@WigTech 

How are you testing these speeds and what connection are the devices registering?    Also any channel info you have is helpful

I would start by forcing the APs onto a clear air channel in the 5ghz range and set it for 80/160mhz wide channels to get the maximum transfer rates.

Any more info would be helpful

@Virgo 

Tried the EAP optimization, adjusting the channels and channel widths and no change.

Will test link speed when onsite today.

@Philbert 

The main testing was  using speedtest.net app on an iPhone Xs while standing on top of the EAP. Making sure to disconnect wifi then reconnect while at the AP so that I am on that AP. Also tested with a Win 10 laptop.

Using channels 1, 6 and 11 for the 2.4. Don't remeber what the 5ghz is at but we tried multiple options. Also tried adjusting the channel widths.

The airwaves seemed farley clear at the site. There is only one outdsitde network wireless router within range of the building.

Could the EAP 225 be slowing down the rest of the Wifi network?
It was only getting 100 down and 40 up while in standealone mode.

Now that it is added to the Omada setup, could that be causing the slow speeds on the EAP 245 and EAP 660?

It could also maybe be the Cat5e run to the EAP 225.  We have a crew replacing the runs to the EAPs today then will test tonight.

@WigTech 

Yeah any update you had would be good

Its highly unlike that the EAP225 is slowing the other APs, they don't really work like that as they are technically separate APs and not reliant on each other.   However you do mention the CAT5 cable so taht sounds like where I would start to look.

What speed is your LAN connection on the APs?

After posting my last updates. I got a call from the project manager saying that the client has postponed any work till the new year.

So no update for now. 

Finally made it back to the work site.

The project lead decided to replace some of the lines with fiber. That has helped some.

For one of the 4 WiFi networks/clients we had to break it into separate 2.4 and 5 ghz WiFi networks because there smart light bulbs were having problems connecting.

Possibly going to that for the other 3.

We also decided to give up on sending all 4 WiFI networks to each AP.

Looking more at the wireless traffic in the area with a different tool, it does look more congested. So we are going to have to adjust signal strength, WiFi channels, and turn off the Comcast business WiFi on the modem.

Would it help to adjust the network layout and break out the network switches to separate ports on the router? Currently we have a managed switch as the main switch then a secondary switch connected to the main.

Then would it also help to add a second WAN connection from the router to the modem, then assign 2 vlans to WAN1 and the other 2 vlans to WAN2?

@WigTech 

I did some more testing onsite and offsite. It looks like a big part of the speed reduction is coming from combining the 2.4 and 5ghz with the same SSID.

After separating them and connecting to the 5ghz, I can get 3 times the download speed I was when they were combined.