Troubleshoot Tuesdays: OpenVPN connection cease?

February 7, 2012

Has your OpenVPN connection stopped working? Did you get an email from StrongVPN saying they have made changes to your server?

The solution is easy!  Simply:

1. Log into your StrongVPN account and re-download your OpenVPN script

2. Log into your router panel using the instructions you received with the router and reload the OpenVPN script onto your router.

3. If this does not resolve the issue, try switching to a different server in the same city and repeat step 2.

 

If you are unable to regain VPN connection, please contact us at support@sabaitechnology.com.

 

Have something you would like us to address on Troubleshoot Tuesdays?  Comment below!

 

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Troubleshoot Tuesdays:

January 10, 2012

One of our valued customers, Victor, wrote in to let us know of a problem he was able to correct by changing his router settings.

Victor wrote…

“I had some hard time trying to figure out why the VPN connection dropped so often. It turned out to be the MTU.  By default,
it’s set to Auto, I just changed it to 1400 and now the VPN connection has been up for days. Maybe pre-setting a specified MTU value can improve the performance for some user setups.”

DD-wrt routers are set to Auto for MTU.  Routers featuring the Sabai OS are set to 1500.  For most internet connections, the router will not work unless the MTU is set to 15oo, the max MTU.  Each internet connection is different, so if you are experiencing VPN drop off, try adjusting your MTU down.

If you continue to experience a drop off in your VPN connection after adjusting MTU, contact us at support@sabaitechnology.com.

If you have a topic you would like us to address in our next Troubleshoot Tuesdays post, leave a comment below!

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Troubleshoot Tuesday: It’s as easy as 1-2-3

December 27, 2011

For Troubleshoot Tuesdays this week, we will be discussing what happens when you press the dreaded RED reset button on a dd-wrt router.

Many of you know that when the red reset button has been pressed, the router connection ceases. On a dd-wrt router, pressing the reset button erases the operating system.  Often when the router will not connect to VPN, customers will press the reset button.  We always recommend pressing the reset button as a last resort.  Sometimes it is necessary but many times other steps can be taken to re-establish a VPN connection.

If you do happen to press the reset button, here are the steps you will take to reload the dd-wrt configuration onto your router.  It’s as easy as 1-2-3:

1. Disconnect and reconnect your computer to the Sabai dd-wrt router. Type in the address bar 192.168.1.1

2. Enter log in information. Click on Administration/Backup tab and browse to the backup configuration file on the CD (included with your router purchase)

3. Click the Restore button at the bottom of the page. After your router reboots, you will need to re-enter your StrongVPN account information into the router.

You should now have a VPN connection!

If you have trouble reloading the dd-wrt configuration or cannot find your backup disc, please contact us at support@sabaitechnology.com.

Have anything you would like us to address in our Troubleshoot Tuesdays posts?  Comment below!

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Troubleshoot Tuesdays: 3 steps to faster speed on dd-wrt router

November 29, 2011

For Troubleshoot Tuesday this week, we will be addressing speed issues on a dd-wrt router with PPTP encryption.  Many of our customers have upgraded to the Sabai operating system, but we realize that many are still using dd-wrt.

Are you having decreased speed on PPTP with your dd-wrt router?  Try these 3 simple steps to help increase your speed.

1. Login to your router 192.168.199.1>Enter Username and Password

2. Click on Setup tab>Disable Packet Reordering>Apply Settings

3. Click on Administration tab>Reboot router

Now test to see if your speed has improved.  If your speed has not improved or worsened after changes were made, reset the router to previous settings and contact us at support@sabaitechnology.com.

Is there something you would like us to address on Troubleshoot Tuesdays, comment below!

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World’s Fastest dd-wrt Router

October 4, 2010

I’ve been working, on and off, on creating the world’s fastest dd-wrt router.  Last week, I finally hit paydirt with the x86 dd-wrt running flawlessly on a dual core Atom 1.8 ghz (with hyperthreading) computer with 1 GB RAM and 512 MB SSD HD (updated specs 7/22/11).  It’s got no wireless at this point.  1 WAN port and 3 LAN ports.  It was crazy how quick everything moves and we got VPN speeds of 17 MB – 25 MB from SC to UK on a 25 MB pipe.  I’d love to know what it can do with a faster internet pipe.  The problem is finding anything much faster in South Carolina USA.  I’ve got a couple of questions though.

Is it worth adding the full dd-wrt to include support for the USB, JFFS, etc?  Full dd-wrt also gives wireless support (if we wanted to add wireless) and ability for more that 4096 simultaneous connections.

I’m going to use these for VPN clients.  What other uses are you thinking of for a VERY fast dd-wrt router?

6 Comments | dd-wrt, VPN Router | Tagged: , , , , | Permalink
Posted by sabaitechnology

DD-WRT Keep Alive

July 13, 2010

The dd-wrt Keep Alive screen

In dd-wrt, under the Administration Tab, Keep Alive subtab, there’s a great feature that I recommend you take a look at.  I develop routers that work with the StrongVPN service.  It’s an amazing service, run by great people.  The dd-wrt router configuration for PPTP is wonderful but if the connection gets dropped, it isn’t able to reconnect.  That’s a limitation of the dd-wrt PPTP client, not StrongVPN.  In order to address the problem, I recommend turning on the WDS/Connection Watchdog under Keep Alive.  You can see from the image above how to set it up.  I set the interval to 360 and the address to a known address that will always be available if the internet is up.  8.8.8.8 is one of the public DNS servers that Google provides.

Basically, with the configuration above, the router tries pinging the Google DNS server at 8.8.8.8.  If it gets a response, no action is taken.  If there is no reply to the ping, the router reboots.  In our case, the PPTP connection is established as a part of a startup routine, so the reboot forces that reconnect.

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Getting VPN traffic through your dd-wrt router

January 27, 2010

I’ve been developing a client router for the StrongVPN service.  One of the walls I hit was that my main router was not always allowing the VPN traffic through.  I’m running a WRT320N with dd-wrt Mega build (EKO big) as my main router.  In researching a solution, I came across this gem of a statement on the dd-wrt forum “If you have followed the above steps and still cannot connect to the VPN, try forwarding the PPTP Port (1723) with TCP protocol to the LAN IP Address of your router (i.e. 192.168.1.1). Although it seems like this is a weird approach since you are using your router to forward to itself, it often times allows the VPN connection to succeed.” The full link is here.

As soon as I did this, the floodgates opened.  No problems since connecting my VPN.

By the way, the StrongVPN client router is developed, tested, and working strong!  Here’s the product page http://sabaitechnology.com/StrongVPN-Client-Router-N-P841634.aspx

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Installing dd-wrt on a WRT54GS2

January 1, 2010

I did this video today of my install of dd-wrt on a stock Linksys WRT54GS2.  This is a great router that we use for wireless g / b wireless ethernet bridge, wireless repeater, repeater bridge, and basic access point.

Here’s the video, I’ll include some instructions at the bottom of the post, once I have a few minutes to work through the steps on paper.  You can buy these routers with dd-wrt already installed at our website, www.sabaitechnology.com

6 Comments | dd-wrt, WRT54GS2 | Tagged: , , , | Permalink
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Video – dd-wrt Wireless Client Bridge

December 27, 2009

The boys and I did a video today about using dd-wrt 2 to create a client bridge. A client bridge connects the device to the wireless network. Then wired devices can jack into the back and access the main network over the “bridge”.   www.sabaitechnology.com can provide these in Wireless N or b / g.  Here’s the video:

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Posted by sabaitechnology

Welcome to our website!

December 23, 2009

We are SO excited about launching our store for dd-wrt enabled wireless gear. We’ve started with the WRT54GS2 and the WRT54G-TM. We’re adding the WRT320N later this week and we’re excited about adding a wireless N product to our mix.

Check us out at www.sabaitechnology.com

Sabai Technology is about empowering the everyday user of Technology to do really geeky things, really easily. Without needing to know how to flash a router, picking the right models and version numbers, and going through the time and expense, we’ve got your router ready with the ability to do wireless client bridge, wireless repeater, repeater bridge, access point, hotspot, and many others. The list of features included in various models are:

VPN,quality of service,802.1x Extensible Authentication Protocol (EAP),Access Restrictions,Ad Hoc, Afterburner, Client Isolation Mode, Client Mode, DHCP Forwarder, udhcp, DHCP Server, Dnsmasq, DNS Forwarder, DMZ, Dynamic DNS, DynDNS, easyDNS, FreeDNS, No-IP, TZO, ZoneEdit, Hotspot Portal, Sputnik Agent, Chillispot, IPv6, JFFS2, NTP, ntop, Remote Statistic, OpenVPN, Port Triggering, Port Forwarding, PPTP, VPN Server, VPN Client, QoS, Bandwidth Management, QoS, l7 filter, RFlow, Routing, BIRD, Samba FS Automount, Syslog, Rx Antenna, Tx Antenna, Processor Utilization, Site Survey, SNMP, SSH server, SSH client, dropbear, Firewall, Static DHCP, Variable power from 0 mW to 251 mW, UPnP, VLAN, WOL, WDS, Connection Watchdog, WDS, Repeater Mode, MAC Address Cloning, Wireless MAC Filter, WMM, Wi-Fi MultiMedia, WPA, WPA2, TKIP, AES, Xbox Kaid, Kai Engine

1 Comment | dd-wrt, Wireless Bridge, Wireless Repeater, WRT320N, WRT54GS2 | Tagged: , , , , , , | Permalink
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