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Remote Desktop Connection through SonicWall TZ-105

Hello my friends,

In my mind this should be EASY, but for whatever reason I am not seeing what is causing this to fail... Allow me to lay out all I've done.


I took over IT for a small lawfirm,  they were using an old linksys home router as their gateway.   They had 5 unmanaged switches running all over the building and a storm came and caused all kinds of ports to die one night...

So I bought a nice new Dlink Single Gigabit unmanaged switch, ran all new CAT5 for everything to ONE location, and placed a SonicWall TZ-105 in place of the old linksys.

Their internal workflow network and normal internet access is fully restored and working like it should...like it used to before the storm.

So in my mind, the ONLY real change here is the SonicWall.

before the storm:
Each attorney uses standard windows Remote Desktop Connection via windows 7 to remote into their office PC and do work
Each pc has a set port assigned, we're talking SIMPLE setup here, no SSL, no complex security beforehand...just straight RDP

Here's what I've done:

I verified that the win7 box is showing RDP is enabled and the port is set in the firewall. Verified the username.
I used the video from Shrike to set simple port forwarding by setting the port's UDP and TCP ports in service objects and made a service group and then setup VIA the SonicWall's wizard the server by choosing the fore mentioned services I created.

Behavior....

I launch the RDP utility, set the IP and port, and click connect...  it churns for about ten seconds then fails. (NOTE:  I turned off the firewall on the win7 box to see if the bahavior changed, it did not)

If I change ports, or IP's in the RDP utility settings...it fails almost instantly...leaving me to believe that I've got part of this setup correct.

I KNOW that if i can just get ONE of these machines to accept the connection it will be GRAVY to get the rest of them working....

WHAT am i missing here?

I've read tons of posts and forums, nothing makes sense as they're all taking about SSL certificates, and the like....forget all that!  I just want to connect the machines first, then I'll add layers of security afterwards and by that process I will know what issue I'm hitting but for now strip all the crap away and just get it to connect .....that's where I'm at guys.

I've churned through SonicWall's forums, all worthless info...too many guys trying to out HEAD each other.  Everyone is trying to one up the next guy and quite frankly I don't need ego, I need a simple connection.

I'll admit this is my first SonicWall experience, but I've been doing port forwarding for YEARS...DECADES...and never have trouble.  I feel like I'm in some kind of twilight zone here.  Sonic wall's object based setup wouldn't be as bad if they used common terminology but they like to use their own words for some stuff and I'm sure this creates some of my confusion.  

The video I used to setup my first attempt was here...

http://youtu.be/p1T-iAblitw   This case he used to forward a set of ports, maybe I need to do more than just a single port for RDP?  I will also admit my RDP experience has not been so well oiled as none of my customers wanted it until now....But we're talking simple connection here! lol It's not complicated....or not supposed to be.

Ike

P.s. Sorry for sounding frustrated....I just feel like it's not supposed to be so difficult
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tmoore1962

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DEAD ON FIXED!  Thank you!  The previous guy had the wrong port setup via registry than what was listed on his "notes" pages!!!! (I've never done it that way, just used standard default port)

YOU SIR ROCK!  

I changed the port setting to match my SonicWall setup and after rebooting the pc, it connected instantly.