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Unstable Internet Connection frustrations


Hi all,

I use basic, free Zoom and lately have been experiencing frequent Unstable Internet messages.  I've read lots of articles about this on the internet and am still baffled so any direction on solving this would be appreciated.  Here is what I'm using and what I've done so far.


1. I typically sign into Zoom right from Google chrome by going to  Should I be using the installed program?  Does it matter?

2. I'm on a pc, W10, newish laptop, Google Chrome.  Windows and all drivers fully up to date.

3. Network troubleshooter shows no problems.

4. Wifi speed 2.4G about 75 download/13 upload and with 5G about 84/13.  However, I noted 5G has about one bar less on strength than 2.4G.  Which is more important - signal strength or speed?

5. Not using HD camera.  No other streaming occurring in house

6. Not sharing videos etc. during call that would bog things down.  Just a shared whiteboard.

7. No unnecessary tabs open on pc during call.

8. No background apps running on pc that I think would bog things down.


TIA for any direction on solving this  annoying problem.


Community Champion | Customer
Community Champion | Customer

Hi, @HighTrails –


There’s always a lot of things to consider when troubleshooting bandwidth issues, but sounds like you’ve already looked at several of them. I’ll give you my opinion on a few things, and point you to a few Zoom Support articles that may be helpful. 

First, I personally recommend installing the Zoom full client from  I believe it runs faster using the native PC code, and also gives you access to Zoom chat and other tools.


Next, I do recommend making a wired internet connection whenever possible.  Wifi and cellular connections are notorious for being great one minute and horrible the next, and while wired connections also have highs and lows, radio waves can be eliminated as a source of problems. I know in some environments, you just have to be wireless, but look to be wired whenever possible, and especially if you are presenting to others.


 If there’s anyone screen sharing, check their screen size. (Look at the Statistics tab of the Setup window in Zoom; see this Support article.) I’ve seen presenters with 4K monitors who don’t realize the huge amount of extra bandwidth load they place on  every viewer when Screen Sharing! That’s when I get the most complaints – “everyone said the slideshow looked so beautiful, but mine looked horrible!” on a shared wifi network with 20-30 coworkers. 

Speed rules! Great signal strength with slow speed doesn’t help you at all. 

Ray - / aka "Old Desert Lizard"
Please mark this post Accepted if it helped you !


I have been having the same problem recently. Zoom was absolutely fine for about 18 months, but the last 5/6 months it's been troublesome. Get unstable internet message & then microphone packs up, so no-one can hear us. I have tried using ethernet cable rather than wifi - no different. Usually it's fine for about the first 20-30 minutes, then packs up. Sometimes mic comes back working, sometimes we have to rejoin the meeting. Very tedious!

Have bought a usb microphone to see if that makes a difference. Sadly not.

I have today uninstalled the Zoom client & will reinstall later. Will also try rebooting router.


Looking online it would appear that there are many many people having exactly this problem & Zoom seem to do nothing about sorting it out. The fact that there are so  many people having the same or very similar issues would lead me to think that there is a problem with Zoom. I'd like to think that they would do something to fix it or people will start using Teams etc

If I use my university Zoom account, I have no difficulties whatsoever. However, if I try to log into someone else's zoom meeting (usually international), I get the unstable internet connection message as well as having issues with my microphone and sound. It seems to be a Zoom issue - not my computer!


I am also having the same "Unstable Internet" connection message. It seems to only happen when I am talking which makes me freeze and the audio becomes garbled. 


I have a Dell XPS 13 7390 running Windows 10 (latest build) and lots of RAM.  This is what I have done.


1. I had Spectrum internet visit my house and check the lines. The repair person said that my signal is better than at his own home.

2. I upgraded to 1Gig internet, which has 40 Mbps down according to Speedtest.

3. I replaced my router with a $250 Netgear router, current model.

4. I replaced my switch.

5. I swapped my hardwired cable.

6. I bought a USB-C dongle and connected my Ethernet to the dongle

7.  I uninstalled/installed the Zoom software

8. I checked all drivers


None of these steps solved the problem. The only other thing I can think of is to buy a Mac. What do you suggest?


I was using a PC and I had lived same experience then I bought a MAC but same problem is still going on.