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Author Topic: DLink 2590 radio reset  (Read 43172 times)

Zac

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Re: DLink 2590 radio reset
« Reply #15 on: December 05, 2012, 02:23:37 PM »

I would check the manual to see if there is operating temps listed. Some manuals have it listed.

Most devices I have seen rate their operating limits in *junction* temperature or *ambient* temperature (occasionally chips are rated in case temperature, but whole devices?).  I have no way to check junction temperature on this thing (it would have to offer it since such would otherwise be guesswork and still need to disassemble the device)...

Ambient, in the room where it is located, varies between about 60 and 75 Fahrenheit depending upon time of day (whether the heat is in 'home' or 'away' mode) during this time of year, and between 75 and 90 Fahrenheit during the summer months (whether the air conditioning is in 'home' or 'away' mode).  It wobbles pretty erratically during spring/autumn, but the outside limits are usually held -- 60 to 90 degrees Fahrenheit.  No problems were apparent during the summer, when I'm sure the case temperature was higher.  I try (with limited success) to keep humidity between 30% and 50%.  All of this is within the device's rated environment -- 32 to 104 Fahrenheit (0 to 40 Celsius), 10% to 90% humidity (noncondensing).  I have never seen condensate forming on it (it's pretty much always warmer than room temperature when plugged, and it spends all its time plugged) or for that matter anywhere else in the room.

I might try leaving it off for a while and see how it does after you turn it on.

Unhappily, it heats up to 'warm' pretty quickly (maybe a half hour to an hour).  Not enough time to guarantee a reset yet, though in a couple months it may be (if the deterioration continues)...

The freezer is probably out; most of the radios I have seen for wireless don't like to operate below freezing, apparently including the one used in this unit.  Putting an ice pack on it might not force the device temperature below freezing, but it practically guarantees condensate.  Maybe I could stick it in the fridge?  But then, I somehow suspect reception would be poor.  :P

Now I think about it, maybe I should *heat* the thing.  It worked during the summer and is failing at the leading edge of winter -- plus the original unit didn't work out of the box at the leading edge of winter.   ::)

I see this newer version of FW listed:
v1.25   10/8/2012 12:00:00 AM

Already tried 1.25, 1.20, 1.15, 1.13.  Back to 1.25 so I could use my 'working' configuration, but I've since purged the config in prep for return/recycle.
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FurryNutz

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Re: DLink 2590 radio reset
« Reply #16 on: December 05, 2012, 02:54:03 PM »

I would ask DLink if they would send you a different model instead of the same. Might be worth asking. Understand about going with another brand. You got to get something that works for you. Don't feel bad.
I might recommend maybe a different model DAP, say 1533? Not sure what your specific needs are. I would talk to DLink about it, and see what they might do for ya.

Maybe see if they have other options for you. If not, "Find and fofill your destiny!"  ;D

« Last Edit: December 06, 2012, 02:16:51 PM by FurryNutz »
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FurryNutz

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Re: DLink 2590 radio reset
« Reply #17 on: December 13, 2012, 07:07:17 AM »

Zac, Need some follow-up information.  ???
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FurryNutz

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Re: DLink 2590 radio reset
« Reply #18 on: January 07, 2013, 10:05:00 AM »

Happy New Year Zac.

Was curious if there is any news or status on this? Hope there is good news.  ::)
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Zac

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Re: DLink 2590 radio reset
« Reply #19 on: January 07, 2013, 03:41:31 PM »

Happy New Year Zac.
Was curious if there is any news or status on this? Hope there is good news.  ::)

A DLink rep did ask me to call tech support, but at the time I was travelling, and I had an idea, so not done yet.  Tech support, if history tells, will simply want me to do everything I've already tried plus at least one or two impossible things to see if I'm listening (change the band, turn off security, change the clients, upgrade/downgrade device firmware and client drivers, move the thing to the zero room of a TARDIS to avoid local interference, hop about the room on my left leg while holding a client PC so its antennae are exactly 1.5m from the unit's antennae to be sure I'm not out of range, &c) before they will listen to anything I have to say (it's not SCSI, so ritual sacrifices are hopefully less likely).  I want to try to have some confidence in what I have found when I do call them.   ::)

While I was travelling, I took some 'light reading' with me: In particular my notes about my network and the log files for the past few months.  It took some effort to correlate something to the issue, but I have found a suspect change that seems to have caused the problem to surface.  I think it is speculative, but the correlation looks high.

Oddly, what I suspect is *not* radio related.  Maybe that is good news...?  It is something that should be utterly unrelated, IMNSHO, but after nearly five days of testing (I will not believe it until after at least a week), no drops.   ???

About the time the original issues started, I was adding some new devices to my network and reorganised the IP addresses.  Seems innocuous enough, and I had done that to a limited degree before, except that I also upgraded my DNS and DHCP server daemons (on my main fileserver, a Linux box) and switched a number of devices to running statically allocated DHCP (MAC to IP mapping set at the DHCP server) instead of locally assigned IP addresses.  The idea, of course, is to give me central control of IP addresses not only of PCs but everything.  Seemed that if I had to do something like this again it would be easier.  Ah, if only...   >:(

At that point, I switched almost all of the network devices to DHCP client mode as well.  Most of the devices seem to work reasonably well that way.  However, a few do not (including the DAP-2590).

Shortly after this change, it seems, the DAP-2590 started issuing the 'Initiate wireless success' messages while dropping all its clients at once.  I can't say exactly how long, since I was not having it copy its log entries to another device at this point.  However, a couple weeks after the change, I had the DAP-2590 sending its logs to a Linux box.  About a couple weeks after that, I decided to change the DHCP renewal interval (I didn't like the amount of clutter in the dynamic space that stuck around after certain changes, so I set it to age entries more quickly).  At this point, the DAP-2590 started issuing 'Initiate wireless success' messages and dropping its clients at intervals that were within a minute or so of the new DHCP renew interval.

Not sure why I did not suspect it before...  Probably my bias is toward the radio problem by experience (my first DAP-2590 unit) and that combined with the same log message (which looks like a radio-related message to me) attracted that conclusion.    :-[

The first couple days after I got back I had the thing running as it was (DHCP client but the server was told to always give it a specific address).  It would issue the 'Initiate wireless success' messages and drop clients at about the time it renewed its lease, every 12 hours on my network.  Since clocks are hard to synchronise, and distributed logs involve a lag that is particularly noticeable against local frame captures, I can not say the specific order of the DHCP lease renewal versus the 'Initiate wireless success' message versus the client drops, but they always occurred together, and within a few seconds usually of the expected DHCP renewal interval.

Right now, I have the DAP-2590 running firmware '1.25   15:41:33 08/31/2012', with a saved configuration from before I took it down, except that I have set it to use a static IP address instead of running as a DHCP client.  It has been up for '4 Days, 19:26:16' and the only 'Initiate wireless success' message came a few moments after it booted, with no client drops during this run (but only one client at this point).   :-\

Once it gets to a week, or if it starts dropping again before it gets there, I shall call DLink's tech support and give them a chance to walk me through their process.  Maybe it will go better this time?  Maybe they can figure this out and resolve this problem in a new firmware version.  If it does appear to be related to DHCP client mode, I wonder whether it applies to other devices...

I any case, I would hope they can at least make the log entries more useful in the future (perhaps some indication of *why* it does something in addition to the fact of it doing something).   :'(
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FurryNutz

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Re: DLink 2590 radio reset
« Reply #20 on: January 08, 2013, 07:57:45 AM »

Glad you have found a possible cause maybe. Helps to step back sometimes, go away and then sometimes ideas start popping up.

Keep us posted on how it goes. Hopefully this will all work out for you.  ;)
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