Call drops at one location.

[jochoa]

I have a system where I have four classrooms with 2 in northern Utah and 2 in southern Utah. They use zoom meeting everyday with Dell OptiPlex 7020 PC. One location when on the meeting will drop several times during the day. 70% of the time it auto reconnects the other you have to log back in and join the call that is still going. We tested this by adding another class at that same location on the same network in the same rack stays online and never drops the call. Now we have tested the network swapped out an old switch to a new one thinking maybe the ports were going bad. Uninstalled zoom and reinstalled it. Nothing at this point has fixed it and I am scheduling a call with Dell so they can remote in at a time they done have class going on. 

Wanted to see if someone has experienced this and if there is something with zoom that may be causing the drop or some other thing?