I can reproduce this with stock bionic (plus updates applied).
==> /var/log/apache2/error.log <== [Thu Jun 27 19:37:43.049064 2019] [ssl:error] [pid 3084:tid 140343919978240] [client 10.0.100.1:45036] AH02261: Re-negotiation handshake failed
It's a bit complicated to setup, as usual with SSL certificates, but doable.
Let me try the ppa now.
I can reproduce this with stock bionic (plus updates applied).
==> /var/log/ apache2/ error.log <==
[Thu Jun 27 19:37:43.049064 2019] [ssl:error] [pid 3084:tid 140343919978240] [client 10.0.100.1:45036] AH02261: Re-negotiation handshake failed
It's a bit complicated to setup, as usual with SSL certificates, but doable.
Let me try the ppa now.