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KR1 Firmware Hack - 3 days and NO DISCONNECTS!!!

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Indio192
EVDO Fledgling


Joined: 03 Jun 2006
Posts: 24

PostPosted: Mon Jun 16, 2008 9:51 pm    Post subject: KR1 Firmware Hack - 3 days and NO DISCONNECTS!!! Reply with quote

I patched a routine in the rk1010 firmware to correct a programming error. I have now been connected for 3 days without a single disconnect. I'm located in an RV park out in the boonies near Yosemite. My ATT cell phone doesn't even work out here.

Anyone interested in trying this firmware? You can get it at:

http://cid-baa8e5636e0f51ca.skydrive.live.com/self.aspx/KR1%20Firmware/rk1010jpmc01.bix


Disclaimer: This firmware is not guaranteed in any way. It works fine in my KR-1 with a USB720 on Verizon. Your experience may be different.

This firmware also includes telnet access based on the method used by TZ1 and it has the crontabs file cleared of entries as by TZ1. It does not include GPS.

Jim
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freshaire
EVDO Fledgling


Joined: 20 Sep 2006
Posts: 19

PostPosted: Tue Jun 17, 2008 8:00 am    Post subject: Reply with quote

Is this running with WiFi enabled or disabled ?
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Indio192
EVDO Fledgling


Joined: 03 Jun 2006
Posts: 24

PostPosted: Tue Jun 17, 2008 8:30 am    Post subject: Reply with quote

I run with wifi disabled. I have been doing this from day 1 (nearly 2 years ago) because the card I was using initially (PC5220) did not work with wifi enabled. I hooked up a Belkin wireless router configured as an access point and have been using that ever since. Apparently the USB720 I currently use does not have the interference problems that the PC5220 had, but why mess with success.

The patch I made should not care if wifi is enabled or not. It only affects the way pppd responds to evdo disconnects. Through a programming error, the pppd option "persist" was concatenated onto a comment line. This meant that every time the evdo connection was lost or corrupted, pppd would terminate. The KR-1 then attempts to restart pppd. Sometimes the restart works fine, but many (most?) times it does not. If it cannot restart pppd after 5 tries, it reboots.

Jim
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freshaire
EVDO Fledgling


Joined: 20 Sep 2006
Posts: 19

PostPosted: Tue Jun 17, 2008 12:07 pm    Post subject: Reply with quote

Thanx, just curious. I must have been one of the lucky ones, running v1006 with WiFi disabled and have had few, if any, lockups. WiFi enabled causes grief, but I use it where WiFi is not allowed, so no big deal.
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dan1101
EVDO User


Joined: 17 May 2007
Posts: 67

PostPosted: Sun Jul 13, 2008 8:32 am    Post subject: Reply with quote

Indio, I'm running your firmware on a KR1 with USB720 and WiFi, works great so far.

I do have one question though, now that the router is in the room with me I see the USB720 access light blinks all the time. Is that normal for KR1/EVDO? Right now my PC is doing no net access (cut it off at the firewall to check), but I do have two Tivos on the network. AFAIK the Tivos should only access the Internet to download program info every 10 days or so.

This is important because I'm living under a Nazi Internet regime (Verizon 5GB per month limit with .25/MB overage charges!)
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Indio192
EVDO Fledgling


Joined: 03 Jun 2006
Posts: 24

PostPosted: Tue Jul 15, 2008 3:44 pm    Post subject: Reply with quote

As far as I know the USB720 blinking has nothing to do with data transfers. I wake up in the middle of the night and see it blinking. Someone wrote a while back that he had to put a piece of black tape over the light.

Jim
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dan1101
EVDO User


Joined: 17 May 2007
Posts: 67

PostPosted: Tue Jul 15, 2008 6:08 pm    Post subject: Reply with quote

Indio192 wrote:
As far as I know the USB720 blinking has nothing to do with data transfers. I wake up in the middle of the night and see it blinking. Someone wrote a while back that he had to put a piece of black tape over the light.
Jim


Yeah I had the same issue with my S720. Used a Sharpie marker to darken it.

I get a lot of disconnects I'm when gaming with my USB720 whether I'm plugged into the router or have the 720 plugged directly into my PC. The ping will be good like 100 to 150 for 5 or 10 minutes, then it just goes away and disconnects me. I have 2 bars of service showing, I'm hoping an external antenna will help. Got a cable on order.
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Luke Skywalker
EVDO Newbie


Joined: 19 Jul 2008
Posts: 2
Location: OKLAHOMA

PostPosted: Sat Jul 19, 2008 9:12 pm    Post subject: QUESTION FOR INDIO ABOUT KR1-U720 Reply with quote

I have used the kr1-u720 combination on Sprint here in the boonies for about 1 year. My firmware is RK1011. I have an external antenna connected to the u720. The wireless is disabled. I trade the market and my internet connectivity just stops for no reason on average for once a day. I have been rebooting the kr1, which brings it back in 1min. The connectivity of my 3 computers remains intact, and the router does not reboot itself immediately. I leave all power on at all times through a UPS with deep cycle marine batteries attached for extended run times in case of power glitches.
On occasion when I have been away during the day, I have seen about 1 hour of stock market graphs missing, so apparently the kr1 eventually does reboot itself.
Is my problem one that would be fixed by your firmware hack, or do I have some other problem?
David
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Indio192
EVDO Fledgling


Joined: 03 Jun 2006
Posts: 24

PostPosted: Sun Jul 20, 2008 8:57 am    Post subject: Reply with quote

If your goal is to have internet connectivity with no disconnects, I doubt this firmware hack will help you. It may keep you connected for a few days at a time, but I can't guarantee permanent connectivity. You can give it a try and, if it doesn't work, you can go back to the rk1011.

There are reasons outside the KR1 that affect connectivity. Weak signal being one of them. There is also the issue of how much capacity the link has. I travel all the time in a motorhome and I find a lot of variety in links around the country. Even with this firmware hack, there are places where I get frequent disconnects (several times a day). In some places the system works perfectly in the early mornings and deteriorates as the day progresses. In some, it stays connected for several days.

As someone has posted before, the evdo system is nothing more than a cell phone system. So, you shouldn't expect it to stay connected continuously. I don't think any of the evdo broadband vendors advertise their system to be anything more than a temporary tool for the business traveler.

With this said, there are issues with the KR1 that negatively affect connectivity. One is related to the KR1's wireless system. You seem to have taken care of that by turning off the wireless. Another is the error in the evdo options file. This one is corrected by this hack. There are still other issues that I am working on (I'm in the process of reverse engineering the firmware module that controls the evdo link).

My goal is to develop a firmware that gives the KR1 the same stability as you get when your evdo card is attached to your computer. I have coded most of the control module into C and will begin testing in a week or so.

Jim
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Luke Skywalker
EVDO Newbie


Joined: 19 Jul 2008
Posts: 2
Location: OKLAHOMA

PostPosted: Mon Jul 21, 2008 10:17 am    Post subject: Post topic Reply with quote

Your firmware hack did not help, as you predicted.
My kr1 does not reboot immediately as yours appears to do.
During the internet outage, my three computers have connectivity through the kr1. The signal on the U720 is zero according to the kr1 control panel. Disconnection and reconnection of the U720 does not succeed, only rebooting the kr1. Meanwhile, my Sprint cellphones work fine.

I would greatly appreciate any advice that you can give me on this problem. Perhaps some of the settings in the kr1?

Further info about my situation: worst signal with the U720 directly connected directly to one of my computers -97dBm, best signal -87dBm, most often -90dBm. Admittedly, these measurements were taken at night when the problem doesn't occur often.

Thanks, David
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Indio192
EVDO Fledgling


Joined: 03 Jun 2006
Posts: 24

PostPosted: Mon Jul 21, 2008 1:05 pm    Post subject: Reply with quote

A couple of suggestions.

One, look at the KR1 log file and see what it is doing during one of the outages. What normally happens when the evdo signal is lost the KR1 tries several times to reconnect (I think 10 times). After that it will reboot itself. It takes several minutes to go through the 10 reconnect attempts. The log file will show the reconnect attempts.

Two, connect your USB720 to one of your computers and see it it exhibits the same behavior. People who have the many times a day reboot problem with the KR1, do not have the same problem when directly connected to the computer. In your case of once a day disconnects, the direct connection may show the same behavior.

Is there any object that might move between your antenna and the cell tower? Trucks, etc.

Jim
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imad1208
EVDO Newbie


Joined: 11 Aug 2008
Posts: 2

PostPosted: Mon Aug 11, 2008 1:53 pm    Post subject: KR1 with S720 Reply with quote

Hello,

New to the forum so I apologize in advance for stupid questions. I have a Novatel S720 and I was wondering if the KR1 would be the best fit for it.


Thanks
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Mackieman
EVDO Junkie


Joined: 31 Oct 2005
Posts: 491

PostPosted: Mon Aug 11, 2008 2:16 pm    Post subject: Re: KR1 with S720 Reply with quote

imad1208 wrote:
Hello,

New to the forum so I apologize in advance for stupid questions. I have a Novatel S720 and I was wondering if the KR1 would be the best fit for it.


Thanks


KR1 has reached its end of life. KR2 is now available and it works well with the Novatel S720 PCMCIA card. KR1 will work with the S720 but you'll have a better experience with the stability and advanced features of KR2.
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imad1208
EVDO Newbie


Joined: 11 Aug 2008
Posts: 2

PostPosted: Mon Aug 11, 2008 5:49 pm    Post subject: Re: KR1 with S720 Reply with quote

Mackieman wrote:
imad1208 wrote:
Hello,

New to the forum so I apologize in advance for stupid questions. I have a Novatel S720 and I was wondering if the KR1 would be the best fit for it.


Thanks


KR1 has reached its end of life. KR2 is now available and it works well with the Novatel S720 PCMCIA card. KR1 will work with the S720 but you'll have a better experience with the stability and advanced features of KR2.




Do you know if you could have more then one broadband card on one sprint account? I was thinking of purchasing the KR2, then leaving the S720 plugged into it and also get anther broadband card under the same account plugged into the laptop when I'm on the road.
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Mackieman
EVDO Junkie


Joined: 31 Oct 2005
Posts: 491

PostPosted: Mon Aug 11, 2008 5:56 pm    Post subject: Re: KR1 with S720 Reply with quote

imad1208 wrote:
Do you know if you could have more then one broadband card on one sprint account? I was thinking of purchasing the KR2, then leaving the S720 plugged into it and also get anther broadband card under the same account plugged into the laptop when I'm on the road.


I believe they do allow more than one device on an account. But you have to sign an agreement on each device, just like you do with multiple phones on a single account. You can check with 3GStore or a local account rep to confirm.
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