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SonicWall disconnecting

Posted on 2013-12-02
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Last Modified: 2014-04-01
I have a SonicWall TZ170 Standard connected to fiber internet in a business office. A new behavior over the last week: The office loses all internet. Not only does the VPN to the home office go down, but they have no internet access at all.

The only thing that fixes it is resetting the SonicWall (they just unplug it and plug it back in).

Can you guys point me in the right direction for things to check when this happens?
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Question by:SECC_IT
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Expert Comment

by:nashim khan
ID: 39690197
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Author Comment

by:SECC_IT
ID: 39690224
Thank you for that. I need to clarify:

This had been working fine for the last couple of years. I have not made any configuration changes at all. This has only been over the last week. The tech guys for the fiber are not seeing any errors on their end.
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Expert Comment

by:Infamus
ID: 39690300
Have you contacted the manufacture?  It might be the hardware issue.

Also please check the resources (CPU and memory) usage when this occurs.
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Author Comment

by:SECC_IT
ID: 39690483
When I logon to mysonicwall, it isn't showing my devices, so if I call them I will end up having to figure all that out. This happened with the Dell changeover.

So, I am simply looking at possible causes for this situation. If there were issues with the power supply, would it be logged?
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Expert Comment

by:Infamus
ID: 39690491
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by:SECC_IT
ID: 39690521
Oh boy, fascinating reading. This will keep me up all night. LOL - thank you very much!
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Expert Comment

by:Infamus
ID: 39690538
LOL


However, I think it is related to hardware issue unless there is any unusual traffic that use up the bandwidth or using high resources.

Resetting firewall will reset the current connections, reset hardware resources and etc...

Therefore, it is hard to tell unless you dig through the log.
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Author Comment

by:SECC_IT
ID: 39690562
If I check all the categories in my log section, then that should give me the most complete reports, right? I am having it email them to me.
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Expert Comment

by:Infamus
ID: 39690611
Yup, you should.
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Author Comment

by:SECC_IT
ID: 39706579
My issue seemed to be the power strip that the SW was plugged in to. I bought an APC UPS and installed it on Friday and all was still fine today (Monday). A few more days will confirm if it worked.

When there was a power fluctuation or outage (even a quick one), the SW was not recovering cleanly and we were losing VPN connectivity.
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Author Comment

by:SECC_IT
ID: 39746662
Okay this is not true - I installed a new APC UPS and I am still getting disconnects. Nothing shows up in the logs.

My last recourse - replace the SW and see if it still happens. I have a site closing down and can use the SW from there after some minor reconfiguring.
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Author Comment

by:SECC_IT
ID: 39803530
I still do not know what the problem was. I replaced the SonicWall yesterday with the same model and am waiting to see if there are problems.

My suspicians are that the CPU or Power Supply are malfunctioning, but I could not find any way to figure this out.

How does one diagnose hardware problems with a SonicWall TZ 170?
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Author Comment

by:SECC_IT
ID: 39949988
Apparently there are no SonicWall experts in this arena!

There is definitely a HW issue; I haven't had problems since I replaced it. Please close this topic.
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Expert Comment

by:Infamus
ID: 39950243
SECC

I've already mentioned twice that this looks like a hardware issue.

I'm glad it is resolved now.
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Accepted Solution

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SECC_IT earned 0 total points
ID: 39959661
Yes, but there was no help in how to deal with the hardware issue (besides "call SonicWall"). I don't have support from them and we are not a large corporation with big bucks to spend. I was hoping for help in how to diagnose the actual issue and maybe even fix it. It's easy enough to figure out that it is a hardware issue, but where, how, why, how to fix? It's not resolved; it's a box that will probably end up in the e-cycle pile.
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LVL 12

Expert Comment

by:Infamus
ID: 39960383
I'm not opposing you closing the ticket.

Sorry, I had some issues and haven't been back for a bit.

But there's nothing really you can do to resolve the hardware failure instead of replacing it.

The reason I asked you to call their support was to get it RMA'ed.  (assuming it is under support or warranty)

I'm glad that it is resolved.
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Author Closing Comment

by:SECC_IT
ID: 39968776
Nobody supplied a solution. I gave it to myself. Bah.
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