TCPOptimizer.exe

Learningman · Post by **Learningman** » Tue Feb 17, 2004 7:32 pm

Hello folks. Sorta desperate here...

I ran TCPOptimizer at the advice of a friend/collegue against my better judgement. I backed up my configuration before I started.

I have a private router based VPN to a large client. Since running TCPOptimizer, I can only ping/connect to the FW that is the other end of my tunnel. I can't ping/touch anything inside that network. I absolutely could before running this "utility".

Now for all the catches:

1) Restored Windows defaults. No go.
2) Restored my backup before I did this. No go.
3) EVERY other machine in my internal HO network can hit that network as they have always EXCEPT this (my) WS.
4) I removed the adapter. Rebooted and let it auto config. No go.
5) Routing table is right. Nothing unusual at all.
6) After the supposed return to Windows (XP) defaults, I foung the AFD reg (parameter) key was there which is not a default. I deleted it. No go.

WTF is happening here?!?! This is the craziest thing I have EVER seen and I've been doing this a LONG time (20+ years) and am supposedly a networking expert. I do designs for Fortune 1000 clients but I am STUMPED.

I was hoping somebody here could shed some light on what this useful utility left behind even after supposedly un-doing what it did since this is where the utility came from.

HELP!!! LOL

cyberskye · Post by **cyberskye** » Tue Feb 17, 2004 10:24 pm

Hi,

Not familiar with this particular tool.

Maybe posting the results of the SG TCP Analyzer test would be useful to approach it from that angle.

The link is at the top-center of this page -
Broadband>broadbandtools>SG Analyzer

Cheers,

Skye

burneco · Post by **burneco** » Sat Feb 21, 2004 5:57 am

Sounds like the "optimizer" screwed up your local VPN encryption algorithm or made some other serious change to your VPN settings. Especially if you are using IPsec. Your best bet is to completely rebuild the VPN connection at both ends

Post by **YeOldeStonecat** » Sat Feb 21, 2004 10:37 am

Haven't had it hose my VPN connections, either Windows native, or Sonicwall Global client. I wonder what it disagreed with in your system.

Hmmm...WinXP...perhaps try to XP restore back to day before the optimizer was run?

JackMDS · Post by **JackMDS** » Sun Feb 22, 2004 11:55 am

Windows stores almost all Settings and configuration information in the Registry.

Most tweaking programs are not programmed to scan the Registry and get rid of the old keys before configuring new Keys.

As a result most of the time that you use Wizards, Tweaks, Reinstalling Programs, and similar activities, Duplicates Registry Keys that might contain conflicting information, at a certain point “Poor Windows can not take it any more and it Gives Up”.

On rare occasions running few Registry cleanup tools helps. But in most cases you need to reinstall WinXP from scratch. Doing so starts a new fresh clean Registry.

.

alexv · Post by **alexv** » Sun Feb 22, 2004 6:13 pm

Can you just re-install your VPN settings? Isn't it a VPN client software you have? I am running Check Point Secure Remote Client to connect to VPN and before applying the Optimizer I just uninstalled the VPN client, run the Optimizer and re-installed the VPN client. This seems to be OK. Can you perform the same of you have some hardware key exchange with your VPN?

Keep me posted.

alexv · Post by **alexv** » Sun Feb 22, 2004 6:24 pm

One more things (even two):
Did you try the Optimizer FAQ adice:
To revert any changes made to your system using the TCP Optimizer, go in its "File" pull-down menu and choose "Restore Windows Default Settings", or even "Restore backed up settings" if you backed up before altering your Registry.

The second, may be uninstall your NIC and re-define all from new, if it's not too much...