Windows 10: IP Addresses not reusable

  1. Posts : 6
    Windows 10 Home
       09 May 2016 #1

    IP Addresses not reusable

    Well this is a strange one.
    I guess it started when I disabled my onboard LAN and installed a third party network card in my PC and couldn't assign it the same IP as the one the previous card had. Fair enough I thought, maybe the card wants to hold onto it. :)

    I then assigned a new address to the new card using DHCP (normally I manually enter all the details). Once an IP address had been assigned I noted it down and then changed the details from DHCP to manual using that IP address.
    It wouldn't let me do it. Just got the yellow exclamation mark on the network icon.
    So I switched it back to DHCP again and it assigned yet another IP address ( OK so I stuck with that.
    Of course now all the ports in my router are assigned to the wrong IP. When I realised that I tried again to manually assign the old IP back on this card ( Naturally it wouldn't do it. So noting that the computer was on .73 I manually re-entered that number. It wouldn't let me have it and again giving me the yellow exclamation mark on the network icon.
    So I just put it on DHCP again and now it's assign

    Seemingly once I assign an IP to my card I can never reuse it again. So what's going on here ? I've never in all my time experienced this one before, but this is Windows 10.

    I dunno if any of this has anything to do with how laggy the computer can get when there is a lot of WAN traffic (downloading). Something's not right.
      My ComputerSystem Spec

  2. RWOne's Avatar
    Posts : 486
    Windows 10 Pro (Mix of Builds) / Linux Mint
       09 May 2016 #2

    What are the settings on the router?

    If you are doing MAC address assignments, then change the MAC for that IP assigned.

    Otherwise, I would reboot the router anyways after changing the IP manually, then reboot the system as well.
      My ComputerSystem Spec

  3. Posts : 6
    Windows 10 Home
    Thread Starter
       09 May 2016 #3

    Will check that as soon as I get home. I am starting to think now that it's a router issue and I have such a crap router too. One that is given by the ISP. I may decide to just grab a Draytek Vigor and use their router in Bridge mode.
    Maybe it's not releasing IP addresses or it's what you said about the MAC addresses.
    Will let you know if that solves it.
      My ComputerSystem Spec

  4. RWOne's Avatar
    Posts : 486
    Windows 10 Pro (Mix of Builds) / Linux Mint
       09 May 2016 #4

    Certainly possible if not releasing IP's.

    As to MAC filtering, I would assume you would remember if you enabled such a scheme on it :)

    Their router the modem as well ? (you mentioned bridge mode for it ...)
      My ComputerSystem Spec

  5. Posts : 6
    Windows 10 Home
    Thread Starter
       09 May 2016 #5

    Yeah I would remember that so no it's not set up that way :)

    It's not in bridge mode yet, just operating as a standard router. But my idea was to buy my own better router and then use theirs in Bridge.
      My ComputerSystem Spec

  6. RWOne's Avatar
    Posts : 486
    Windows 10 Pro (Mix of Builds) / Linux Mint
       09 May 2016 #6

    Ok, figured that.

    I think you missed my point, if the router is supplied by them, and the modem is a separate entity - you can toss theirs entirely...
    (unless they need it back for $$$ at some point, in which case you toss in a box for later return)

    and hook up your own.

    I never use supplied routers from an ISP for home.
      My ComputerSystem Spec

  7. bro67's Avatar
    Posts : 4,917
    Mac OS High Sierra 10.13.5
       11 May 2016 #7

    IPTables on modern Gateways hold the IP for the MAC up to either a reset flush of IPTables or the lease for it is let go after 30 days.

    Only way around it is to assign a MAC to an IP in the Gateway.
      My ComputerSystem Spec

  8. Posts : 6
    Windows 10 Home
    Thread Starter
       11 May 2016 #8

    Yeah mine does that. I've deleted all the unused devices from the gateway now. Such a crap box it is but we have to use it. So this is why I`ll buy a Draytek now and connect it to my gateway which will be put into Bridge mode.
      My ComputerSystem Spec

  9. bro67's Avatar
    Posts : 4,917
    Mac OS High Sierra 10.13.5
       11 May 2016 #9

    Overkill if you ask me. All that I am doing is using a Cisco RV320 for the Edge Router.

    as for what the ISP is leasing to you. You get what you are paying for. All of them nowdays no longer allow for a Bridged mode. You can only place them into DMZ Plus mode.
      My ComputerSystem Spec


Related Threads
Imported mail addresses won't sync in Browsers and Email
Hi everyone. Does microsoft assume everyone is a computer wizard? I've finally managed to import my other email addresses into my mail app but no matter how many times I tweak the settings in privacy etc. I keep getting message "not synced yet"....
Hi, I need to be able to create and distribute secure Windows 10 VMWare virtual machines. I will be encrypting and restricting the VM's using Workstation Pro. I will be providing them to contractors at my company and once they complete their...
I am looking for the old email addreses that come up when I try to download apps in the “metro” of windows 10. I can’t find them in the credential manager of the control panel. So where are they so that I can delete them and use my usable email...
Hi there. knowing how bad large corporations are in testing and roiling out software - especially with the amount of Offshoring and lack of QC done "in the name of Cost reductions" I expect to see these Forums being filled with howls of anguish...
Hi there The new browser (build 10074) can't resolve addresses like localhost or things like (my music server). Is there a way to make IE11 the default browser again. The music server when web control is activated fills in...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd
All times are GMT -5. The time now is 16:02.
Find Us