No route to openvpn server when using networkmanager and wireless

Question

Since some weeks I can not connect to openvpn networks via WIFI when using the networkmanager. Connecting manually there is no problem.
When I connect my laptop via LAN (enp0s25) and establish an openvpn connection everything works as expected:
[me@laptop ~]$ ip route show
default via 10.101.2.173 dev tun0 proto static metric 1024
10.101.2.173 dev tun0 proto kernel scope link src 10.101.2.174
172.17.2.0/24 dev enp0s25 proto kernel scope link src 172.17.2.25
172.17.2.0/24 dev enp0s25 proto kernel scope link src 172.17.2.25 metric 203
xxx.xx.xx.xxx via 172.17.2.1 dev enp0s25 proto static metric 1
When connecting to the internet via WIFI (wlp3s0) the VPN connection is established but there is no route to the VPN server:
[me@laptop~]$ ip route show
default via 10.101.2.173 dev tun0 proto static metric 1024
10.101.2.173 dev tun0 proto kernel scope link src 10.101.2.174
172.17.2.0/24 dev wlp3s0 proto kernel scope link src 172.17.2.38
When I add the route manually everything works fine:
ip route add xxx.xx.xx.xxx via 172.17.2.1 dev wlp3s0 proto static metric 1
Any ideas?

Answer 1

There are two problems here. The first is a firewall problem. Although the Open MQ port mapper running on port 7676 wasn't being blocked, the port that mq tcp port was. I was able to solve this by creating an ssh tunnel and specifying a mqtcp connection.
"Table 18–2 Message Broker Addressing Schemes"
http://docs.sun.com/app/docs/doc/820-4916/6ngbm6hp4?a=view#gbnnt
f.setProperty(ConnectionConfiguration.imqAddressList,"mqtcp://" + host + ":32782/jms");This solution is less than ideal, since the mq tcp port can change. In fact, if you reference the original post, you can see it has already changed on me. I could write code to determine what the port is and create my own tunnel, but that doesn't seem worth the effort just yet.
The second problem is the lack of helpful error message. It's the sort of problem where you can't really blame any one party too much. Open MQ and Java are both just reporting the error message that they are given by the operating system. They should do a bit more than that.