Used to be able to VPN/RDP now i can only VPN

[Tony Girgenti]

Hello.

If i plug my computer at home directly into the cable modem, i can VPN and
RDP to my office without a problem. Win XP Pro SP2.

Now, i brought home a Dell server, installed SBS2003 SP1, no ISA, two nics,
Linksys router, Belkin switch and plugged cable modem into Linksys router.
I also plugged the home computer into the Belkin switch.

Everthing works fine, server and home computers can access internet and
email just being plugged into switch, not really logging onto server, just
staying local.

Problem: Workstation that was able to VPN/RDP, can now VPN but cannot RDP.
Message "The client could not connect to the remote computer" comes up.

If i plug computer into switch or cable modem, i'm back to VPN/RDP. Once i
put it back to switch on network, VPN OK but no RDP.

I have been trying to fix this problem for weeks now. Any help would be
greatly appreciated.

Thanks,
Tony

Here are the IPCONFIG /ALL for the home computer, home SBS2003server and
office SBS2000 server.

Home computer===========================
C:\Documents and Settings\Administrator>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : TONYHOME
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : LakesideOfficeSystemsInc.local

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : LakesideOfficeSystemsInc.local
Description . . . . . . . . . . . : SiS 900 PCI Fast Ethernet
Adapter
Physical Address. . . . . . . . . : 00-D0-09-AF-A1-D6
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.16.11
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.16.2
DHCP Server . . . . . . . . . . . : 192.168.16.2
DNS Servers . . . . . . . . . . . : 192.168.16.2
Primary WINS Server . . . . . . . : 192.168.16.2
Lease Obtained. . . . . . . . . . : Sunday, June 05, 2005 9:11:01 AM
Lease Expires . . . . . . . . . . : Monday, June 13, 2005 9:11:01 AM

Home server==============================
C:\Documents and Settings\Administrator>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : lakeside
Primary Dns Suffix . . . . . . . : LakesideOfficeSystemsInc.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : LakesideOfficeSystemsInc.local

Ethernet adapter Internal Server Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Dual Port Server
Ada
pter
Physical Address. . . . . . . . . : 00-04-23-A5-CF-83
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.16.2
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 192.168.16.2
Primary WINS Server . . . . . . . : 192.168.16.2

Ethernet adapter External Network Connection 2:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Dual Port Server
Ada
pter #2
Physical Address. . . . . . . . . : 00-04-23-A5-CF-82
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.2.15
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.2.1
DNS Servers . . . . . . . . . . . : 192.168.16.2
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Documents and Settings\Administrator>
Office server==============================
C:\Documents and Settings\Administrator>ipconfig /all

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : compexserver
Primary DNS Suffix . . . . . . . : compex.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : compex.local

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com EtherLink III ISA
(3C509b-Combo
)
Physical Address. . . . . . . . . : 00-60-08-A6-40-F6
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.1.1.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 10.1.1.1
66.92.224.2
Primary WINS Server . . . . . . . : 10.1.1.1

Ethernet adapter External:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/100+ Management
Adapter

Physical Address. . . . . . . . . : 00-90-27-9D-64-11
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.1.2
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 66.92.224.2
216.231.41.2

 

[Gabriel Viljoen]

I also have Linksys, the WAG54G, the only thing that helped me was to set my
server as the DMZ host on the router, give that a try.

 

[Leythos]

I also have Linksys, the WAG54G, the only thing that helped me was to set my
server as the DMZ host on the router, give that a try.

Both LAN networks MUST be in different subnets, you can not have both
sides at 192.168.0.0/24 (or anything else that's the same).

You must enable PPTP Pass-Through on your home router. You must port
forward 1723 at the server side into the server, in some linksys units
you must ALSO forward port 47 to the server. The linnksys site has
documents that detail how to setup INBOUND PPTP for most versions.

If you put your server in the DMZ IP, you just exposed it to anyone on
the net.