Zwift App Freezing Windows 11

Bugs and Support
1

Device:Asus TUF gaming FX505DY
R5 3550H with radeon Vega mobile and RX560X graphcs and 8gb ram
Running from SSD
Trainer, neo 2t
wired over powerline and switch
Ireland
Latest 1.77 release, 1.78 was not rolled out when I checked
FTTH internet

Part way through the ride zwift freezes and the log file shows numerous UDP timeouts starting around the time of the freeze, the fit file for the activity updates (not inprogress activity.fit) updates after a few minutes with only the last few seconds cut off.

[19:59:10] [WARN] UDP connection timeout (1 so far), reconnection attempt 1
[19:59:10] [INFO] Connecting to UDP server with relay id 886476683...
[19:59:20] [WARN] UDP connection timeout (2 so far), reconnection attempt 2
[19:59:20] [INFO] Connecting to UDP server with relay id 886476683...
[19:59:30] [WARN] UDP connection timeout (3 so far), reconnection attempt 3
[19:59:30] [INFO] Connecting to UDP server with relay id 886476683...
[19:59:46] [INFO] UDP metrics {StC Rx: 197, Rx error: 0, CtS Tx: 0, Tx error: 0}
[20:00:00] [WARN] UDP connection timeout (4 so far), reconnection attempt 4
[20:00:00] [INFO] Connecting to UDP server with relay id 886476683...
[20:00:30] [WARN] UDP connection timeout (5 so far), reconnection attempt 5
[20:00:30] [INFO] Connecting to UDP server with relay id 886476683...
[20:00:46] [INFO] UDP metrics {StC Rx: 0, Rx error: 0, CtS Tx: 0, Tx error: 0}
[20:01:00] [WARN] UDP connection timeout (6 so far), reconnection attempt 6
[20:01:00] [INFO] Connecting to UDP server with relay id 886476683...
[20:01:30] [WARN] UDP connection timeout (7 so far), reconnection attempt 7
[20:01:30] [INFO] Connecting to UDP server with relay id 886476683...
[20:01:46] [INFO] UDP metrics {StC Rx: 0, Rx error: 0, CtS Tx: 0, Tx error: 0}

There is also a TCP error around that time

[19:58:33] [WARN] Auxiliary Controller failed to shut down tcp socket: 'A request to send or receive data was disallowed because the socket is not connected and (when sending on a datagram socket using a sendto call) no address was supplied.' (10057)
[19:58:33] [INFO] Auxiliary Controller failed to connect to socket: 'The I/O operation has been aborted because of either a thread exit or an application request.' (995)
[19:58:46] [INFO] World clock offset updated from +324288762ms to +324288761ms (-1ms)
[19:58:46] [INFO] UDP metrics {StC Rx: 1001, Rx error: 0, CtS Tx: 217, Tx error: 0}
[19:58:59] [ERROR] Error receiving TCP header [2] End of file
[19:59:04] [INFO] TCP disconnected
[19:59:04] [INFO] TCP host 44.244.70.132:3025 (secure)
[19:59:04] [INFO] Connecting to TCP server...
[19:59:05] [INFO] Saying hello to TCP server (largest wa is 1731527937040028)
2

There have been a lot of reports like this recently. Many of them say that it gets better if you install the latest Radeon driver from the AMD website. Part of the problem appears to be related to some kind of memory leak.

I would also disable video screenshots in Zwift to improve performance.

3

Those were already disabled along with regular ones. How recently? I rode for almost an hour on the 5th and 6th. Today’s crash and the previous one last saturday occured around 35 minutes in.

4

Here are some examples but there are others here on the forum and on Facebook