Identify Error

[AdminKolar]

We use a PWA link within an SSO LTI for students to access their teacher's meetings. Currently we have had reports of some students sitting in the waiting room, even after the meeting has started and others who hop into the room, but then are "dropped" out after 3-5 minutes. 

The current process to "fix" this is to have students clear the cache on their Chromebooks and re-enter via the SSO and LTI process we have in place. 

Is there a way to test where the failure is occuring? I am unsure if it's the device or possibly the district's network. Has anyone else had experience with similar issues? Thanks in advance!