Right,i thought i would try to find my promblem with this,so I have changed from my dedicated desktop pc(Ryzen5 3400g with Nvidia gtx 1060 6gb card) , used my laptop (i7), and then again with my sons laptop (Ryzen 7 with 4.2 ghz chip), I have tried wireless, and, with and without,extensions on a wifi adaptor AND with ethernet cables.
I was told it was bandwidth , so I got onto my router provider to find out if mine had latest software etc…They actually sent me a new one.
Once set up tried tests again and IT STILL DOES IT…CONNECTION DISCONNECTED…
HELLO… ANY ZWIFT STAFF READING THIS, ITS NOT OUR PROBLEM , AND WE ARE PAYING OUR MONTHLY SUBSCRIPTION FOR THE “PLEASURE” OF TRYING TO SOLVE IT
Can you post the link to the zwiftalizer.Com results, maybe there’s something in there.
Also do a ping test on zwiftalizer
I concur with your assessment on that this issue is a server side issue and not local.
How else can you explain the many users that have used Zwift for years without issue that are now having connection disconnected messages despite nothing changing to their setup.
I am not sure of the complete setup/situation for all of these users, but I had an exchange with someone at Zwift who looked at my sessions. I only have this issue on my iPad, and only while riding in Makuri. The explanation I was given was that my iPad appeared to be ‘running out of memory’ during my rides.
Putting together that this only happens in Makuri, which has been extensively noted as being a memory hog, and that my issues (and seemingly everyone else’s) started around the same time as the video replays were introduced (not necessarily to the public, but when Eric Min started teasing them), my guess is that the addition of the video replays is putting just enough extra ‘pressure’ on some peoples’ systems to tip them over the top and cause this issue.
Pure anecdotal speculation on my part, but it seems to fit.
I was an early reporter of the issues which started long before video replays and also the I’ll fated update that broke erg mode and drops.
I’m on Windows with a dedicated PC, replays haven’t got to me yet.
And it happens on all worlds and in or out of events.
D’oh! You’re right. I was confusing the ‘Connection Disconnected’ and ‘Connection Unstable’ issues.
I’m windows too and was getting the connection unstable wartnings a lot but think these have been turned off now?
all warnings stopped for me for a few weeks and now i get connection disconnected messages most rides, nothing has changed for me, video calls for work and downloading/uploading big data sets have no issues whatsoever, only problems i have are with zwift.
only thing i could think is that if a lot of riders are uploading videos at the end of rides now this might be putting too much strain on zwifts servers.
I think the makuri issue is a separate thing btw
The PR bots being active for most people all the time probably added even more to the bandwidth demands at the server end…
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I think they just changed the verbiage, but it’s the same issue?
I had it through two different ISP’s. It’s an Amazon Web Services server that appears to be the problem.
Pretty sure they’re separate issues and think they turned the connection unstable one off.
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had this the other night in the tour, lost the number so it was --/1038 for example and then showed disconnected but HR/Power was still showing and all riders were visible, zwiftalizer no issues, so im going to say this is a server side issue
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Yes, it is. If you look at the log (not recommended as it will induce sleep and may interfere with operation of machinery, etc) It shows the IP address of the server, and even, oddly, appears to show that the server is actually up, but there is some unknown issue communicating. Like maybe a timer in the app is running and not measuring what it should be. It’s seems to be more of a programmer artifact buried deep in the code. Everything keeps working, but something is off. I thought at one point it might be a hard coded address that was pointing to the wrong server, but who knows. It is a little disturbing to see it pop up, and some rides it’s there quite a bit, and others not at all. 
It’s a feature now…
Got this again today.
Did a workout for over an hour with no problems. Joined the race London event and all was fine for most of it then about a mile from the end got connection disconnected and was left cycling on my own until the finish. As soon as I crossed the line and the results went away other riders reappeared again.
No internet issues with my set up, I’m sure this is a zwift issue. My guess is as people started finishing the race, having to calculate lots of positions, upload photos, maybe videos made the connection zwift side fail.
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Can anyone interpret the Zwiftaliser logs? Dropping connection using laptop on wifi and also using phone hotspot. Zwiftaliser links below (can’t paste links so add to the normal https)- is someone able to interpret these and tell me if it’s my setup?
2a87b288-62cc-4df5-b259-5996f20dcf7a
58ea2816-2bd4-47ca-b47d-de6060e927f7
I don’t see any problem in your Zwiftalizer reports. You are running on an 11th gen CPU with integrated graphics, which is known to crash the game sometimes, but I wouldn’t expect that to matter in relation to connection errors. Both of your rides were in a busy environment (“Crowded” and “Packed”) so that would tend to increase system load, but your frame rates look mostly OK, with the exception of the start of the ride on March 8. You might try running Performance Monitor during a ride with a huge number of riders to measure how the CPU is handling it. You could also try doing free rides with less riders around and see if there’s any difference in errors you see. If you want to do that test, avoid big Robo Pacer rides and avoid Makuri Islands which performs worse than everywhere else.
Thanks Paul. I know the integrated GPU isn’t ideal. Normally I’m on Apple TV (4k, not quite the most recent one) but having constant connection issues so resorting to the home laptop to be able to access the log files. One of these rides was on the home WiFi, the other using my phone as a hotspot- seeing disconnects with both. Both these rides were ToW rides, which explains the number of riders but I wanted to do group rides- the “position in group” showing -/- is normally the first sign it’s dropping (no position indicator in free ride). The zrl races atm are about 100 riders so wanted to stress test it, although also seeing sporadic disconnects in free ride warm ups. Broadband provider insisting nothing is wrong, zwift help currently blaming out of date firmware on kickr core (not true- just triple checked it). Thank you again for your help- any suggestions? 
If you lose the position counter in the group, that has nothing to do with your trainer. That’s a problem with the Zwift app communicating with the Zwift servers. It could be a network issue (anywhere between your device and the Zwift servers in Oregon, USA). Zwiftalizer has a ping test. I would try that next.
I know that, but just trying to humour zwift support and follow their suggestions to try to get to the bottom of it 
. The zwiftalizer ping test shows average 178 (I’m in UK), with occasional spikes to around 500. Presumably this is the issue, but would this not show at a latency issue in the zwiftalizer log file?
replying to my own post as I think there might be something not quite right with zwiftalizer or how zwift is recording the logs as last night my wifi dropped on the router during a warm up ride around 2-3 minutes in, internet was still working but no wifi, got the standard riders disappearing except for the robopacer I was with, and then the disconnected message, after a few minutes everything came back and no other issues and completed a stage in the ToW
Now when I put that log file into zwiftalizer it said no disconnects or any other issues when clearly i had lost everything, so either the log doesn’t show this disconnection or zwiftwalizer isn’t reading the log file correctly, I will have a look at the log file tonight to see if it shows this disconnection but at the moment if zwiftwalizer says no disconnects I’d be a bit weary of it being correct
here’s intervals.icu showing the drop, power to 0 and cadence to 0 where I stopped to get off and look at the router
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I did a single lap of Glasgow Crit last night and after ~4mins, all riders disappeared for ~10secs. After ~5mins, my Saris H3 unpaired from my Mi A2 using ANT+ and wouldn’t pair again for ~60secs.
Weird.