"Client TLS handshake failed" and am unable to connect to wifi

[streeyt]

I installed the mitmproxy CA certificate on my Android device and configured my desktop Mac touse mitmweb. I then attempted to connect to our regular WiFi from the Android device. I see a lot of, repetitive, requests in the mitmproxy logs but most notably:

[16:11:53.043][192.168.1.57:44994] Client TLS handshake failed. The client does not trust the proxy's certificate for www.google.com (OpenSSL Error([('SSL routines', '', 'ssl/tls alert certificate unknown')]))

As a result of this (presumably) I am unable to connect my device to the WiFI network as it appears that it can't complete its "Does your device have internet connectivity?" checks. If I switch the Android device back to "None" for its proxy and turn wifi off / on again, I can connect fine to the network. It's only when I run through mitm that I seem to have the issue ("Client TLS handshake failed ^^)

Doe anyone have any suggestions please?

Thanks,

[16:11:52.886][192.168.1.57:44994] server connect www.google.com:443 (142.251.29.99:443)
[16:11:52.924][192.168.1.57:44996] server connect connectivitycheck.gstatic.com:80 (142.251.29.94:80)
[16:11:52.943][192.168.1.57:44996] server disconnect connectivitycheck.gstatic.com:80 (142.251.29.94:80)
[16:11:52.943][192.168.1.57:44996] client disconnect
[16:11:53.043][192.168.1.57:44994] Client TLS handshake failed. The client does not trust the proxy's certificate for www.google.com (OpenSSL Error([('SSL routines', '', 'ssl/tls alert certificate unknown')]))
[16:11:53.045][192.168.1.57:44994] client disconnect
[16:11:53.046][192.168.1.57:44994] server disconnect www.google.com:443 (142.251.29.99:443)
[16:11:53.070][192.168.1.57:44998] client connect
[16:11:53.104][192.168.1.57:44998] server connect www.google.com:80 (142.251.29.99:80)
[16:11:53.142][192.168.1.57:44998] server disconnect www.google.com:80 (142.251.29.99:80)
[16:11:53.146][192.168.1.57:44998] client disconnect
[16:12:25.800][192.168.1.57:46412] client connect
[16:12:25.831][192.168.1.57:46412] server connect connectivitycheck.gstatic.com:80 (142.251.29.94:80)
[16:12:25.852][192.168.1.57:46412] server disconnect connectivitycheck.gstatic.com:80 (142.251.29.94:80)
[16:12:25.853][192.168.1.57:46412] client disconnect
[16:12:26.032][192.168.1.57:46424] client connect
[16:12:26.059][192.168.1.57:46424] server connect www.google.com:443 (142.251.29.99:443)
[16:12:26.217][192.168.1.57:46424] Client TLS handshake failed. The client does not trust the proxy's certificate for www.google.com (OpenSSL Error([('SSL routines', '', 'ssl/tls alert certificate unknown')]))
[16:12:26.220][192.168.1.57:46424] client disconnect
[16:12:26.221][192.168.1.57:46424] server disconnect www.google.com:443 (142.251.29.99:443)
[16:12:26.269][192.168.1.57:46440] client connect
[16:12:26.669][192.168.1.57:46440] server connect www.google.com:80 (142.251.29.99:80)
[16:12:26.709][192.168.1.57:46440] server disconnect www.google.com:80 (142.251.29.99:80)
[16:12:26.711][192.168.1.57:46440] client disconnect