IE 11 Proxy removed now cant access Internet

I have a client that has a windows 7 pro (32-bit) PC running a CNC machine.
In the past, I have configured a proxy (Internet options > Connections tab > LAN settings)
With the box check to bypass proxy for local addresses (so they can access local Intranet, and not the internet)

This works great keeping users from accessing the internet….all good.
Present Day…They have made some upgrades to the CNC machine and support remotes into the PC (from internet) and works on configuring software to work with machine.

Problem now is: when I uncheck the “Use proxy server” in settings, PC will not go back to normal internet access. Doesn’t matter how many times you restart, PC will not access internet and you cannot remote into it.

I have done this trick for years and had no problems (easy-peasy)
Only way I have been able to bring this PC out of this is to issue these commands.

  netsh int ip reset reset.log
  netsh winsock reset reset.log

Then after issuing these commands I have to restart PC and manually add in both network card static settings (IP, Gateway…etc.)
Then all is good until the PC is restarted, then it goes back like it was with the “Use proxy server” check box. PC will access local intranet, but no Internet or remote access. And the “Use proxy server” check box is blank!

Anyone know what is going on here and why this PC is not letting go of these settings.
Don’t know if a reg setting is hanging on or something I am overlooking.

This PC is on a domain, but it is not joined to the domain (stand-a-lone box)
Has Symantec AV, but I can’t see anything wrong with setting here, and all other domain PC have same AV and I can walk over to one of them and run through the “Use proxy server” settings and block internet access and then uncheck the “Use proxy server” settings and back to internet access.

Need an Expert to broaden my horizons!!
Thanks in advance.

    Fubr
FubrIT AdminAsked:
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Tom CieslikIT EngineerCommented:
If you will try tracert command to let say google public DNS what answer you'll get ?

tracert 8.8.8.8
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ITguy565Commented:
Have you checked to ensure there is not a GPO configured to modify these settings on Reboot?
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FubrIT AdminAuthor Commented:
itguy565, no GPO configured (pretty much plain stock windows load)

Tom, I will try the trace route as soon as I can restart the PC, hopefully in the next 20 minutes (in production)
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ITguy565Commented:
Set-ItemProperty -Path "Registry::HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" ProxyEnable -value 0

Try this and see if it holds.
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ITguy565Commented:
If that doesn't work please post the results of this command:

get-ItemProperty -Path "Registry::HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings"
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FubrIT AdminAuthor Commented:
OK, restarted PC and tried the trace route command (8.8.8.8) and all time out (no go)
I can ping internally, but not outside domain
I can browse intranet webpages, but not on internet (google, yahoo, Microsoft...etc.)

itguy565, ran the set-ItemProperty command and tried, but no go
Proxy enabled is set to 0
enclose is screen shot of powershell (sorry couldn't get to copy)
get-ItemProperty -Path "Registry::HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings"

powershell screenshotpowershell.jpg
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ITguy565Commented:
Post ipconfig /all
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FubrIT AdminAuthor Commented:
This box has 2 network cards, one for PC and one for CNC machine
Intel Gigabit CT is for network (PC)
Intel 82579V is for CNC machine

C:\>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : CELL1
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No

Wireless LAN adapter Wireless Network Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Atheros AR9485 Wireless Network Adapter
   Physical Address. . . . . . . . . : DC-85-DE-07-26-67
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter RGV Network:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Intel(R) 82579V Gigabit Network Connectio
n
   Physical Address. . . . . . . . . : 50-46-5D-A3-2C-C3
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.4.1(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.1.1
   DNS Servers . . . . . . . . . . . : 192.168.1.11
                                       192.168.1.12
   Primary WINS Server . . . . . . . : 192.168.1.11
   NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Customer Network:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Intel(R) Gigabit CT Desktop Adapter
   Physical Address. . . . . . . . . : 68-05-CA-17-CC-3A
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.1.181(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.1.1
   DNS Servers . . . . . . . . . . . : 192.168.1.11
                                       192.168.1.12
                                       68.230.242.20
   Primary WINS Server . . . . . . . : 192.168.1.11
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{0F7A8F8C-457C-448E-AB7D-7EA5A10086F7}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{236CEDD8-94EF-4B66-AAAD-6CAE14230C74}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{E609BC17-4A9E-4AD3-89C7-7078D66125E9}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

C:\>
ipconfig_all.txt
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FubrIT AdminAuthor Commented:
just notice on the get-ItemProperty -Path "Registry::HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" info, that there is a proxy set 10.1.30.50   ??
should this show up with no proxy enabled??
(just fishing)

    Fubr
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ITguy565Commented:
That is correct. Do you recognize that address?
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FubrIT AdminAuthor Commented:
yes, I just put it in as a false proxy when I enable the proxy server settings....
There is no real proxy server for that IP (internally)

I was just confused why it is showing up with settings disabled??
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ITguy565Commented:
When Disabled. It will retain the settings so when you re-enable the proxy you don't have to enter the values again.
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ITguy565Commented:
Here are the commands you can use with Proxy.. I would recommend removing the proxy with the following command:

https://martin.hoppenheit.info/blog/2015/set-windows-proxy-with-powershell/


$reg = "HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings"
Remove-ItemProperty -Path $reg -Name ProxyServer
Set-ItemProperty -Path $reg -Name ProxyEnable -Value 0
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ITguy565Commented:
After you run those commands run the

get-ItemProperty -Path "Registry::HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings"

again and let me know if you see that IP still there.
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FubrIT AdminAuthor Commented:
ok, ran the commands, remove proxy, and set value to 0.
still no go
restarted the PC and tried, still no go....same as before.
Got network and Intranet, but no outside access. (no ping, tracert, browser...etc.)

Ran the get-ItemProperty command and the proxy IP was cleared out (see below)

PS_Screenshot
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FubrIT AdminAuthor Commented:
I'm dumbfounded.......  :(
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ITguy565Commented:
Well you said at the beginning of this article that

I have done this trick for years and had no problems (easy-peasy)
Only way I have been able to bring this PC out of this is to issue these commands.

  netsh int ip reset reset.log
  netsh winsock reset reset.log

Then after issuing these commands I have to restart PC and manually add in both network card static settings (IP, Gateway…etc.)

If that is the case, then I am down to rebuilding Winsock


This article is for Windows XP, VISTA but it will also work for Windows 7

http://support.microsoft.com/kb/811259

let me know the results once it has been completed.
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FubrIT AdminAuthor Commented:
but ain't those the commands to reset it? (Winsock)
   netsh int ip reset
   netsh winsock reset

Thought that is what I was doing....LOL
(I do have senor moments)
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ITguy565Commented:
Reset it, yes the article I gave you was to rebuild it.
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Luc FrankenEMEA Server EngineerCommented:
IP address and gateway address are statically set but not in the same subnet. 192.168.4.0/24 and 192.168.1.0/24
Are you sure about the IP configuration on this server?
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Luc FrankenEMEA Server EngineerCommented:
Sorry, forgot to add.
There are two interfaces configured with a gateway address. Remove the gateway from the 192.168.4.0/24 interface. Test afterwards.
If it still doesn't work, please provide a "route print"
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FubrIT AdminAuthor Commented:
itguy565 - rebuild it and still no go.
Even tried removing TCP/IP from properties of network card, restarting  and then reinstalling and restarting again....
Still no go.
Same as was.....
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FubrIT AdminAuthor Commented:
I will look at the gateways now ......
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FubrIT AdminAuthor Commented:
LMAO!!
That Work!!

I remove the gateway on the 2nd NIC (1.4) and it start working with no restart.
Wowser

Thanks LucF, and itguy565 for all your help.
We are testing to make sure all is well with the CNC side, but I think that correct the issue.

   Fubr
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FubrIT AdminAuthor Commented:
LucF,
that fix it, all is working normally now.

   Fubr
1
Luc FrankenEMEA Server EngineerCommented:
Good news!
Regards, LucF
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