TCP Port 445 issue

Tony January 29, 2009 at 14:48:30
Specs: Windows 2003
VPN Connections works but cannot Map Network Drive from windows vista. It's works sometime, and also takes long time to map the drive. If failed then I get error message about " The TCP Port 445 ". I also checked the w2k3 server and still have problem. I need some help to resove this issue. Please help me...

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#1
January 29, 2009 at 15:08:55
Your message is obsure.

How are you making this vpn connection? Running vpn client software which connects you to a vpn server?

How did you "check" the server? And for what?

Has this ever worked? Who set it up?

Where are you connecting from?


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#2
January 29, 2009 at 15:31:50
I configure RRAS server on w2k3 server. It work sometime but sometimes it's takes long time and then connections failed. I get error message " TCP Port 445 " need to configure from other side. which is server side, there is no firewall enable. I need to resolve this issue, soon as possible.

Thanx


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#3
January 29, 2009 at 17:20:48
Helps to answer ALL of the questions.

Surely you have a router before the server. Did you forward port 445 to the rras ip?


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Related Solutions

#4
January 29, 2009 at 19:54:13
Yes, I do have router and didn't do anything on Router. Only thing I Install/Configure RRAS from server side and VPN Install/Configure client side. It takes long to map the drive, then get error message for the port. I don't know, where to look.

Thanx
Tony


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#5
January 29, 2009 at 21:54:58
TCP 445 is Windows file sharing/RPC port. I do NOT recommend forwarding this to your server as it leaves it wide open for exploits, will slow down your server because everyone and their brother on the Internet will be trying to hack your server when they find out the port is open, and it defeats the purpose of trying to use a VPN for secured communications anyways.

RRAS is tricky and sometimes it can intermittently work and not work even if everything is not setup correctly. One, most importantly, is the router where the server is have the ability t forward protocol 47 (GRE) to the server?

Another thing, are the subnets at both end different? (Example, is one 192.168.1.x and the other 192.168.2.x?) It helps to have them different. If they're the same, routing between the endpoints may get confused because they both "look the same". If they're different, the router know clearly which end is which.

Last, the link below is to a posting I made a while back when I had difficulties getting RRAS on Windows 2003 Server to work. It has some suggestions and links that may be helpful. Good luck.

http://www.computing.net/answers/wi...

Assume that I already did an Internet search.


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#6
January 30, 2009 at 12:40:55
how I can check the port 47 (GRE) forwarding to the VPN server. The problem is I can map network drive, sometimes i don't. RRAS server configure correctly, but I'm still missing and that's why I get error message about " TCP Port 445 ". Please be advised on this:

Thanx
Tony


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#7
January 30, 2009 at 14:18:31
If you look in your routers port forwarding or services options and don't see protocol 47 (not port 47) and/or GRE as an option, then your router doesn't have it. You should look into getting one that does.

You did not answer my questions if the network address (ex. 192.168.1.xxx) is the same at both ends or not.

Assume that I already did an Internet search.


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#8
January 30, 2009 at 20:27:47
No, both IP Address running on static IP.
96.57.133.203 & 96.57.133.204, One for Internal & External. The vpn connections is good, but cannot map network drive and it's takes long time to map, then it's fail with error " TCP Port 445 ".

Thanx
Tony


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#9
January 30, 2009 at 20:33:22
I did not ask if your addresses were static or dynamic. You also gave me two public IP addresses, but you say one is internal and one external. You do not seem to have a firm grasp of the basics of networking to try and employ advanced features such as VPN. I do not think I will be able to help you. Good luck.

Assume that I already did an Internet search.


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#10
January 31, 2009 at 13:50:59
I'm confused here, please you can walk me thru so I can configure correctly my VPN server. The both static IP I have, Please tell how I can make better my VPN server/connnections ? I would like to use your experties ! Please...

Regards
Tony


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