We couldn't connect to the update service. We'll try again later, or y

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  1. Posts : 432
    10
       #11

    ShadowMario3 said:
    Do you have a VPN that you can connect to? That should fix it.

    For me, it turns out that Comcast's (USA based ISP) DNS can't connect to Microsoft's Update servers at all.

    When I input this in command prompt:
    nslookup ctldl.windowsupdate.com

    The output is:

    Non-authoritative answer: Name: ctldl.windowsupdate.com

    When I input an nslookup with another DNS, such as Google's:

    nslookup ctldl.windowsupdate.com 8.8.8.8

    The proper output is shown:

    Non-authoritative answer:
    Name: a767.dscg3.akamai.net
    Addresses: 2600:1407:1d::685b:a67b
    2600:1407:1d::685b:a68a
    2600:1407:1d::685b:a690
    72.21.81.240
    Aliases: ctldl.windowsupdate.com
    audownload.windowsupdate.nsatc.net
    au.download.windowsupdate.com.edgesuite.net


    Still unknown if this is a Comcast only problem, or a Microsoft problem, since there are people from the UK who have the same issue.
    Well I have Comcast. Funny enough my 8.1 laptop will update fine. So there is that too.
      My Computer


  2. HRC
    Posts : 76
    Windows 10 Home 2004
       #12

    I have comcast and have been getting the can't connect message since early yesterday on all of my computers.
      My Computers


  3. Posts : 579
    Windows10 Home 64 bit v. 22H2 bld. 19045.2604
       #13

    Gee, did anyone contact Comcast for help?
      My Computer


  4. Posts : 31,477
    10 Home x64 (22H2) (10 Pro on 2nd pc)
       #14

    HRC said:
    I have comcast and have been getting the can't connect message since early yesterday on all of my computers.
    It's working now for me in the UK, so the MS servers seem to be OK.

    Redbatman's post shows that you should actually getting the content from an akamai.net server. This is what's called a Content Delivery Network (CDN), a network of local servers that (in theory) allow content to be delivered faster by serving it to you from a local (to you) mirror server rather direct from MS.

    It seems Comcast's DNS lookup may not be connecting you to a CDN. You may be able to connect successfully if you change your DNS server from the Comcast one to one such as Google's 8.8.8.8.

    Change IPv4 and IPv6 DNS Server Address in Windows | Tutorials
      My Computers


  5. Posts : 215
    Windows 10 Home x64
       #15

    The MS techs remotely connected my machine and changed DNS address under IPv4 to 4.2.2.1/4.2.2.2 then it worked although everything is very very slow with updating.
    Go to Network & Internet > Change adapter options > Right click your network device > Properties > Internet Protocol Version 4 (TCP/IPv4) > Change DNS to 8.8.8.8 and 8.8.4.4 per Bree's advice on addresses.
    Last edited by andyouf; 31 Jan 2019 at 03:18.
      My Computer


  6. Posts : 915
    Windows 10 Pro 64bit 22H2 19045.3324
       #16

    Using Comcast here in NorCal and setting the DNS to 8.8.8.8 and a reboot did the trick!
    Thanks @Bree

    Change IPv4 and IPv6 DNS Server Address in Windows | Tutorials
      My Computers


  7. Posts : 2,297
    Windows 10 Pro (64 bit)
       #17

    Things still not ok in UK (BT). Definitions still not downloading. DNS should not be a forced workaround. MS has to fix for the masses
      My Computer


  8. Posts : 1
    Windows 10 home edition
       #18

    Farvatten said:
    Using Comcast here in NorCal and setting the DNS to 8.8.8.8 and a reboot did the trick!
    Thanks @Bree

    Change IPv4 and IPv6 DNS Server Address in Windows | Tutorials
    Tried this and sadly no Fix... Is this actually something on MS or Comcasts end that will be fixed eventually? or is it something that i will need to actually Fix.
      My Computer


  9. Posts : 1,191
    Windows 11 Pro x64
       #19

    DragonskissXXX said:
    Tried this and sadly no Fix... Is this actually something on MS or Comcasts end that will be fixed eventually? or is it something that i will need to actually Fix.
    Define "eventually"
      My Computers


  10. Posts : 1
    Windows 10
       #20

    I am having this problem as well. I believe it has something to do with DNS, because when I switch from my home network to my cellular network by tethering my phone, updates will run. I am at a loss on how to resolve this though.

    Tried the 8.8.8.8 and 8.8.4.4 and it works.
    Last edited by Ksaul505; 31 Jan 2019 at 02:32. Reason: DNS switch worked
      My Computer


 

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