Hi all. For quite some times I've been using Zone Alarm, the basic version not the Pro.As much as I can recall, I nerver had any problem going into Multiplayer when it was active.Lately, I have installed the latest ZA version (5.0.590.43) and now, I can't access MP and/or FSNav without shutting ZA off first. If I shut it off then it's ok. I'd prefer it'd be active though.Thanks for any clues on an MSFS or ZA switch.Hugo

Hugo,Just today I saw posts in the Vatsim newsgroup at simflight.com Apparently there is an issue with version 5 of Zone Alarm and the fix seems to be to revert to the latest free version. Hope this helps.

Thanks. Found the post. I tried inserting FS9 as a trusted program but would not work either. Funny, I can act as an host though :-hmmm.I should revert to ver 4.5 but dosen't seam to be available anymore.A couple days ago, as I reinstalled V 5.05 I decided to clean all the previous versions I had on my drive. Down to ver 2.x I think :-roll The story of my life!Hugo