Testing network bandwidth with and without F5 connection.

Hi

Is your client hitting your VIP? You can easily find this out by looking as the stats of the VIP - zero them and then try and connect again, if the stats increment then you know you're hitting the VIP. Reading your config, it sounds like it could be a SNAT issue. Does your pool member have a default gateway this is the F5? If not, add SNAT Automap to the VIP config and try again.

Check out the Pool stats as well - this will show you if you are getting both ingress and egress traffic to the pool member. If you are not seeing any return traffic then SNAT will most likely resolve.