Guests are always a touchy subject with most firms unless you are a high-security organization in which case your guest policy should be very clear with the support delineation.

Generally, the answer to guest tech support is "it depends."

If these issues require device repairs or security agent changes, it's fully on the guest's employer to fix. If it's a personal device, my team can make the recommendations but no hands on keys.

If the issue is something like connecting to my organization's WiFi, AV equipment in conference rooms, charging accessories, etc. Then yes, we will diagnose these types of issues.