Zwift Crashing after about 20 to 30 mins

General Discussion
1

Good evening All

Quick one, for the third time in as many days Zwift keeps crashing after about 20 - 30 mins of use. I thought it was my machine so rebuilt it and only have Zwift and Office on it (specs are Windows 10, GeForce 660GTX, intel i5 3570K). I never had any crashes when I was using my macbook (2013 edition) however the graphics were rather poor - hence moving over to the GeForce 660.

The errors from the log are:

[19:58:10] ANT : Transfer Completed.
[19:58:10] ANT : FET grade set successfully
[19:58:10] ANT : Rx Fail on channel 2
[19:58:11] FE-C SIM GRADE -0.022
[19:58:11] ANT : Transfer Completed.
[19:58:11] ANT : FET grade set successfully
[19:58:11] FPS 60, 70766, 13313, 39952
[19:58:11] ANT : dID 1166828 SW Revision 5633 SerialNum 52716
[19:58:11] ANT : dID 1166828 SW Revision 5633 SerialNum 52716
[19:58:12] FE-C SIM GRADE -0.023
[19:58:12] NETCLIENT:[INFO] Auxiliary Controller failed to connect to socket: ‘No connection could be made because the target machine actively refused it.’ (10061)
[19:58:12] ANT : Transfer Completed.
[19:58:12] ANT : FET grade set successfully
[19:58:13] FE-C SIM GRADE -0.025
[19:58:13] ANT : Rx Fail on channel 2
[19:58:13] ANT : Transfer Completed.
[19:58:13] ANT : FET grade set successfully
[19:58:14] FE-C SIM GRADE -0.023
[19:58:14] ANT : Transfer Completed.
[19:58:14] ANT : FET grade set successfully
[19:58:14] ANT : Rx Fail on channel 2
[19:58:15] FE-C SIM GRADE -0.010
[19:58:15] ANT : Transfer Completed.
[19:58:15] ANT : FET grade set successfully
[19:58:17] ANT : Rx Fail on channel 1
[19:58:17] ANT : Rx Fail on channel 2
[19:58:17] ANT : Rx Fail on channel 1

There is also a windows application crash log in Event Viewer although the Zwift log contains more relevant information I think. Looking at the above we’ve obviously got Rx Fails on ANT+ however I can’t beleive that would cause the crashing as it happens throughout the log file. Anyone have any ideas?

2

hi, i’m having the same problem , the last 3 nights 30 minutes into a work out zwift freezes and crashes …lost all data, fit file says activity in process…

3

@Steve_Barnard , if you are still having this issue I found (for me anyway) that it was the nvidia drivers that were causing the issue. I rolled back to the previous version and then it seemed to work OK. The latest version seemed to last 60 mins tonight no problem - it was the previous version that was the issue, the one before that was fine

4

cheers, i formatted the laptop and reinstalled everything and upto now zwift is running ok. thanks for the reply