This question got put on hold, but it seems to fall perfectly within the boundaries of what the forum is for. Thoughts?
Your question has several problems.
First, it is about a problem on a network that you do not directly control. You must contact the network administrators for help.
In your comment, you ask:
Where in the description does it say that I have to control the network?
The What topics can I ask about here? says:
and meets the following requirements
- under your direct control (if the network is not under your control you will not likely be able to provide the information required to answer your question);
- hardware that has a paid support option from the manufacturer (enterprise/provider class products, some small business class devices);
Even in your question, you say:
They have asked me to call them regarding this.
That is exactly what you need to do.
You also ask:
Does anyone have any tips to for them with respect to how this should be engineered.
The answer to that question is, "No." We do not have any information about how the network is engineered, and we cannot speculate or guess, which is off-topic for Network Engineering. Questions that are too broad or solicit primarily opinion-based answers are off-topic. Neither can you give us the information necessary to troubleshoot a network that you do not directly control.
For example using a browser cookie or something instead of relying on email and mac address?
This is also off-topic as protocols above OSI Layer 4.
You should look at the Network Engineering Question Checklist. I seriously doubt that you could provide the information necessary to even begin to help you.
Frankly, I do not see any way for you to salvage this question.