When I try to lauch Zwift, these alerts loops 4 times below.


After that, it shows the alert below.

Before I reinstall Zwift, I deleted Zwift folder in “Documents” folder and “Downloads” folder and I cleared cache of Edge browser and rebooted PC. And I reinstalled Zwift. But Z117 error does not fixed.
Please help me.
You might want to search the Forum for Z117. There are a number of other posts on this already that might contain an answer for you.
1 Like
Thank you.
I found the solution fixed the problem.
The title of the post is “ISP or CDN issue with latest v1.0.52 files - Z117 at line 601 in Patcher.cpp?”.
( I am new user, so can’t post links. )
After I updated Zwift on tethering my mobile phone, no error occurred.
1 Like