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The best way to find this on your network is to sniff the traffic via a program like Wireshark. Filter your Wireshark traffic for BOOTP traffic. Find the DHCP offer requests and find the one that doesn't match your official DHCP server. From there you're going to have to find out how it's connected to your network which depends on your network topology.


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I believe you are looking for: networksetup -deletepppoeservice "Ethernet Adaptor (en156)"


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Even though the credentials were valid, I had configured my server to force all users to reset their passwords after logging in for the first time. So the error message really means: please login to the server interface with your credentials, change your password then come back to Time Machine.


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Many routers prevent discovery between clients. A quick way to make sure it’s not the router configuration blocking discovery would be to connect your computers directly with an Ethernet cable or temporarily connect your Mac to the router with Ethernet and share your internet over wifi. Connect your guest computer to your wifi sharing on your Mac. https://...


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Try executing sudo ifconfig awdl0 up to see if that reenables AWDL. To disable the AWDL interface, type sudo ifconfig awdl0 down. Edit: Executing ifconfig on my Mac, I see: awdl0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1484, and status: active. This shows the awdl interface has been defined and active. If you see status: ...


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I found my rogue DHCP server: it's the cable modem (whose DHCP function is supposedly turned off!). The cable modem is an Arris DG1670A; the router/firewall is a TP-Link WDR-4300. Following the comment from "hohillside," I went into System Preferences this morning, when my iMac came up "bottled," and found that its DHCP address had been ...


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On this Mac OSX, there was the setting "Always Require VPN" on MullvadVPN application. This setting is extremely desirable when on the internet filtering ads and keeping privacy and security, and it is great that it works well. The app changes very deep OSX configurations and the user has no network if not connected to the VPN. This is to avoid ...


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@Tejustin helped me predict that the DeX app and/or Samsung Smart Switch caused this extra modem to appear.


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It was an DNS issue (thanks to @jsbillings for pointing out). Using Cloudflare's DNS is a workaround.


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Many people use alternative DNS servers like Google or Cloudflare. Captive Portals depend on using their own DNS resolution. Try going to Wifi settings and clearing your custom DNS settings. I was at Starbucks and tried the captive.apple.com which did not work and then cleared the custom DNS settings which the portal then did pop up.


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Proxies are not automatically used system-wide. Applications must actively use them. The proxy configuration is applied to your browser, but curl is not affected. To use curl with a proxy, you have to use the -x option to provide the proxy address. Answers to this question may also be of interest to you.


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This problem may be caused by both local networks using the same network mask. For example, if the office network uses 192.168.178.0/24, and the home network uses the same (or one that overlaps with it), then the VPN client cannot setup a dedicated routing, because the IP addresses are not unique. That's why it works when using the hotspot, because then the ...


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While not versed in networking, I was able to find this manpage on arp(8) for reference: -s hostname ether_addr Create an ARP entry for the host called hostname with the Ethernet address ether_addr. The Ethernet address is given as six hex bytes separated by colons. The entry will be permanent unless the word temp is given in the command. If the word pub ...


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The store downloads for apps and updates use the system speed. You can throttle that as a whole, but not for any store downloads. How to simulate slow internet connections on the mac Short term, pause the download if your router can’t assist you. Longer term you might be happy with one Mac on the network subnet caching downloaded content so you only ...


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The open command, opens the file/folder/share using the default application of the the file/folder/share type. In this case Finder. You need the mount command. Try: mkdir MyVolumeName mount_afp afp://username:pw@server.com/MyVolumeName myVolumeName You don't need the mkdir if the mount point already exists as an empty folder. But read the documentation ...


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I think this has to do with the AnyConnect profile file in /opt/cisco/anyconnect/profile/. I played a bit with the attributes there (AutomaticVPNPolicy, AlwaysOn) and was able to quit AnyConnect and access the internet. (Still looking for a better way to switch between VPN and no-VPN modes)


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If the above answer doesn't work for you, you could click the tab on the left of the window that first says about the unidentified network which says "continue with limited setup". I did this yesterday when doing my own setup and eventually, once Windows is installed and you have entered your username, etc. Bootcamp then installed drivers for the ...


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