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[babidoux]

Hello Everyone,

It has been a month now that i am trying to make it work but no result
I HAVE TO ASK YOU:
Bought a Dlink DIR-615 HW Ver: D3 FW Ver:4.00

2 laptop connected with wifi only, Using Windows Vista

Problem: -No full speed max 144 for me or 150 for the other laptop not the biggest problem
            -BUT always dropping connection randomly (when restarting session everthing goes fine until...it drops again)

We have dyn DHCP, IP auto

We tried to make it as an Access Point but only one can get connected (IP adress issue) even if my cable internet provider claims that we have 2 IP adress!

I don't get it. What is wrong? it should be an esay setting in 5 minutes...for me it is still 1 month and not yet fixed!

Please help me i have until the end of the week to fix it otherwise my friend will end its life!

Babidoux

[Skello]

The 4.00 version of the factory firmware for DIR-615 Rev. D is notorious for random disconnects.

You can try a firmware upgrade to 4.13, which you can get from ftp://ftp.dlink.cz/dir/dir-615/driver_software/DIR-615_fw_revD_4-13B01_all_en_20101201.zip (you need the .bin inside)

Or, you can try the custom DD-WRT firmware, which is reportedly more stable. See here: http://forums.dlink.com/index.php?topic=13599.105

[FurryNutz]

I recommend trying G mode only on the WiFi before doing any FW updates. Turn off options that you don't need. Disable Short GI. Also try setting your Channels to something different. There could be other WiFi inth area. Are there any household corless phones? Sometimes they run at 2.4Ghz and can cause the WiFi to disconnect and restart.

[babidoux]

Hello there,

There is no cordless phone around (mine) there is a lot of wifi networks in the building (Switzerland)


Question: If I set WIFI G will I get a better speed ? or just a beeter connectivity?

My Firmware is already 4.13 What should I do...

Thanks again for your quick answers.

Bis später

Babidoux

[Skello]

I recommend trying G mode only on the WiFi before doing any FW updates.

Sorry, but I have to ask. How is this a solution? I assume people buy a wireless N router because they want the better signal and higher speed that comes with it. How is limiting a N router to G speeds, a fix?

Second, what's wrong with FW updates? Firmware updates hardly ever make things worse and if they do, there's also the option to revert back to the previous version, especially on DIR-615. Not to mention that these updates could contain security fixes, like for example the 4.13 I recommended.

Telling people to hold off on updates for operating system, computer software, router firmware and so forth is the primary reason why there are so many remote attack vectors available for so many systems/devices. Just to exemplify, there already was a worm that compromised vulnerable home routers and built a botnet from them.

That being said, I do agree that switching to different channels might improve things, but usually wireless overcrowding does not lead to disconnects, rather poor performance (signal, transfer rate).

The more likely culprit here is self-denial-of-service. Resource exhaustion because of poor resource management in the software. I've seen lots of people with similar problems report them all gone after switching to DD-WRT, which by default uses settings similar to D-Link's firmware. It just handles things better.

I'm sorry to say this, but I got tired of trying to find excuses for D-Link's firmware a long time ago. Way too many similar reports to be just a coincidence. It's simply crap.

[FurryNutz]

Having alot of other Wifi in the area could be a culprit as these other WiFi networks broadcasting radio near the same channels could cause interference.

Testing and trouble shooting at a single mode G first and trying different channels may help resolve some of the issues. Then try N mode only, see if there is any changes.

Doing single modes does provide a more stable or (beefier) broadcast as the router does not have to broadcast other singles. And if you are not using those other Modes, why have the router broadcast them. They can be used at anytime.

[FurryNutz]

Sorry, but I have to ask. How is this a solution? I assume people buy a wireless N router because they want the better signal and higher speed that comes with it. How is limiting a N router to G speeds, a fix? Is part of troubleshooting the problem and trying to help people narrow down and find the issues with there routers.

Second, what's wrong with FW updates? Firmware updates hardly ever make things worse and if they do, there's also the option to revert back to the previous version, especially on DIR-615. Not to mention that these updates could contain security fixes, like for example the 4.13 I recommended. Why not up date? Why not trouble shoot the problems first then update as last resort? Not all updates are magical fixes for everything. Not all updates contain security fixes or resolve issues. Updating FW could be compounding the problem and not finding the real reason why the device isn't working. Some FW is better then others however if the shipping in box FW thats loaded on the device was testing at the MFR, then it should work just fine. Then if something happens then people need to try to trouble shoot the problem and if that fails Update. Very simple.

Telling people to hold off on updates for operating system, computer software, router firmware and so forth is the primary reason why there are so many remote attack vectors available for so many systems/devices. Just to exemplify, there already was a worm that compromised vulnerable home routers and built a botnet from them. Well telling people to hold of on FW updates is reasonable until the issue can be identified. Not all router problems stem from FW or the router itself. Most of the issues stem of other HW configurations and some from incorrect user setup. Other issue can be found at the ISP level and data lines running up to the ISP modem and the ISP modem itself. Updating FW could be compounding the problem and not finding the real reason why the device isn't working. These device do work coming out of the box. I grant you there maybe a few lemons out there. These devices are not like PCs and have been built to handle various attacks. Besides, I don't see or hear of very many hackers going after Mrs Smith or Mr. Joe home PC very often trying to again access to top secret information. REALLY? 

That being said, I do agree that switching to different channels might improve things, but usually wireless overcrowding does not lead to disconnects, rather poor performance (signal, transfer rate).

The more likely culprit here is self-denial-of-service. Resource exhaustion because of poor resource management in the software. I've seen lots of people with similar problems report them all gone after switching to DD-WRT, which by default uses settings similar to D-Link's firmware. It just handles things better. Well you and everyone else has the choice to use OEM or DD-WRT FW. Theres nothing holding anyone back. However some people have newly purchased routers so putting non OEM might not be an option as it would void the warranty or return policy if they wish to RMA or return the unit. Not all people are technically adept at loading DD-WRT on these devices. Loading other FW on these routers maybe a quick fix however how long will it last? I've loaded DD-WRT and I like it, however it's too complicated for the average or home user IMO. Yes it offers many other options and such for us Techy guys who like to tinker. I didn't see much of a performance difference between OEM and the DD-WRT FW and went back to OEM.

I'm sorry to say this, but I got tired of trying to find excuses for D-Link's firmware a long time ago. Way too many similar reports to be just a coincidence. It's simply ****. Well I agree that the FW could be more stable however we should try to help people with there problems and try to help them have a better experience with there routers. Just having them update FW probably wont fix the issue. Overall we should be trying to help everyone trouble shoot there systems to make sure they are running well from the ISP modem down through the router. The routers only work well if the upstream data line is working top notch as well. And from what I've seen and heard, sometimes it' starts there.

We live in an imperfect world as we human are imperfect thus we create some imperfect things. I'm just here to see if I can help others get those imperfect items to be just a bit more perfect is all.