We are having some real issues with Zoom calls. They mainly occur when we have more than 5 people on a call at the church. For example, we have had several staff meetings where 9 people are onsite and 50 are offsite. Everyone onsite reports a horrible connection and everyone offsite says their experience was fine except while trying to watch the participants at the church. Most ministries have now decided to host Zoom meetings from home to make sure they have good quality meetings. General video streaming seems to work fine and I rarely if ever have complaints about it. The issue happens inside and outside in all rooms all over the building. It also seems to happen with Teams as well.
Things that I have tried include: rebooting, different DNS, isp support calls on speed, Fortinet support calls (on speed and efficiency of the firewall, QoS policies set up properly, logging shut off, filtering shut off), 3rd party network colleagues with great advice, wifi QoS, researching the internet for similar issues but only found a few and they mostly suggested get a faster connection. Even with QoS on, it doesn’t seem to have helped and with traffic so low (only 9 users in the office) there isn’t much competition for priority anyway.
We have a fiber internet connection at 1G/1G
We have a Fortinet firewall (about 5yrs old) that supports up to 400mbps throughput
Our wired speed tests are typically about 400mbps down and 600mbps up.
Wireless speed tests vary but are normally 100/200 on 5Ghz.
All switches are connected at 1G speeds and I can successfully verify that across the network on wired devices.
What would you do next if you were me?
Hire a Fortinet certified engineer?
Replace the firewall?
Am I forgetting something easy?
Has anyone else out there seen anything like this?
Thanks in advance for any and all suggestions. I am open to anything at this point.