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Sunday, September 19, 2010

Android (Droid X) Kills SonicWall TZ210

Tonight I discovered that not only can I not connect to the Internet with my sweet Droid X over wifi through my SonicWall TZ210, I can bring said SonicWall to its knees with the Droid.
See How To Remove City ID (and other crapware like Blockbuster, Skype and VZ Navigator) From Droid X (and other Android phones) for detailed instructions.
I've used SonicWall firewalls for about a decade now, and I've been a pretty big proponent too.  In that time I've configured dozens of them, from 5 user SOHO generation one firewalls to NSA's and everything in between.  All-in-all I've been pretty happy.  But - here it comes - I've had some issues as of late.  A while ago I wrote about a memory leak on an NSA 2400; I haven't written about this yet, but I've also had a problem on the same NSA with throughput and traffic from certain networks; now this.  Starting to lose faith SonicWall.

A couple months ago I picked up a Droid X to replace my trusty BlackBerry.  I was pretty pumped about being able to use wifi as Verizon's signal is a little weak at my house.  But it doesn't work here through this TZ 210.  Oh, my Droid works fine on wifi at the office through another SonicWall, same OS and similarly configured; and my BlackBerry Bold worked just fine through this firewall too.  So, what's the deal?

A couple weeks ago after searching the web I discovered others who were having the same issue with 'droid's over SonicWall's, but no one had a solution.

Well, tonight I finally sat down to figure this out.  I turned on wifi on my Droid X & opened my browser.  After a couple seconds it was obvious that there was no joy.  So I checked my Droid's IP address and tried to ping it from my Windows 7 laptop connected to the same WLAN.  No go.  Next I tried to ping the SonicWall's WLAN IP address from the Droid.  Again, no go.  Oh, don't worry, I know I can ping the SonicWall's WLAN as I have a continuous ping running on my laptop.

After trying to ping that interface a couple more times from the Droid my laptop lost connection to the SonicWall.  This actually happened a couple days ago when I turned on the Droid's wifi interface for a few minutes and tried to do something else with it.  Certainly just running a couple basic network diagnostics from the Droid couldn't affect the SonicWall, could it?

Now it was on.  I want to know what the heck is going on so I started numerous continuous pings on my laptop (namely to the SW WLAN, the Droid's address, and Google) and from an external source to the SonicWall, then moved to the Droid.  I enabled its wifi, verified the IP address, then started to ping the SW WLAN.  After the fourth try the pings running on the laptop started to timeout.  Soon as I turned off wifi on the Droid they came back to life.  Of course there isn't anything in the SonicWall's default log.  Oh, I did receive three replies from the Droid's address just after enabling wifi.

What in the world could be causing this?  Why can't my Droid X connect to the Internet, or ping the WLAN interface on the SonicWall?  Why/how could just pinging the SonicWall from the Droid take down my WLAN?

At this point I just don't know and due to the lateness of the hour I'll have to continue the quest later. . .   Stay tuned.

6 comments:

  1. Hey man I'm having the same problem with my Android phone and my Sonicwall firewall. Have you figured it out yet? If so please post what you've found. It's killing me that I can't use my Sonicwall wifi with my Android.

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  2. I'm also having the same problems. I've tried with a SonicWALL PRO 2040 with an SonicPoint G and with a SonicWALL TZ170W. Both setup has the same problem. When connecting my HTC Desire (android 2.2) to my WLAN it kills my SonicWALLs. With Android 2.1 it worked perfectly. Have you found any solution to this?

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  3. No, I haven't found a solution to this yet. I opened a ticket with SonicWall and began to troubleshoot then got sidetracked and haven't gotten back to it yet. If/when I figure this out I will definitely post it here.

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  4. Exact same problem! Also affects my Nook color running Froyo. Please relay the solution if you find one; [decaderez at gmail].

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  5. Any info we are running into the same problem with two different froyo based android devices

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  6. I heard Androids have trouble connecting to Sonicwalls, supposedly they only work on certain channels and freqs Channels 1-6 with 2.4ghz set. I am currently testing this. Will report back soon.

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