Upgrading to 0.63_3 causing 503 Server not Available

[shivamg-42]

I recently upgraded my PFsense and HAProxy on it. After upgrading to the latest haproxy version, whenever I try and reach my servers, I get a 503 Server unavailable. I have not changed anything on the configuration side or the server side. I tried to reinstall haproxy, recreate the frontend and backend in haproxy, and reissue the ACME certificate, and have had no luck. I am not sure what is causing the 503 error.

[zimnysbrain]

Exactly the same problem for me 👎
Hope this will be addressed quickly because websites for example are almost necessary for any activity in the net. Bad bad update!

[shivamg-42]

So I actually ended up fixing this. When I was running 23.09, I had my backed "Encrypt(SSL)" option checked and everything was working as expected. When I upgraded to 24.03, I had to UNCHECK "Encrypt(SSL)" and my services stopped showing the error. I hope this helps you

[zimnysbrain]

Hey
I tried your advice without any luck
I have www server behind pfsense/haproxy
All my backends have valid certificates from pfsense
I also use ssl offloading there
so traffic should be ssl but tried your advice with any luck
This happened after recent pfsense update 24.03

[majesty54]

exactly same here, problem but strangely just for some frontends.
Have to restart haproxy service several times a day
will roll back to 23