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  4x4monster 18:01 08 Jun 2017

Been having a problem with my connection on my laptop for a while now, when I am browsing using my default browser (chrome) I get the ERRPROXYCONNECTION_FAILED message and my internet stops working, normally restarting my laptop fixes it but it won't this time. I had this same issue a few months ago and I ended up reinstalling windows onto a fresh hard drive that I installed into my laptop. This fixed the issue for about a month until it has just happened again now.

Running windows 10 pro.

Any ideas?

  4x4monster 18:21 08 Jun 2017

Thanks for the reply, I cannot click on LAN setting, it says some settings are managed by your system administrator? I am the system administrator.

  4x4monster 21:27 08 Jun 2017

Thanks for the help, tried it and its still the same, can't access LAN settings. I was thinking it may be some kind of bug or something, I ran windows defender with issues found on a full scan. What's the best software to use? Weird how this problem has come back after a full reinstall of windows.

  Secret-Squirrel 09:17 09 Jun 2017

I cannot click on LAN setting, it says some settings are managed by your system administrator?

It sounds very much like a policy has been enabled to block your access to your LAN/Proxy settings. It's usually malware that causes this but the infection may have already removed. Anti-malware programs are very good at removing infections but rarely help by returning the user's settings back to what they should be. Try this for me:

Open Regedit then navigate to HKLM\Software\Microsoft\Windows\CurrentVersion\Policies. If the right-hand pane is blank then try HKCU\Software\Microsoft\Windows\CurrentVersion\Policies instead. If anything is shown in the right-hand pane then take a screenshot and post it here for me to look at. Don't delete or modify anything yourself.

  Secret-Squirrel 08:46 10 Jun 2017

As far as I know Dave resetting TCP/IP won't remove any proxy settings.

When the restriction policy I mentioned has been removed he'll be able to turn off the proxy server that's been enabled and his problem should be resolved. It should only take a few mouse clicks so it's not a big job. If the problem reoccurs then he's still infected with something but that can be tackled too if need be.

  4x4monster 10:58 10 Jun 2017

Hi and thanks for all the help so far. Update: I installed and ran a few anti malware programs and found a few infected files, these have now been removed. I can now access the internet again but I still can't access my proxy settings. I'll post some screen shots shortly.

  4x4monster 11:42 10 Jun 2017

  Secret-Squirrel 12:43 10 Jun 2017

Thanks for the screenshots.

Ah, sadly I see that there's nothing of interest in that Registry section. If HKEY-LOCAL-MACHINE was the same as well then try this:

Navigate instead to HKEY-LOCAL-MACHINE\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings and if it contains any keys other than "Default" then post another screenshot please.

  4x4monster 12:54 10 Jun 2017

  Secret-Squirrel 13:29 10 Jun 2017

There's nothing there either. I'm not interested in blank screens that only have a "Default" key. Try looking under HKEY-CURRENT-USER instead.

I initially thought that we'd find that pesky key quickly and could fix your problem. I've only just discovered that restrictions like that can be implemented in various places in the Registry so apologies for all the faff.

  4x4monster 13:51 10 Jun 2017

Its just default in there too

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