comand "ss -e") on h0epics for the diode room port yielded:
timer:(keepalive,38min,0) uid:1001 ino:20939307 sk:ffff8800b67bd500
ESTAB 0 0 10.105.0.80:37347 10.105.0.100:8000
I opened up the DM that had no flow to find that the internal tubing was not even connected, I swapped this one back this morning and it came right back no problem and we can see it on epics. The one that I took off has some kind of network issue.