I have zonealarm on my system and from time to time it tells me "zonealarm prevented your computer from connecting to port 139 on another computer". I have norton antivirus which is has the latest virus definitions. Did scan and no viruses were found. Zonealarm also state that my computer attempted to access file or printer shares on another computer. I don't have the file and print sharing enable in my network properties. Zonealarm says I have nothing to be concerned about, but I was curious to know why my computer is trying to connect to this port. Also, for some reason whenever I try to post a message sometimes it state that my IP address has been blocked or does not have permission. Do you know the cause of this? My apologies for 2 questions within one forum. Thanks for any replies.

When you first installed Zone Alarm did you set up and grant permission for a local network. The settings that you have on your network settings are completely different from what your network is in Zona Alarm. Go to this website and run "SHIELDSUP" to test your firewall http://grc.com/ To answer your second question, I need to ask a couple of questions. What actions do you have to take to establish the connection? Is it just a simple as just trying again, or do you have to take some other action? If it is another action what is it that you have to do? Does it happen when the computer has not been used for a period of time, say over an hour? Have you opened Zone Alarm and checked in the programs area>components, to see if everything has a green checkmark, or if there might be a blue question mark next to a required item? The items listed in the components list will be quite numerous. You need to scroll down to examine each item to see if it might be incorrectly set.

I ran the shieldsup program and my computer passed the test. How do I set zonealarm to have permission for a LAN? As far as me not being able to post on the forum because of my IP address, the problem usually resolve itself. It is nothing that I do to make it begin to work again. I am on a college university campus on a dynamically set DHCP server. Could be that the new IP address that is given to me whenever the lease run out may be prohibited from the site. Maybe the person that did have this used this site and was prohibited...I don't know. Kind of strange.

Computing.net allowed me to post this message, but last night it wouldn't. I had to go to someone else computer. I have the same IP address that I had last night too.

This is exactly what zonealarm says about my port access: Packet sent from my ip address (TCP Port 3747) to other person's ip address (NetBIOS Session) was blocked The port that it is always trying to access is port 139 of the other person's computer.

I think the reason you keep getting a message is that you have either set Zone Alarm to ask for permission for access, instead of setting it to deny access and do not ask me again. It may also be the setting in the control panel is not correct. You can check those settings by opening the properties for the Local Area Connection and double-click Internet Protocol TCP/IP. Click the Advanced button and then the WINS tab - just set the NetBIOS section at the bottom to default. Remeber what setting changes you have made, just in case they need to be put back to their original settings.

There's nothing that pops up telling me to allow or deny a program even though the way I wrote it may have sounded like that, my apologies. I'm getting this information from whenever I open zone alarm, go to Alerts & Logs, and go to the Log Viewer tab. My NetBIOS within my TCP/IP protocol is already set to default. Thanks for your response, however.