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Microsoft Teams Quality Issue

QuantumPhys
Contributor
Contributor

Hello all,

I've got an odd issue which I'm hoping someone can offer a steer on.

I have the EE 1.6 Gb Full Fibre Busiest Home package with a Smart Hub Plus.

All seemed to be working fine until my original Smart Hub Plus failed in Jan 2025. This was attributed to a bad firmware update, and a new hub was sent out. I connected this up and again everything appeared to be ok, until colleagues at work started complaining that my video during MS Teams calls was regularly freezing. On my end, I didn't see any issues - I could see and hear everyone else fine so it came as a surprise. Setting up a test meeting that just included me, I recorded myself and when playing back immediately found that the video and audio both freeze and stutter. This is readily reproducible, although sometimes the performance is extremely bad with the video completely frozen. Strangely, this only affects the MS Teams desktop app, with connections via the web browser still being good quality.

So far, everything else seems ok - stable and fast connection (getting around 1.6 Gbps routinely).

Here's what I've tried so far:

  • Updated Teams and all drivers on laptop.
  • Direct cable connection to router with WiFi turned off and all other devices disconnected. No difference.
  • Laptop on WiFi on corporate network - absolutely fine, no surprise.
  • Laptop on WiFi in various coffee shops and on friend's home broadband - all much slower connections than mine and Teams is absolutely fine. Often extremely good.
  • Used phone as 4G hotspot - absolutely fine - extremely good video and audio.
  • Replaced the Smart Hub Plus with an old Asus router I used with a previous ISP - connected to ONT. Connects via PPPoE fine with reasonable speed (around 750 Mbps although using 2.5G port as WAN port, so a little surprised it's not faster).  Connection appears very stable and no obvious issues shown by ThinkBroadband BQM. However, Teams behaves exactly the same as with the EE router - terrible video and audio.
  • Configured Hotspot VPN on Asus router - set location to South England. Connection speed is around 100 Mbps. However, Teams now works absolutely fine. Very good audio and video. Turned off VPN - fast connection restored and Teams video and audio revert to being terrible.

This suggests to me it might be some network infrastructure issue, rather than a problem with the Smart Hub Plus or with the laptop / Teams. Could the route the traffic is following make a difference? If so, how would I go about pinpointing this? The Microsoft 365 connectivity tests don't flag up anything obvious.

After much testing to convince myself there was an issue with the connection I called EE and an engineer visited. He indicated there had been some problems with the Smart Hub Plus on fast connections, tried to run a series of tests but these didn't complete. Reason unclear. However, he was confident that the new Smart Hub Pro would resolve the issues although he wasn't allowed to issue one himself.

Engineer left, job appeared to be closed, then I got a message from OpenReach asking me to arrange a call so that equipment could be delivered. I did, got put through to EE, with the guide saying that I really should have had the Smart Hub Pro already and that he'd get one sent out, although the process for doing this was very difficult. That was almost a couple of weeks ago. Being concerned this wasn't being progressed I got back in touch - over multiple calls now, once I get past the agent telling me I've got a very fast connection and they can't see an issue or find open jobs, when they review previous notes there's a record somewhere to an order being placed, but no-one can find out what. It appears I'm now down as a new customer and something needs to be progressed by the "New IT" team, even though I've been with EE for over a year.

So, perhaps a Smart Hub Pro will be sent out, which will be good because it sounds like I'm entitled to one on my package.

However, I'm not convinced the hub itself is the issue, given that the Asus router performs similarly, except when a VPN is active.

Does anyone have any thoughts about what might be happening?

Thanks!

 

 

 

 

106 REPLIES 106
Stephen789
Investigator
Investigator

I'm on the phone to EE now.

They say the fix is moving to the Smart Hub 2

I'm explaining to them that I will lose WiFi 7

Stephen789
Investigator
Investigator

Currently have the Smart Hub Pro

Stephen789
Investigator
Investigator

I also have 3 WiFi Pro Extenders.  So do they need replacing?

Stephen789
Investigator
Investigator

It was interesting that the tech support person instantly said they knew about the issue and would send me a Smart Hub 2

At the moment I'm on hold while he checks with his manager, as I feel this is a downgrade to fix their issue.....

Have you retested today?   I've changed nothing my end and the problem has vanished today. (I had a Smart Hub Plus (that they kept calling a Smart Hub 3), they suggested the fix was to move to Smart Hub Pro. 

The first line staff have no clue, they're just saying things without understanding anything.  Yesterday at one point they told me (with supremem confidence) it was the TP-Link router on my wifi causing the problem, the only TP-Link devices I have are smart lightbulbs.... My work PC with the problem is cabled to the router.... 

Stephen789
Investigator
Investigator

Yes the video has frozen on every single call today.  I'm a Tech Director and my team are all remote.

Stephen789
Investigator
Investigator

The support person said the IT team are working on it said it will be resolved within 1 month.

Stephen789
Investigator
Investigator

So they're sending a Hub 2 with extenders.

Apparently they are all over this Teams issue and will have it resolved within a month.  At that point I will receive an email and can return to WiFi 7

Disappointing having to downgrade, but at least I'll be able to do my job.

I wouldn't believe a word they say (based on my calls into their "support"). Maybe it'll take them a month to roll out the change and that will solve the issue.  I'd guess the Hub2 resets the QoS marking like the old BT hubs aparently did, working around the issue. 

Good luck 👍

HomeNetworkGuy
Valued Contributor
Valued Contributor

@Stephen789  - FWIW, my workaround recently (for both WebEx and Teams) has been to:

  1. go to the meeting in outlook
  2. right click on the "Join the meeting now" link. 
  3. select "copy hyperlink"
  4. paste the copied hyperlink into the address bar of my browser (Chrome in my case), then hit enter
  5. Chrome asks if I want to open Microsoft Teams, I choose "cancel" (you might have to go into the browser settings to disassociate teams, assuming in the past you'd clicked "Always allow teams.microsoft.com to open links of this type in the associated app" - or use a new browser that you don't normally use, e.g. Edge or Firefox)
  6. On the page asking you to join the teams meeting, select "continue on this browser"

    It's much the same for Zoom or WebEx...  It seems the browser method of joining these meetings does not have the capability of marking the voice and video packets as high priority.