Questions tagged [network]

Questions about configuring, troubleshooting or using connections that one device uses to talk to another.

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Does OS X support SMB Direct (RDMA)?

A pretty fundamental question, that I haven't found any references too on the internet. Here too, searching for "RDMA" or "SMB Direct" returned 0 results. SMB over RDMA technology ...
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Safari can't connect to localhost - Java OAth

I am trying to write a Java code and I'm trying to do OAuth. I created an authentication URL which I'm supposed to go to with Safari with a callback url set as http://LocalHost except Safari said can'...
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USB C to Ethernet on IPad Air 4 in hotel

The wifi in my hotel room has been dropping video calls so I got a USB C to Ethernet adapter and plugged it into my iPad Air 4 running the latest iOS. Ethernet settings appear in the settings app and ...
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How do I reorder outgoing packets?

With Linux, I would use netem and add a delay + reordering rule. I am trying to achieve the same under OS X, but unfortunately, I did not find anything on the pfctl manpage. How can I achieve the ...
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How to fix weird Python and urllib3 behavior with LMP USB-C gigabit ethernet adapter (connection aborted)?

I have this adapter for my Macbook Pro from 2019. I noticed something very strange that I'm debugging now since hours. I am using Ansible to create routes in Kubernetes and the following Ansible task ...
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Can't share ethernet connection of college ethernet on Mac - but can do it on windows without problems

I'm trying to share my college dorm ethernet connection of my Mac over the WiFi of the laptop with internet sharing in MacOs. Previously, I used a Windows pc and could switch on "Hotspot" in ...
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Local DNS not resolving [closed]

Simplified version of my setup is as follows: pi-hole also serving as local dns Asus RT-AC68U resolving dns to pi-hole my nas with the local adress nas.lan macbbook using Big Sur where I experience ...
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How to change DNS on macOS CLI (if i don't know interface name)?

macOS (Catalina) and I want to start IKEv2 VPN client (CLI). Bad luck, ipsec can't change DNS servers. I can add UpDown script and run several commands on VPN up/down. For example, I like networksetup ...
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Are there any tweaks for port forwarding a mobile hotspot connection?

I'm currently using an iPhone 6s jailbroken with unc0ver. I also have an unlimited plan from AT&T, if that matters. I'm using tetherme to unlock tethering, and use it to connect to the internet on ...
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Macbook Pro reconnecting WLAN approx. every hour

I have two almost identical Macbooks Pro (MacBook Pros?) on my desk: Macbook Pro 2019 with 10.15.7 Macbook Pro 2018 with 10.15.7 I have an expensive router with a very stable connection on all ...
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Why is webdavfs_agent consuming 100% of CPU?

I'm getting very high CPU usage whenever I access a WebDAV shared drive (in Mac OS Big Sur v11.1, running on a 2019 MacBookPro 16"). My employer uses a WebDAV server for shared files, and I ...
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Any restrictions on Apple devices that stop connections to local network devices?

I'm a developer (I should properly know this) but are there any settings/restriction features across Apple Products (iOS, macOS, iPadOS etc.) that disallows connections to local networked devices? I ...
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Trying to pair led panel with Iphone

This is a bit of a wild one. I have an led panel which can connect via 2.4ghz to a dedicated remote. I want to know if I can force my iphone to connect to that panel, then connect it to a smart app (...
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Why is one of our Macs unable to print?

Dealing with a weird (and frustrating) printing problem. Household with multiple Macs and one HP networked printer. Two of the Macs can print to it without any issue, one refuses to do so. I'm ...
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How to capture requests of app on ios

I want to see all requests to local network that some app(broadlink E-Control) is doing. I want to see how the app communicate with other devices. P.S:I can modify this network and it's on ios not on ...
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How to watch request of app? [duplicate]

I want to see all requests to local network that app doing. I want to see how the app communicate with other devices. P.S:I can modify this network and it's on ios not on macos.
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Macbook keeps disconnecting from hotspot Wifi, which works well

I've been having this problem for months, and I finally need help. I found other topics on connection problems, but not quite the one I have. When I'm at home I use a Wifi hotspot from my Android ...
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MacBook Pro can't see my android phone WiFi hotspot

My MacBook Pro pro can't see my Android phone wifi hotspot, when I got the phone new the MacBook was seeing the hotspot and I was connecting to it but after some months it stopped seeing the network. ...
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Why is a Time Machine backup so slow over a fast network?

Despite having a gigabit hardwired ethernet connection to my Macbook Air, when I have Time Machine backing up to an iMac also hardwired on the same switch in the same network, the transfer speed is ...
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Slow safari download speed with MacBookPro (Wifi and Lan)

As the title indicates I have huge problems when I want to download files with the Safari web browser. I have a MacBookPro late 2013 with macOS Catalina (10.15.7). I have to say that we basically have ...
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Move network profiles to different network location

I had a little problem in the last weeks because I have to use a static IP address at my work network which caused me problems using my MacBook at home. Now I just found out that macOS offers a ...
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system wide proxy only for certain domains

My Mac is running Catalina. I have an ssh tunnel running on localhost:1234. I would like to proxy all traffic to domain.com through localhost:1234. How can I set up a system-wide proxy to make sure ...
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macOS does not receive IPv6 address from router even though the router has a DHCPv6 server

I've a TP-Link Archer VR400 router which has some support for DHCPv6. There are only a few config option so I selected DHCPv6, starting addresses to be between 1000:0:0:0::1 to FFFE, lease is 86400 ...
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Specifying Network Services with `networksetup`

I am trying to make a script that disabled a network service (ethernet, not wifi), waits 10 seconds, then turn it back on. networksetup -setnetworkserviceenabled [nentworkservice] on|off The command ...
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Change DNS settings of cellular hotspot

I have recently bought a Switch Mini for playing Minecraft portably. However, as I would like to play on servers, I use a DNS server called BedrockConnect, which is utilised by changing the Switch's ...
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Cannot ssh to remote hosts on any port other than 22 from macOS

I recently switched the ssh listen port on my OpenWRT server running Dropbear from 22 to a random one to prevent the system log from being flooded by someone brute-forcing. Everything is fine and I am ...
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macOS does not browse folder on SMB share (folder displayed as light-blue folder)

macOS does not browse a folder on SMB share. The folder displayed as light blue folder. The folder was copied onto this share exactly from the same Mac with the same user. Permissions are 100% okay on ...
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How to configure a route on an iMac's Wi-Fi interface?

I am terrible at network routing. I have an old Squeezebox SB3, whose Wi-Fi card failed some years ago. I removed the WI-Fi card, and it has gathered dust for a while. I am trying to resurrect it. It ...
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How to find out web cam URL string with username/password included, to get snapshot?

I've got an "SV3C 1080P HD Two Way Audio Security Camera" on my LAN. I need to know the format of a 1-line URL that has all the info needed to return an image snapshot. This works, http://10....
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1answer
46 views

Personal Hotspot won't work (connected through cable)

iPhone SE (gen 1). Prior to updating my iOS from 13.x to 14.x I was successfully using Personal Hotspot to connect my laptop to the internet using Lightning-USB cable. Then I updated my iOS to 14.x (...
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Unable to ping DNS any external IP address after reformat and fresh installation of macOS Catalina

I have just completed a reformat and fresh installation of macOS Catalina (10.15.7) on my 2012 Macbook so it can be passed on. The Internet is not working, though. An identical 2012 Macbook is ...
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newsd eating my limited bandwidth

Big Sur 11.1 and iMac Pro. I am on a slow (8Mbps) internet connection and the newsd program is consistently eating up more than 10% of that. I assume it's related to Apple News but can't find any ...
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Latest iMac with 10G Ethernet will not stay connected

I've the latest 2020 iMac with 10Gbps Ethernet. Since day 1, the new iMac's ethernet has been unreliable. I have a switch on my home LAN that only supports up to 1Gbs. All of my other systems have ...
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129 views

How to make Macbook Pro recognise gigabit speed of ethernet adapter dongle via USB-C connection?

It works with up to 100mbps, and it shows in Network as "USB 10/100LAN", but I know it can do up to 1000mbps, but when trying to add + a new interface, the "USB 10/100/1000 LAN" ...
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using Murus 2 how do I route all traffic to and from a domain through a proxy?

I have a proxy at socks5://localhost:1234. I have various applications communicating with mydomain.com. Using Murus 2, how do I make sure all traffic on my machine coming from or going to mydomain....
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1answer
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How do I add locally hosted DNS server while preserving default LAN DNS

My question is very similar to How do I add custom DNS server and preserving default DNS of ISP in OS X Mountain Lion however I am looking to filter and resolve all dns requests via my resolver, so ...
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What is local.blackjack from Netstat?

When running netstat I noticed the suspicious name blackjack. I wonder if it's malware. PROMPT> netstat -v Active Internet connections Proto Recv-Q Send-Q Local Address Foreign Address ...
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Use DHCP for WiFi for all TCP/IP settings except default gateway

My Mac is connected via Ethernet to a router (with internet access through corporate VPN) and to home WiFi where all my devices live in. So I want my Mac to get all TCP/IP settings for home WiFi via ...
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245 views

macOS Big Sur Macbook does not respond to ping on neither ethernet or WiFi

I cannot ping my mac that is running macOS Big Sur 11.0.1 It seems to receive the ping packages but does not respond to them, and yes: Firewall is off I have tried turning stealth mode on and off I ...
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1answer
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Adding external wired NAS to Time Capsule

First, I have none of this equipment, so I can't just test it and see ..Yet. I Know I could hack a Time Capsule into a RaidBox via SATA/eSATA connector, But that's not the route I'd like to go. If you ...
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What are all these network devices on my Mac? [duplicate]

I have a 2019 iMac (running Big Sur)with three physical Ethernet ports; one is the built-in port and two more are located on Thunderbolt devices I have attached. When I run ifconfig, I get two whole ...
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1answer
47 views

Using Windows Connection Manager based VPN on macOS

IT department of my company sent me a zip file for connecting to our corporate VPN. I understand that it is a deployable Windows VPN client called “Connection Manager” and it was prepared with Windows ...
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Can't connect to any apple servers, third party apps have trouble connecting

Problem I can't login to iCloud, Itunes, App Store on my Macbook Accessing the App Store app displays a 'Cannot connect to App Store' message Attempting to sign in by going to [System Preferences > ...
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1answer
114 views

How can one re-create Apple’s defunct ‘Back To My Mac’ service with specific open-source tools?

Question: how can one re-create Apple’s defunct ‘Back To My Mac’ service with specific open-source tools or, if necessary, with limited custom (non-commercial) software? (Ideally, this would be done ...
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138 views

Troubleshoot slow Big Sur wired network

The wired network on my iMac is uncomfortably slow. Google's speed test (just for one quick and easy metric) frequently dips down to about 1 Mbps for downloads. A separate laptop on the same network ...
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Unable to receive packets onto utun interface?

I'm using the NetworkExtension framework to create a virtual utun interface. My application receives packets from a client and the application writes the packet into the utun interface. Since I have ...
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1answer
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internet sharing (mojave) AND two-way connection

I apologize for any confusion bc of the subject line. Explanation: I am sharing a wireless connection on a Mojave MBP 2012 (ethernet/thunderbolt/USB) with a PC running Win10. The PC is able to surf, ...
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1answer
44 views

Failure to reconnect to networks on iOS

Since installing iOS 14.0 (now 14.2) my iPhone XS repeatedly fails to reconnect to my network after returning from being out of range (e.g., on a walk) and frequently loses the network connection ...
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.mobileconfig profile creation for IKEv2 VPN connection

I've created a .mobileconfig profile using Apple Configurator 2 to set up a IKEv2 VPN profile on macOS and iOS devices. (I need to use the configurator since it allows to set all the required settings ...
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1answer
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Display the current network use (upload and download) in the notification bar on iPad

I'm looking for a program for iPadOS 13.7 compatible with ipad pro 9.7 inch (2016) that displays the current network use (upload and download) in the notification bar. The program should be gratis (...

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