When you set your pool (pool member) to "All service" you have to make sure in your VS that you uncheck "Port Translation".
If you let port translation check, that's mean that VS translate user destination port to poolmember destination port. and if your pool memeber is set to all service, ths port translation can't be done.
So to resume if you set pool memeber to all service you have to uncheck "Port Translation" in you VS...
hope it's clear. keep me in touch.
Thank you Youssef for the reply to my query. Regarding this statement "if your pool memeber is set to all service, ths port translation can't be done?. In my case, Client side request will always be http/https and behind the F5, it can be 8080 and 9080; will the port translation happen from https/http to 8080 or 9080 if I uncheck "Port Translation"