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

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22 views

Wifi network seeing regular and unexpected errors (10.11.5, MBP11,5)

I have a monitor picking up changes in netstat -s errors. Here is a typical block: 330 > 331 times recovered from bad retransmission using DSACK 20227 > 20327 dropped due to full socket ...
1
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0answers
20 views

One Mac can print to network printer, one cannot

I have a mid-2010 Macbook Pro running El Capitan (IP: 192.168.1.65) and a newer Macbook Air (~2014) (IP: 192.168.1.71) running El Capitan. Both are connected wirelessly to the same network: a U-Verse ...
0
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0answers
6 views

What could cause a weirdly irregular throughput problem with two Time Capsules?

I've been mystified by a problem with weirdly inconsistent throughput (i.e. write/read speeds) involving my two time capsules, which consist of a third-gen 1TB unit and a fourth-gen 2TB unit. The ...
1
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3answers
20 views

Is there a simple way to temporarily grant network access to a single application?

Is it possible to only allow one single application to access the network connection, excluding all other applications from generating network traffic. Streaming video or music locally over the ...
1
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0answers
27 views

Can't connect my iPad to the localhost of my Mac

I want to access the localhost of my Mac from my iPad. From my Mac, the address is http://localhost:8888. Through IP address The Mac and the iPad are connected to the same Wifi network. The IP ...
0
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0answers
32 views

Local LAN network does not connect after turning off wireless in Yosemite 10.10.5

The title says it: if I disconnect my Wifi the network does not come up on the cable LAN, unless if I reboot the system. Any fix for this, or workaround? Update 1: I get this data on my local LAN ...
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0answers
27 views

WiFi slow down drastically when iPhone 6s connected

Good day everyone.. (not good for me obviously) I have questions about my iPhone 6s (iOS 9.3.2) connecting to my TP-Link Router (Model No. TL-WR740N / TL-WR740ND) and its performance. Whenever I ...
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2answers
37 views

I don't have 802.11n on my Mac [on hold]

I face a problem with my Mac , it was normal, but 2 days ago I was just shocked when I can't find wireless network on adapters list.
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0answers
3 views

how to avoid root elevation dialog using SCNetworkInterfaceForceConfigurationRefresh in MAC 10.11 [migrated]

Our App tries to perform DHCP refresh without popping up for elevating user credential. We have seen the SCNetworkConfiguration api has some functions to achive this. in the apple developer site . ...
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0answers
24 views

Force OSX to switch to the wifi access point with the strongest signal

I have two wifi hotspots set up. Comcast X1 Router (Wireless Gateway 1) and an Airport Extreme. Both networks are set up with the same SSID, passphrase, and WPA2 Personal. Unfortunately, the wifi ...
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0answers
36 views

All wifi connection receive self-signed IP address [closed]

My home network consists of a cable modem/router combo, and 2 other WAPs connected in different areas of the house. One of the WAPs works perfectly fine, but the other simply will not hand out an IP ...
1
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0answers
36 views

How to create Wi-Fi hotspot on OS X without having a connection?

I need to create a Wi-Fi hotspot on my OS X machine with no internet connection. I need this in order to locally connect my Android smartphone via the hotspot and control the machine via an app ...
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0answers
8 views

How to implement a large Aiport Express network

I have set up quite a few (simple) Airport networks in my life. Well, setup might not be the right wording; attaching a couple of Airport Expresses into the power, launch Airport Utility and go. Now ...
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0answers
19 views

Disable Keychain dialogs when using proxy server

Every time I use proxy, AuthBrokerAgent starts up and I have to allow him to use confidential information stored in my Keychain. I disabled the AuthBrokerAgent, but now every single app wants me to ...
0
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0answers
11 views

Netgear N300 (C3000) drops Wi-Fi connection with Macbook Pro

I purchased a new Netgear N300 Wi-Fi DOCSIS 3.0 Cable Modem Router (C3000). It is a cable modem with Wi-Fi. The Wi-Fi connection works fine on all my mobile devices like iPhone, iPad except for my ...
1
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1answer
91 views

How to Mimic Location of Slave VPN for Primary VPN?

I would like to mimic the location of my primary VPN by the second VPN ("slave"). My mobile internet and data comes from Finland because it is cheap. I need to connect to my school's VPN server in ...
0
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0answers
21 views

“RNDIS/Ethernet Gadget” Share Internet

I've connected my Pi Zero over USB to my OS X laptop and under Preferences -> Network it shows up as RNDIS/Ethernet Gadget, with a self assigned IP. It says that RNDIS/Ethernet Gadget has a ...
0
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1answer
16 views

Serve Application from my Mac over LAN

I am trying to serve an application I'm developing over the LAN at work. I'm doing this using Apache and this is working fine locally, but when I try to access from another client on the network the ...
1
vote
3answers
52 views

Easily disable/enable all network connectivity [duplicate]

My work involves trying stuff online and offline, on a Mac. Sometimes a try can be less than 10 seconds of needed offline time. Most of the time I still need to be online. Instead of going to Network ...
0
votes
2answers
28 views

How can I monitor network in OS X?

I met a problem recently. Sometimes the Google shows me a page says that my computer is sending frequent requests to Google so that I must enter the number in the picture to continue to use Google's ...
0
votes
1answer
44 views

how to place file inside /sbin/ in MAC 10.11 during .pkg installation

We have been installing / placing a tool for dhcp refresh under /sbin till MAC 10.10 there were no issues. but now it is completely blocked. even with root privilege i cannot able to place it. Any way ...
0
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0answers
13 views

Connect to network in Single-user mode

I need to use some commands, e.g. curl, in Single-user mode, but by default they doesn't work. I tried this: launchctl load /System/Library/LaunchDaemons/com.apple.kextd.plist launchctl load ...
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0answers
26 views

How can I resolve my nsurlsessiond issue?

There are a few other questions concerning nsurlsessiond, but none of them have resolved my issue. The issue is that an nsurlsessiond process is killing my bandwidth by downloading continuously while ...
1
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1answer
35 views

Why doesn't the iOS status-bar network activity indicator show all activity?

I have noticed that the spinning network activity indicator doesn't always show up when I know it's using the network. For example, I have my iPhone SE and my iPad 2 both downloading iOS 9.3.2 right ...
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0answers
17 views

Hosts with both gigabit and 10GBE NICs

I have both a gigabit network (all Mac Pros, gigabit switch) and a 10gig network (subset of hosts using Sonnet Twin 10G adapters, 10BGbase-T switch). How do I get machine pairs where both have 10gig ...
0
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0answers
25 views

Wifi connection often takes priority over Ethernet [duplicate]

I'm using an Apple Thunderbolt Display for network Ethernet connection of my MBPr 15 and I often experience something that is very odd. Ethernet has top priority on my network list (i.e. it's not ...
0
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0answers
10 views

network - Internet connectivity drops intermittently on El Capitan [duplicate]

I have exactly the issues outlined in these two posts - has anyone got any solutions to this kind of issue? Internet connectivity drops intermittently on El Capitan ...
0
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0answers
15 views

Tunnelblick - automatic reconnect without logging in

Using OpenVPN, I have set up remote access to the Mac workstation and it works flawlessly - as long as the computer doesn't go to sleep. I can wake it with wake on lan from another computer, that is ...
0
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0answers
28 views

“Backup Disk Not Available”, Time Machine can't find Time Capsule any more

I have a 2 TB Time Capsule and it was used by Time Machine for many months. Some days ago the Time Capsule was disconnected from its power supply and today is now connected again. Time Machine ...
1
vote
1answer
9 views

Transfer statistics per process or destination, not interface

I would like to log upload statistics for an application I run on my Mac. Now, I know that with netstat -ib I can access statistics per network interface. I also know that with lsof -i I can get a ...
0
votes
1answer
22 views

Is there a limit on remembered Wi-Fi networks?

Is there a limit to the number of Wi-Fi networks I can save on my iPhone? I travel a lot for work and want to save the Wi-Fi networks from all of those locations (over 100), so it automatically ...
1
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0answers
36 views

How To Fix Time-Warner Cable Connections with Mac Laptops

I have an extremely tough problem that's hard to chase down. My father-in-law, George, has a Mac Book Pro here in the USA that he bought this year (2016) with Yosemite on it from Best Buy. I haven't ...
0
votes
1answer
29 views

NFS Mount failed and now it says `Device not configured`

I have Macbook Pro 2015, running El Capitan 10.11.1 and I am having issues with NFS mounts. I also have an Android TV Box and it mounts NFS without any issues, so I guess the issue is with my laptop. ...
0
votes
1answer
25 views

How can I diagnose what is interfering with my Wifi signal?

I have a mysterious process on my Macbook pro which I can't isolate which comes around every 5 seconds and interferes with my connectivity. My ping history looks like this: 4 bytes from ...
1
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0answers
22 views

Test ethernet cable quality

Is there a way to test an ethernet cable quality signal in a MacBook Pro retina with a thunderbolt adapter? I've searched many places but all I can find is configuration issues. My configuration is ...
0
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0answers
12 views

Can't receive ICMP echo replies from outside of local network in El Capitan

I'm observing the weirdest thing. I can't receive any ICMP echo replies from hosts outside of my local network on my MacBook running El Capitan. Pinging hosts within my local network (my router and ...
0
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0answers
14 views

El Capitan: How do I stop connecting to another machine via my icloud account?

Since upgrading to 10.11, when I browse my network, I am automatically connected to my other machine as my iCloud/Apple account. This prevents me from accessing shares properly through the Bonjour ...
0
votes
1answer
41 views

Macbook bad internet connection WIFI

I rented a room in a shared house (we are in 5). What I've noticed is from my room the internet connection is really bad (sometimes it doesn't even load the google homepage). My guess is not that the ...
0
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0answers
34 views

How can I use a Gigaware USB to Ethernet adapter on my MacBook Pro, running OS X El Capitan?

I recently bought a Gigaware USB to 10/100 mbps Ethernet adapter to connect my Mac to the Internet. I have followed the instructions that came with my adapter and installed the drivers. In System ...
0
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0answers
27 views

How can you import Wireless Network (WiFi) passwords / settings to Mac OSX 10.10 from a text, html or xml file?

I'm trying to transfer WiFi settings of saved networks from a Windows PC to a Macbook. I have exported the wireless settings via the freeware WirelessKeyView to a txt file (can also be created as a ...
0
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0answers
18 views

Only allow DHCP for Thunderbolt Ethernet After WiFi Connection is Authorized

My company uses MAC address to assign IP over DHCP. We also have a bunch of MacBook Pro paired with Thunderbolt. For security concerns, we are disabling IP assignment for Thunderbolt Display as any ...
0
votes
1answer
77 views

Can't connect to Samba Share on Linux File Server as a Guest user

I have a File Server (Linux, Mint) running Samba which allows Windows machines on the network to connect as a Guest and read / write files to the shared folder. I have a Mac book running El Capitan. ...
0
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0answers
18 views

How to connect an internal network to a captive portal

I live on a boat traveling around Europe. I'm using an Engenius ENS202EXT to search for public networks. The Engenius has the IP number 176.16.10.5. It is configured as a client router and I can see ...
0
votes
1answer
16 views

Reverse SSH tunnel daemon

I own a Macintosh laptop (10.11.2) that I would like to create a permanent reverse SSH tunnel. This way, when I switch network, or the computer is stolen, I can remotely SSH into the device ...
4
votes
2answers
67 views

An unknown computer is – sometimes – shown in my Finder

In the attached picture you can see the name of an unknown computer (desktop-aqnpumc) in my network. "Delat" means shared and SuperNova is my own TimeCapsule which is shown in Finder. I cannot ...
0
votes
1answer
19 views

problem with installing Network Storage drivers

i have a problem with accessing to my iomega-ix2 network storage. when i read the manual, i found that i have to download and install certain files (download link is in the bottom) so when i download ...
0
votes
0answers
61 views

DNS resolution for a hostname in local network fails

From my OS X 10.11.4, I do: ping ubuntu-workstation ping: cannot resolve ubuntu-workstation: Unknown host However, if I do the same from a windows laptop, the call is successfully resolved. The ...
0
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0answers
14 views

iMac 2008 21.5" screen, slow internet

As the title explains, my iMac is being particularly slow compared to my windows machine. As I can get x3 the speed on my PC, is there any settings here I'm missing? Also I'm using ethernet, same as ...
7
votes
1answer
445 views

How to get the geolocation of an IP address in Terminal?

Is it possible to get the geolocation of an IP address in Terminal? Not sure what the numbers in an IP address mean, but there must be some logic behind it, so lookup can't be that hard.
0
votes
1answer
17 views

How to send only “work” related requests over vpn for El Capitan (10.11)

I have configured a new VPN connection (Type - Cisco IPSec) for work using network preferences and it works. How can I stay connected to my work vpn and direct only my work traffic through vpn? ...