Rick Martin
asked on
Need help on Windows Firewall blocking program
Hi all,
I'm trying to figure out why Win (7) Firewall is blocking a program from communicating with a "server" PC I have running in a Home network environment.
Set up:
Installed software that allows me monitor appliances (machines) over a VPN. The package consists of a DB based component and a "manager" component. The manager piece allows one to log into the server and query different machines over the VPN tunell.
All works fine on the machine where the DB and Manager program are running locally.
The manager component can be installed on remote PCs to access the DB on the server machine. To test this I installed the Manager app onto a laptop, also wirelessly connected to my Home network.
When I attempt to Log into the Server using the laptop I get a Communication error.
I configured the firewall (Domain, Private & Public (all) profile) on the server machine to accept inbound traffic from a PC wanting to communicate using the Manager software. But I still get the Comm error.
When I turn the firewall off on the server machine I have no problem connecting from the laptop.
With the firewall on and the firewall monitor enabled, I see all the TCP packets being sent from the laptop, dropped.
Here's a snippet of the log: (192.168.1.76 = Server 192.168.1.61 = "remote" Laptop)
2017-02-08 12:01:30 ALLOW UDP fe80::f127:d91f:3fee:8be1 ff02::1:3 58825 5355 0 - - - - - - - SEND
2017-02-08 12:01:30 ALLOW UDP 192.168.1.76 224.0.0.252 64856 5355 0 - - - - - - - SEND
2017-02-08 12:01:31 DROP TCP 192.168.1.61 192.168.1.76 52395 8091 52 S 1517407867 0 8192 - - - RECEIVE
2017-02-08 12:01:34 DROP TCP 192.168.1.61 192.168.1.76 52395 8091 52 S 1517407867 0 8192 - - - RECEIVE
2017-02-08 12:01:35 ALLOW UDP fe80::f127:d91f:3fee:8be1 ff02::1:3 55325 5355 0 - - - - - - - SEND
2017-02-08 12:01:35 ALLOW UDP 192.168.1.76 224.0.0.252 56032 5355 0 - - - - - - - SEND
Is there anything I can to do help identify what is being blocked and why?
Many thanks in advance.
I'm trying to figure out why Win (7) Firewall is blocking a program from communicating with a "server" PC I have running in a Home network environment.
Set up:
Installed software that allows me monitor appliances (machines) over a VPN. The package consists of a DB based component and a "manager" component. The manager piece allows one to log into the server and query different machines over the VPN tunell.
All works fine on the machine where the DB and Manager program are running locally.
The manager component can be installed on remote PCs to access the DB on the server machine. To test this I installed the Manager app onto a laptop, also wirelessly connected to my Home network.
When I attempt to Log into the Server using the laptop I get a Communication error.
I configured the firewall (Domain, Private & Public (all) profile) on the server machine to accept inbound traffic from a PC wanting to communicate using the Manager software. But I still get the Comm error.
When I turn the firewall off on the server machine I have no problem connecting from the laptop.
With the firewall on and the firewall monitor enabled, I see all the TCP packets being sent from the laptop, dropped.
Here's a snippet of the log: (192.168.1.76 = Server 192.168.1.61 = "remote" Laptop)
2017-02-08 12:01:30 ALLOW UDP fe80::f127:d91f:3fee:8be1 ff02::1:3 58825 5355 0 - - - - - - - SEND
2017-02-08 12:01:30 ALLOW UDP 192.168.1.76 224.0.0.252 64856 5355 0 - - - - - - - SEND
2017-02-08 12:01:31 DROP TCP 192.168.1.61 192.168.1.76 52395 8091 52 S 1517407867 0 8192 - - - RECEIVE
2017-02-08 12:01:34 DROP TCP 192.168.1.61 192.168.1.76 52395 8091 52 S 1517407867 0 8192 - - - RECEIVE
2017-02-08 12:01:35 ALLOW UDP fe80::f127:d91f:3fee:8be1 ff02::1:3 55325 5355 0 - - - - - - - SEND
2017-02-08 12:01:35 ALLOW UDP 192.168.1.76 224.0.0.252 56032 5355 0 - - - - - - - SEND
Is there anything I can to do help identify what is being blocked and why?
Many thanks in advance.
ASKER
Shaun,
Thanks for the quick reply! I ran the utility and see no port info. Something that does stand out are some apps returning a "Cannot obtain ownership information". The program I'm trying to connect with is GenRMSmanager.exe.
I've attached the file to show data.
out.txt
Thanks for the quick reply! I ran the utility and see no port info. Something that does stand out are some apps returning a "Cannot obtain ownership information". The program I'm trying to connect with is GenRMSmanager.exe.
I've attached the file to show data.
out.txt
Quick fix is to add ports 52395 and 8091 to firewall (not sure which is inbound and outbound, on my phone :) )
ASKER
Shaun,
That did the trick. Out of curiosity I deleted the 52395 port from the rule and it still connected. Should I keep it this way?
Also, how did you know to add these two ports as exceptions? (I'd like to understand why as opposed to blindly fixing)
Now to test with the laptop from outside my home network....
Thank you!
That did the trick. Out of curiosity I deleted the 52395 port from the rule and it still connected. Should I keep it this way?
Also, how did you know to add these two ports as exceptions? (I'd like to understand why as opposed to blindly fixing)
Now to test with the laptop from outside my home network....
Thank you!
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Awesome. Thank you VERY much!
ASKER
Shaun quickly and thoughtfully answered my question. He also took the time to explain how he arrived at a solution. Thank you!
Open in new window
Is this the EXE that you allowed?