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macrumors newbie
Original poster
Jan 30, 2012
For iphone owners that are on carriers which charge for tethering (read: most of, if not all of the U.S.) you may have been quick enough to buy QuasiDisk yesterday from the app store. Achieving tethering functionality with QuasiDisk isn't exactly strait-forward and this guide posted to youtube left a few area's unclear. I think it's more of a proof-of-concept video than an actual tutorial. The uploader spent a lot of time showing that the IP address on the phone was the same as the machine he was tethering to. I appreciate this, but 75 percent of the video is IP address checking and then kind of just breezing through the details of how to get this app to function. Hopefully this guide will help clear up any details.

Thanks to forum members OneMike and abUser Name from this thread. This tutorial would be a bit more convoluted without your tips and help.

First and formost, this app will not allow you to tether an ipad to your iphone. This is by far the most common question I've seen asked. It's now largely irrelevant as the app has been pulled, but I think it's still worth mentioning.

Second, sorry Windows users, I do not know how to get this to tether with a PC.

Ok, let's begin, shall we?

The first thing you're going to do is open QuasiDisk, tap the Wi-Fi icon and get the server name of your phone. Seen here:


The name of my server is "deano.local".

Once you have that, go to the computer you want to tether. Open "System Preferences" and go to "Network" to create a new location.


We're going to create an a new location for two reasons. First, enabling proxy settings on your wifi connection can cause problems with your internet connection when it's not tethered to your iphone. Second, it's inconvenient to be clicking these settings on and off. This will allow us to easily switch between and keep our tethering settings and regular connection settings separate.


Once the new location is named (I cleverly named my new location "Tether") select your Wifi connection and click on the "Advanced" button. Then go to the "Proxies" tab, seen below.


Check off "Web Proxy (HTTP)", "Secure Web Proxy (HTTPS)", and "SOCKS Proxy". In each of these proxies, enter your iphones server name, seen here as "deano.local". For "Web Proxy (HTTP)" and "Secure Web Proxy (HTTPS)" the port is 6666, as seen in the screen shot. The "SOCKS Proxy" port should be entered as 5050.

Click "OK" in the Proxy settings tab and then click "Apply" in Network Settings.

Next, we're going to create an Ad Hoc network by selecting "Create Network" from the "Network Name" drop down in Network Settings. Name your new network (Seen as "Tether" here) and click OK.



If everything is set up correctly, that should be it for any settings on the machine you're tethering. Next, go to your iphone's Settings, tap "Wi-Fi" and then tap "Tether" (or whatever you chose to name your network) to connect to the network you just created.


Then, open QuasiDisk, go to the Wi-Fi settings (if you didn't close out if it earlier, the app may just open to the Wi-Fi settings). Make sure "Anonymous Login" is switched to "Off" and switch "FTP Server" to "On". DO NOT TAP THE "DONE" BUTTON. The Wi-Fi settings screen must be left up and QuasiDisk must be left open for the tethering function to work. Don't put your phone to sleep, either.


Allow a moment for the things to do the stuff and the internet to travel through the air and such. At this point your computer should have an internet connection. You can see a visualization of your network traffic using the "Activity Monitor" program in OS X.

Please feel free to PM me or post a reply with any thoughts, ideas, changes, etc. that can be made to this tutorial. I hope those of you with QuasiDisk find it helpful.
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macrumors 6502a
Feb 7, 2006
Can you re-upload the server name photo. I got this working, but want to send the link to a friend. Thanks!


macrumors newbie
Original poster
Jan 30, 2012
Can you re-upload the server name photo. I got this working, but want to send the link to a friend. Thanks!

Not sure why that stopped working. Strange. Anyway, it's back up. Also, it's essentially the same screenshot as the last one in the post. Cheers.


macrumors 65816
Aug 26, 2008
Just to be clear, is there is no way to tether this to an ipad or other wifi device??


macrumors newbie
Feb 1, 2012

Does anyone know if this works on Verizon's network? I have tried it every way possible and could not get it to work. I started digging deeper and found some articles on how Verizon knows when you are trying to tether your phone. Somehow they identify that your tethering and will redirect you to their website telling you if you want to tether you'll have upgrade your plan. Though this didn't happen when I was trying it, the browser would sit for awhile trying to connect and then eventually it would say something about unable to connect to the proxy. Any help is appreciated.
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macrumors newbie
Feb 1, 2012
Few things

- works fine on Verizon. No issues, yet

While iPad can't initiate the required wifi ad hoc network, can an iPad join in (properly proxy configured) to a laptop created setup with quasidisk iPhone?

Does anyone have a how to on making osx mail work, non terminal if possible. Is there a reason while smtp ports proxy enable would not work?

Thanks for adding the https to this improved tutorial
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macrumors newbie
Feb 2, 2012
Windows 7 Instructions Quasidisk

Hi Thanks for the Mac instructions, they enabled me with a few other google searches to get it working on Windows 7. So being nice I thought I would share.

  • Connect iPhone and PC using usb cable (this seemed to be the only way I could get it to work) and no one else seems to suggest this is important.
  • On W7 create an ad-hoc network
  • On iPhone connect to the ad hoc network, then click the right facing arrow to see more info on the network and nnote the IP address you have been assigned by the W7 machine
  • Launch Quasidisk
  • set the port to 5100 and anon log in to off, leave the app on this screen
  • Open firefox, options -> advanced -> network -> settings
  • choose Manual proxy configuration and enter the IP address of the iPhone from the earlier step and port 6666 in the 2 top most text entry boxes, then tick use this proxy for all protocols.
  • click ok and then ok
  • and you should now be able to browse using your 3G data.

If you want to be able to do the same in all applications then I believe making similar changes in the control panel -> internet options should do much the same.

best of luck, message me if I can be of further assistance.


macrumors newbie
Sep 27, 2011
Quasi Disk Win 7 & Lion help

Tried it on both OS, followed all of the instructions, but still can't get it to work??

Please Help!!


macrumors newbie
Feb 15, 2012
Thank You for Doing This

Your Quasidisk tethering tutorial is very help and well done.
Despite that however I am still having a problem connecting. I have followed your directions very carefully several times but I still get this error message:
Wi-Fi has the self-assigned IP address and will not be able to connect to the Internet.
I am not sure where to go from here. Any help you could provide would be greatly appreciated.


macrumors member
Feb 13, 2002
Has anyone been using this app since it came out regularly? Would be interested to know if anyone has been slapped on the wrist by AT&T for using it? I bought the app but haven't used it to tether my macbook yet.


macrumors newbie
May 4, 2012
Am I doing something wrong?

Hello all, the Internet for the entire area I live in is down except for the cell networks, so I am desperate to get quasidisk tethering working. I followed the instructions here exactly, to connect my iPhone 5 with my MacBook Pro running 10.7.5, but no dice.

In the Network window it says "WI-FI has the self-assigned IP address is and will not be able to connect to the Internet"

The phone to laptop network seems like it is connected but no Internet.

All help is appreciated.


macrumors newbie
Nov 13, 2013

Has anyone been able to get this to work with Mavericks? I've used it on 10.6 and 10.8 without any trouble, but since I've updated I haven't been able to get it to work since :(
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