Sabai Operating System

The Sabai operating system is our own unique twist on Tomato. Sabai is especially proud to bring you dual gateway on this easy to use VPN Router operating system.

Troubleshoot Tuesday: Sabai Technology VPN Routers Introduce Solution For Business Travelers

Few people going online these days haven’t used a hotel WiFi hotspot to connect to the internet.  We often don’t consider what risks we are taking when we connect in our hotel rooms.  Everything you do on public WiFi is visible.  Whether it is a completely open network or password protected, if you are connected, it is possible for others on the network to view your traffic.  For business travelers this is especially scary.  No one wants to be known around the office as the person who exposed all their company’s secrets.

In this week’s Troubleshoot Tuesday we would like to give you a tutorial on exactly how to connect your Sabai Technology VPN Router in wireless client mode to securely protect your traffic.

There are a few pieces of information you will need prior to connecting your Sabai Technology Router in Wireless Client mode.

  • - You need to know the name of the network in which you wish to connect.

  • - You need to know whether the network requires a password or not and if it does you must know the password.

  • - You may need to know the Gateway used by the network you are connecting to.  Once connected to the network, the router will display in the Gateway in the status overview page.  The gateway will almost always be x.x.x.1 or x.x.x.254 based on the IP address assigned.  Example: You cellphone is given an IP address of so the gateway will be or (Normally it will be the first option).

Configure Sabai Router

  • 1.  Log into the Sabai Router:
    • IP Address:

    • Username: admin

    • Password: sabaipass123
  • 2.  Navigate to Network>Basic.


  • 3.  Scroll down to the 2.4 GHz Wireless section.


  • 4.  Select “Wireless Client” from the dropdown menu for Wireless Mode.


  • 5.  Now type in the SSID of the network in which you wish to connect in the “SSID” field.


  • 6.  Go the the Security section and select the correct security type for the networkyou wish to connect to.  (WPA/WPA2 Personal is the best option)
    • If the network has a password type in the password in the  field “Shared Key”


  • 7.  Click on Save.

  • 8.  Navigate to Status> Overview.


  • 9.  Look to see if you have a WAN address and your router is also getting time.  If it has both, you are done.  You can plug all of your other devices into the router or if you need wireless, you may enable the 5ghz wireless and you will be able to connect.


  • 10.  If your router does not have a WAN address and Time, navigate back to Network>Basic.

  • 11.  In the LAN section, find your DNS servers.


  • 12.  Change the first DNS server to the gateway address of the network you are connecting to and click Save.


  • 13.  Navigate to Status> Overview.


  • 14.  Look to see if you have a WAN address and your router is also getting time. If it has both, you are done.  You can plug all of your other devices into the router or if you need wireless, you may enable the 5ghz wireless and you will be able to connect.



Captive Portals

Some networks will require you to login, accept the terms or agreement or supply a credit card in order to gain internet access.  If this is the case, you will need to connect your Sabai router as previously described then you must connect a device to the router.  (Hardwire or 5.8GHz wireless if your router supports it).  On your device, go to any webpage.  The network’s captive portal will show up on your device.  Do whatever it ask.  The network will authenticate your ROUTER giving it internet access and everything behind it.


So there you have it, one more way Sabai Technology is helping you stay protected virtually anywhere, using the device of your choice at your convenience.


Sabai OS: Version 5-2

Sabai has released an update to Sabai OS v5. This update is free and available to any customer who is already using Sabai OSv5 and wishes to run the most recent stable version of the firmware.

In this update, Sabai OSv5-2, the Gateways and Static IP pages have been changed. Customers who utilize these sections of the firmware are recommended to update to the latest version to avoid future issues.

Customers who have purchased a VPN Accelerator will be receiving a notice recommending this version, as the changes specifically address the interactions between the Accelerator and the VPN Router.

Any customer wishing to update to the most recent version of Sabai OS should contact customer support by emailing Directions will be sent via email or a remote session appointment may be requested by the customer.

The Sabai Support Team recommends all users create a backup of their settings and have their activation token ready prior to updating their firmware.

Sabai OSv5 Has Arrived!

The long awaited arrival of Sabai OSv5 is finally here and has brought an entire new generation of VPN Routers with it! If users thought OSv4 was user friendly, the new operating system is sure to please. Sabai OSv5 includes a new interface design, improved gateway feature, cleaner code for a better user experience, better VPN Accelerator integration, simple product registration, and expanded VPN compatibility.

New Interface Design

For those of you paying attention, we launched a new logo in 2013. The good news is, we didn’t stop there. The new interface design is brighter and feels cleaner. Navigation and layout didn’t change much, but the overall effect is less “geek” and more modern. If you haven’t seen it yet, here is a sneak peek:

Improved Gateway Feature

Customers who like to manage all of their local and VPN devices from a single router connection will LOVE the new gateway setup. One change that is immediately obvious is the name change – previously called “dual gateway” the menu now simply states, “GATEWAYS.” Why the change? Primarily this decision was driven by the fact that, with a VPN Accelerator, a tri-gateway is not only possible but easy to set up. (More posts on that later!) In addition to the possibility of tri-gateway, customers will notice that the new GATEWAYS is easier to use and more functional. Listen to what some of our beta users have to say when asked about their favorite new feature:

The design is clearly laid out and I love the new Gateway section and that I can assign the [VPN Accelerator] automatically for all devices. I also noticed a slight speed improvement for the download part. – Chris

Default gateway! I love the hassle free management! – Chris M.

The new dual gateway setting is amazing.  I have 12 ip cameras that would take around 30 seconds to all load in on the old OS.  They now load instantly. – Steve

 Look for more information and videos about GATEWAYS, coming soon!

Cleaner Code

Although the firmware continues to be based in Tomato, the Sabai development team has re-written entire sections of the OS from the ground up – including the way OpenVPN and PPTP are handled. This new code is more efficient, increasing load times and providing an overall better customer experience. One of the code changes also fixes the Linksys E4200 dual band issue. We can almost hear the world-wide cheer, as customers who have lamented the single-band limit finally get to use both 2.4 & 5 GHz simultaneous throughput. (Note: E4200 customers will be eligible for a free upgrade. Look for a redemption email coming soon!)

Better VPN Accelerator Integration

Not only is the GATEWAYS feature easier to use and more intuitive, but, it is now extremely stable. Customers who have had issues with the VPN Accelerators stability in the past will be overjoyed with the performance of the new OSv5. (Note: VPN Accelerator customers will be eligible for a free upgrade. Look for a redemption email coming soon!)

Simple Product Registration

Newly shipped products now don’t have to worry about 6-digit codes or other long strings of numbers. Simply enter your email address and click Activate. Customers upgrading will be required to get an activation token from tech support during the update process.

Expanded VPN Compatibility

Sabai VPN Routers have always worked with standard OpenVPN configurations, but, have been limited by external file references and usernames and passwords. No more. Now, Sabai VPN Routers are compatible with:

VPN providers who offer a unified .ovpn file with inline certs, keys and passwords, such as StrongVPN.

VPN providers who offer an array of external files such as .certs and .keys, usually in a zip file.

VPN providers who offer either a single .ovpn file or an array of files and require a username/password.

While we can’t guarantee that Sabai VPN Routers will work with any VPN provider, the expanded compatibility will cover most providers configurations. If you aren’t sure if your VPN company is compatible, feel free to ask us in comments, or send a sample of your configuration file to Our technical support department would be happy to test your file for you.

Current Sabai Technology customers who are interested in upgrading their current routers will receive invitation emails in the coming days. Be sure to check your inbox!

Troubleshoot Tuesday: Connecting to both local and VPN on one network

If you already use VPN on a router, you know the benefits: security, privacy and switching your IP geo-location on all of your networked devices. When it comes to reading local news online or finding the closest pizza delivery place,  you may want your online identity to reflect where you actually live in the world. So, what solutions are available for switching devices back and forth between local and VPN? And, what if you always want your computer on VPN but your tablet on local?

If you were to tunnel your VPN connection through a dd-wrt router, you would need two networks on two separate routers, one regular and one dd-wrt, to have a dual connection solution. Every time you want to switch a device from local to VPN, you will need to physically switch between the two wireless networks. For many users, this is not ideal. On some devices, switching networks is cumbersome. Not to mention the extra expense of purchasing two routers!

For VPN users who purchase a Sabai OS VPN Router, dual connection is easy and all within one router. Using the dual gateway function on a Sabai Router takes just a few seconds to set up, whether you are looking to permanently assign a device to VPN or Local or want to change it back and forth at your convenience.

Dual Gateway Screenshot


It’s this simple: every device on your network will show up in the Dual Gateway window on your Sabai VPN Router interface, as pictured above. Simply click the “route” drop down menu next to the device you want to assign and click “save”. Plus, you get to decide which connection is default – Local or VPN. So if you want the majority of your devices on VPN, set your default to VPN. Then, you will only need to go through and route the few items you want to the Local connection.

Dual gateway by Sabai gives you unbelievable ease and control over your network connections. Every home and business setup is different and Sabai understands that the process can be overwhelming at the beginning. Every Sabai Router includes instructions to set up your dual gateway configuration. Even though dual gateway is unbelievably easy with Sabai, we still offer our one-on-one technical support for three months after you purchase your VPN Router by Sabai, should you need it.

Have a Troubleshoot Tuesday question? Leave us a comment!

10 Reasons to Leave dd-wrt Behind

We don’t mean to brag, but, Sabai Technology has developed a pretty fantastic operating system. Little is left of the open source Tomato operating system (OS) that OSv4 was based on. What Sabai does deliver is a continuously improved VPN Router OS that comes pre-installed on your router featuring functionality and ease not available anywhere else. Below are the top reasons we love the Sabai OS over dd-wrt, but, we will let you be the judge. Feel free to add your favorite features in the comments section!

1. Dual Gateway - For a long time, the ability to use both VPN and local internet on one router at the same time was like the holy grail of VPN Routers. Sabai OSv4 introduced dual gateway as a standard feature on all of Sabai’s routers and the VPN community responded with enthusiasm. There is no longer a need for two separate networks on two separate routers and switching back and forth between local and VPN on any device is insanely simple.

2. No More Bricked Routers - Some people will try to convince you that flashing a router with dd-wrt is “easy”. The truth is, for the average user, it is complicated and often ends with a “bricked” router. (As in, it’s about as useful as a brick because it is broken beyond repair.) While dd-wrt is technically freeware, it isn’t truly free if it comes at the cost of replacing your router! Sabai Routers cost a bit more than an off the shelf router (An Asus RT N16 will cost about $95 off the shelf vs. $159.95 with Sabai OS installed and free tech support), because you get the router plus Sabai OS, already installed,a 90 day guarantee and three months of one-on-one “white glove” tech support!

3. Sabai Freedom - Even just a glance at customer reviews will tell you that customers love Sabai. The one-on-one technical support that comes with the first three months of ownership include email, chat, phone and remote-in service. After the initial tech support period, customers have the option of going to free email and chat tech support or purchasing Sabai Freedom. This 12 month technical support package allows the customer to continue one-on-one technical support, including remote-in service, where a Sabai Technical Support representative takes over the mouse to do the hard work for you. All of our technical support comes directly from our Simpsonville, South Carolina, USA office. Sabai Freedom also includes operating system updates.

4. 5-Minute Setup - Who has time to not only figure out how to flash a router but then set advanced options for optimal use on dd-wrt? Sabai Router takes less than 5 minutes to set up and is pre-configured for optimal use with PPTP and Open VPN. Don’t worry, all of the advanced options are there for those users who want a special configuration.

5. Easy Open VPN - If you have ever tried to get Open VPN to work with dd-wrt, you know how difficult it can be. With the Sabai OS, Open VPN is as easy as uploading one file from your VPN provider. The rest is automated.

6. Easy Port Forwarding - This is another dd-wrt option that definitely falls under “advanced”. While many users will never need to use Port Forwarding, Xbox users will likely be familiar with the necessity for it. Your device will tell you if there is a Port Forward issue, but rest assured that it is an easy fix with a Sabai VPN Router.

7. Reset Isn’t a Disaster - Imagine going through all the steps to get your dd-wrt setup correctly and then lightning strikes and you have to reset the router. With dd-wrt this means starting over at step one. Resetting a Sabai Router might mean re-entering your VPN login, but, that’s it. Minutes instead of hours. Isn’t that better?

8. Satisfaction Guarantee - There is little risk in purchasing a Sabai Router because of the 90 day Satisfaction Guarantee that comes standard with every Sabai VPN Router sold. With dd-wrt, there is no guarantee that the flash attempt will be successful.

9. Overcome Speed Limitations - No matter what operating system you use, there are speed limitations on consumer level Mbps routers such as the Linksys and Asus models. Only Sabai offers the VPN Accelerator, which works in conjunction with the Sabai VPN Router operating system. The VPN Accelerator is a small computer that piggybacks onto your regular router and gives it the speed and power that is about the same as running VPN directly on your computer. The ability to bring that level of VPN speed to an entire home or office network is unique to Sabai Technology.

10. Continuous Improvement - Sabai has programmers working overtime to create the next, best thing in VPN Routers. Sabai Freedom means that you always have access to the latest version of the Sabai operating system meaning that you always have an easy path to the best in speed, quality and usability.

It isn’t uncommon for customers who have used dd-wrt in the past to switch to Sabai because of the unique features of the Sabai operating system and the amazing customer service provided. Can you think of more reasons why Sabai OS is the best? Let us know in comments!

We couldn't have said it better ourselves …

We were recently copied on the following email from a long-time customer to a fellow expat. We thought that their explanation of VPN and Sabai Technology routers was so eloquent, we just had to share it with you!

Good morning Sam* and welcome to Japan*!


Lucy* mentioned I might get an email from someone about the VPN. No problem. I would be happy to share what I know.


First I am guessing you already have DSL to your house and this email is from there? If so, the hard part is already done. If not, then you will first have to get internet service to your house and work from there. Lucy mentioned where you live – you should have pretty fast internet available in that area so speed should not be a problem.


What you will need to have a USA ISP for US only services ( Hulu, Amazon Prime, Netflix etc…) is a VPN (Virtual Private Network) that provides you a USA IP address to receive the services you want to subscribe to from the USA. There are MANY on the web. Some are free and others cost varies. We all know there is no such thing as free so I guess they get their $$ money from advertising etc…


I chose a VPN provider called StrongVPN. They are very reliable and helpful. I have had the service for more than a year now and not a single problem. There are 2 types of VPN, Open and PPTP service. I don’t recall what the differences are but I think I have the PPTP for some reason. Not sure why but it works great! The nice thing about StrongVPN other than the reliability is that they have a chat session available on their website to ask questions etc before and after you order.


Now the meat:


You can order the VPN service from the website directly and have almost immediate account and service to your ISP. This will provide you a single US IP address to one device for your Netflix for example. If you want more devices on a USA IP address as I would highly recommend you will need a VPN router. My system is over a year old and I needed 2 routers for my configuration. 1 local ISP and 1 VPN ISP address [editors note: You no longer need two routers to have a dual gateway configuration!]. There is a company, Sabai Technology that sells routers specifically for StrongVPN service. They are who I bought my system from. Their support is AWESOME! They are friendly and very helpful.  You can call or email them with questions and they will provide you a wealth of information. In fact, I believe they can set up your router over the phone [editors note: This would be a reference to Sabai Freedom!]. The new systems they sell only requires 1 router which can now choose specific devices you want to have a local IP or VPN IP address. I plan to update my software on my router and illuminate the need of the second router. Ruth can also set up your router and system remotely with your approval of course and get you running in no time.


Their website is and I would probably recommend the Linksys E3000 StrongVPN  router that I have 2 of now and have worked great! There is a newer 4200 you might consider. I don’t know what you requirements or desires are. The new routers have the new OS that I am planning to upgrade to so it should be very easy to get you up and running.


If you already have service, you can probably get the VPN service account running tonight.


Good luck,


*Names and locations have been changed to protect identities. This is NOT a paid endorsement nor was it requested or instigated in any way by a Sabai Technology or StrongVPN staff member.

Sabai OS V4: Port Forwarding

Last but not least, we will be discussing the Port Forwarding feature on our Sabai OS V4. Port Forwarding is a feature that allows your devices to work at optimum performance and speed.  Many times devices request that certain ports be forwarded for the optimum experience.  The instructions for that device will make you aware of the port forwarding needs.

You will need the following piece of information to take advantage of the port forwarding feature:

  • Which protocol to forward
  • The ports you would like to forward
  • The IP addresses of each device

If you are not familiar with port forwarding or would like more information, contact us at

Make sure to check out the sale that is still going on at

Sabai OS V4: Dual Gateway Capability

The next feature we have added to the Sabai OS V4 is the dual gateway. Dual gateway allows you to assign which devices will receive local connections and which devices will receive a VPN connection.  Previously, dual gateway was only possible with 2 routers, but we have captured all of the power of dual wan within one router!

Here is how it works.

The Sabai Technology router must first be set up with a VPN connection.  After you have a VPN tunnel, activate the dual gateway function within the router.

Each device requires a static DHCP IP address to take advantage of the dual gateway capability. To automatically assign a static DHCP IP address, you simply connect the device to the router and add it to the list.  The connection will default to local internet. You can choose VPN from the drop down list to change the device connection to VPN. Make sure to disconnect and reconnect each device to establish routing with the new address.

See how simple it is?

Additional information regarding dual gateway: If you have set the Network WAN/Internet Setting to PPPoE, the dual gateway will not function. You must have a separate device to run the PPPoE.

Sabai OS V4: Easier OpenVPN setup

The response to our latest OS V4 release has been overwhelming!  We are super excited for our customers to try out the new features we have added.  The rest of this week, we will be discussing in detail each of the new features and how they can serve you best.

Today, we will be discussing the much improved OpenVPN setup.  In the previous version of Sabai OS, customers would have to navigate to a certain file within the server files provided by StrongVPN.  We have simplified the process even more!

Here is how the simplified setup works:

1. You simply login to your StrongVPN account. Click on VPN Accounts Summary on the left side of the page.

2. Click on the “View Greeting” link for your OpenVPN server.  Download the zip file to your desktop.

3. When uploading the OpenVPN files to your Sabai router, navigate to the zipped file and the router will do the rest!

Here is what it will look like before you load the file:

Here is what it will look like after you load the file:

Troubleshoot Tuesdays: Connecting a Printer

All of the Sabai Technology routers have a USB port that can be used.  Routers featuring the new Sabai OS also have the capability of having a printer hooked up to the USB port.

Here are 10 simple steps to connecting a printer to your Sabai Technology router using a Windows-based machine:

1. Click Start>Devices and Printers>Click Add printer.

2. Wizard Window should appear>press Next.

3. Select Local printer and remove check mark at “Automatically detct…”>Press Next.

4. Select “Create a new port option” and “Standard TCP/IP port” in the drop down list>Press Next.

5. New Wizard Window will appear, press Next.

6. Type your router IP address in the IP address box>Press Next.

7. Select Custom option on the next screen>Press Settings.

8. New “Configure standard..” window will appear, and you will need to check the RAW option, if not already checked and change port number-9100.  Press OK.  Once this window is closed press Next in the Wizard Window.

9. Add Standard TCP/IP Printer port finished, press Finish.

10. Once you have completed port configuration>Add Printer should appear and you will need to continue with regular printer setup procedure.

For more information and visuals on how to connect a printer to your router, check out this link.

Is there anything you want us to address on Troubleshoot Tuesdays? Leave us a comment below!

Ask Tech Support    Like Us On Facebook  Follow us on Twitter  Learn about us on YouTube    Connect with Us on LinkedIn  Back to Main Site 

Subscribe to the Blog

Enter your email address:

Get Tech Alerts & News

Be the first to hear about product updates, sales, new features and more!