New to EE from BT, Zoom constantly freezes

[Piper1862]

I recently moved from BT (with them many many years), EE plan Essentials Full Fibre Gigabit. 
I am using the EE Smart Plus Hub and 3 Smart Wifi plus boosters.  Speed into the house is around 900mbps and upload 100mbps.

Everything is great apart from when I use zoom.   It constantly freezes, document slow to load and sharing a video eg YouTube is impossible.   All of this worked perfectly when I was with BT.   

When I first signed up I got one wifi booster, Zoom poor,  they then sent another (I asked for 2 more) but  advised not to have 3 as .if they are too close it can cause a problem'.    Zoom still not working properly.  Engineer booked.  Engineer said this is a know problem with Zoom and Teams and advised a TP Link PowerLine adaptor.. call EE and they will send one.   Called EE  wouldnt send a TP Linc until I had tried a 3rd wifi booster.   Booster ordered and he said 'you can have 3 boosters no problem', totally contradicting the previous advisor!!
3rd booster connected Zoom still not working.  Called EE yet again,  SAID his team leader (or similar)  will order a TP Linc as he didn't have the option to send one, it will take up to 72 hrs.   As expected 72hrs came and went nothing received.    Another call to EE and told I cant have a TP Link I have to hardwire!!   By this time I was fuming...  I bought a TP link and Zoom still not working.  Computer hardwired to router. guess what.. zoom still not working. 

And of course I am way outside my cancellation period so stuck with EE rubbish for 2 years.  
Looking on this forum there are a couple of other posts regarding a similar situation but they were last year.   Am I the only one struggling? 
Any suggestions please.

[Piper1862]

I cant find anything called Parental control in the app. 

[XRaySpeX]

Do you see WiFi Controls anywhere? Have you paired your router with that?

[PPPP2]

It's in group settings

[Piper1862]

Cant see group settings, I dont have any groups set up. 

[PPPP2]

You have a default group which contains all devices not explicitly set by you in another group - in your case this will be all devices.  There is a slider with settings "Off", "Low", "Medium" and "High" (or similar words).  Set to "OFF" to cancel all parental controls for devices in that group (ie all devices in your case)

[Piper1862]

Where is that, I cant see any groups or anything that says low medium high etc..   odd.  I will keep looking

[Piper1862]

when opening the app I assume I go to 'broadband.. where from there please?

[PPPP2]

Open the EE app and deal with password etc.

Click Manage (bottom line)

Click Broadband (top panel)

Scroll down past Safe Search and Devices to GROUPS

Click on the panel "Ungrouped devices"

Scroll down past "Create a group" and there you will see the settings for "Ungrouped devices" including Parental Controls.

[Piper1862]

got it thank you.   Not sure why I couldnt see that a few minutes ago 🤔.   Its set to 'off' after all that lol.   

Thanks anyway for patience. 

[Ewan15]

@Piper1862 Just for info I use Zoom and Teams all the time without issue on both Smart Hub Plus and Pro routers.

Initially was using Smart Hub Plus now using Pro.

So I would not say there is an issue with Zoom on Teams on the EE Platform per se.

I don't use parental controls however.