Hi James, > I am packet capturing on a client (172.22.0.220, not in the monitor > subnet), browsing to the monitor uri (GET /oowahboh6eibooca) you can > see at 14:08:24 I get a response "200 OK". Then I refresh the page 2 > seconds later at 14:08:26.215969 and at 14:08:26.217989 I get a 404 > response.
You are running HAProxy 1.4.8, which is ancient. Please upgrade to 1.4.23 which contains a ton of bugfixes. Lukas

