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Solved Advanced TCP/IP Settings, DNS tab, Can't click OK

Discussion in 'Networking' started by wsmacl, Nov 19, 2015.

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  1. wsmacl

    wsmacl Thread Starter

    Jan 2, 2007
    I am using a notebook that came with Windows 7 and upgraded to Windows 10. I noticed this problem 6 months ago (before upgrading to Windows 10), but it was not causing a problem, so I ignored it until now.
    I am trying to switch to other DNS name servers. I set up the new DNS server addresses in the TCP/IPv4 properties, but they were not working. Checking the advances setting, under the DNS tab, I noticed that there is a long set of addresses (from IPconfig it seems to be 8) on the first line in DNS server addresses box. (See image. Note - the bottom two addresses had come over from what I had set up in the TCP/IPv4 properties).
    ScreenHunter_01 Nov. 19 16.32.jpg
    I can not remove this series of addresses. The remove button is not greyed out, but nothing happens when I click it.
    Same with editing it (nothing happens when I click Edit).
    I can add addresses, edit added addresses and remove added addresses.
    I can also move the top line down, but when I click "OK" nothing happens. To close the dialog box I must click Cancel.
    If I open the advanced dialog box and do not click the DNS tab, I can close the dialog box by clicking OK, but once I open the DNS tab, clicking OK will not longer work. Even if I go back to the IP Settings tab, clicking OK will switch it to the DNS tab, but will not close it.

    Anyone have an idea how I can reset this? Or remove this top line of addresses?
    Last edited: Nov 19, 2015
  2. wsmacl

    wsmacl Thread Starter

    Jan 2, 2007
    OK, I figured this out myself. But in case someone else has the problem, here is the solution I figured out.
    The problem was the GUI interface was locking up or not responding correctly, so I figured I had to find a manual way to change (or erase) the DNS servers that were blocking things up. I figured there was probably a way via the command prompt, and in fact, that is how we solved things.
    I started an admin session of the command prompt (Win+X - Command prompt (admin))
    Then I ran the netsh utility (typed netsh).
    From the netsh command prompt I typed:
    "interface ip set dnsservers "Wireless Network Connection" source=dhcp"
    That did the trick. I immediately checked the settings and sure enough the long string of DNS servers was gone.
    BTW, "Wireless Network Connection" was the connection I was having trouble with. This told netsh to switch the DNS server names for that connection back to selecting the DNSservers automatically.
    I could also replaced "source=dhcp" with "static" (Note this is not a valid DNS server) to have it set to that DNS Server. Or I can now go in and change it manually.
    Problem solved!
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