Author Topic: Problems with DD-WRT 17798 update  (Read 6515 times)

Derwinator

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Re: Problems with DD-WRT 17798 update
« Reply #15 on: February 07, 2012, 02:37:36 pm »

Got it running and not sure if it's working or not yet.  When I was on earlier today, the network disappeared again but came back up after about 30 seconds. Checking the router shows that it rebooted.  So, it doesn't appear that it will prevent the network from dropping out but will just reboot the router when it does?

 

BTW, on my Mac I can Telnet into the router and use vi to read the syslog messages just fine.  Putty not required.  Thanks for the tips.

 

Thanks,

Darren


dyounkin

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Re: Problems with DD-WRT 17798 update
« Reply #16 on: February 08, 2012, 07:02:36 am »

This is most definately a step in the right direction. This has worked for these routers being set up a wireless print servers and mass connections with laptops. I have found out that this firmware almost freezes the wireless card when there are too many connecting devices trying to pull bandwidth. 

 

Other tweaks that I have made:

 

Changed Channel width to Dynamic (20/40) -- this will give the capibility for 130MB/s on wireless G (If using the AG model the 400Mhz band

Increase the TX power to 25 dBm

Increase the Antenna Gain to 5 dBi

 

Depending on your wireless set up WPA2 is always slow but...

WPA2 Personal Mixed

TKIP+AES

3600 Second renewal

 

Enable UPnP Service

Keep Alive Schedule Reboot Enabled, Set at 18:00. (During a down time when you or anyone else will not be there using wifi)

 

Good Luck

 

 


Derwinator

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Re: Problems with DD-WRT 17798 update
« Reply #17 on: February 08, 2012, 10:21:34 am »

I do not see the options to change channel width to dynamic under the Advanced wireless settings.  Also, TX power is set to 20 dBm however the status claims that I have only 13 dBm?  And for some reason antenna gain is set to 192 dBi?

 

I'm pretty much on par with you for wireless security and Keep Alive settings.

 

Thanks,

Darren


dyounkin

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Re: Problems with DD-WRT 17798 update
« Reply #18 on: February 08, 2012, 12:55:23 pm »

Check out these articles...

 

http://www.tomshardware.com/picturestory/571-wi-fi-beamforming-networking.html

http://www.tomshardware.com/reviews/wi-fi-performance,2985.html

 

They will help a lot.

 

13 dBm may be a result of interference with other wireless devices. I could be possible to change channels to help avoid this.(it's in the article --> channels==frequencies) The farther distance in frequency the less interferance will be resulting. Think of it like radio stations 99.1 and 99.2 are very hard to separate and give good listening music. But 99.1 and 105.9 have no issues and sound great.

 

Your antenna gain should not be set that high. Think about the TX power as the distance projection and the dBi as the shape of the radio waves being projected from the antenna.

The higher the TX power the further distance that you can be way or the more **bleep** can be between the laptop and the router. But be careful the higher this setting gets the more likely you will burnout the radio. Yes it's possible. I think the max is around 251 dBm

 

Image a shape that is perpendicular to the antenna(s).

1 dBi representation is a sphere  O

5 dBi is more like a classic UFO shape  <>

10 dBi is like a disk   --

15 dBi is like a thin disk --

@ 192 dBi your making it a laser beam (good for 100ft but bad for 20ft)

 

Granted that the shape changes as soon as it comes in contact with a object. Sound moves well through air but not through walls or metals. The more tweaking you do the better it will get. However, the more you push it the closer you are to damaging the radios. 

Not Supported under Warranty!!! (I think)

 

The other thing to try is set to TKIP and go to your laptop and force it to use TKIP. If it no longer connects, reboot and try again (sometimes it hangs). If it still doesn't work switch them to AES and try again.

 

 

 

 

Weird why isn't any buffalo Tech's chimming in right now???? Hello.........???

 


Derwinator

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Re: Problems with DD-WRT 17798 update
« Reply #19 on: February 08, 2012, 01:16:42 pm »

The weird thing is that I've not messed with the advanced wireless settings before and found these setup as mentioned (by default?).  I have installed a couple of 9 dBi high-gain antennas in place of the stock ones the router came with.  I'm getting decent coverage around my house and full bandwidth for my network.  Should I set the gain settings to 9 dBi and TX power to 25 dBi?


dyounkin

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Re: Problems with DD-WRT 17798 update
« Reply #20 on: February 08, 2012, 01:43:04 pm »

sounds great! 


Derwinator

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Re: Problems with DD-WRT 17798 update
« Reply #21 on: February 13, 2012, 10:18:56 am »

Well, I've been running with these settings for about a week and it seems stable enough.  I noticed that changing to 25 dBm TX speed in the advanced wireless settings had no effect on the reported TX speed (still showed 13) but I later switched to Auto channel and today I noticed it's reporting 16 dBm.  An improvement, not 25 dBm of course, but improvement none the less.  I also noticed the wireless packet error rate seems to have dropped since changing the antenna gain to 9 dBi so that's also good news.  I'm still using Keep Alive to reboot daily at 2am.  At this point, I'm probablty going to wait for a non-alpha release of the DD-WRT firmware before I try updating again.

 

Thanks again for all of the tips and advice!

 

Darren


crammed

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Re: Problems with DD-WRT 17798 update
« Reply #22 on: February 13, 2012, 06:15:21 pm »

"Weird why isn't any buffalo Tech's chimming in right now???? Hello.........???"

 

EXACTLY!!!!!


dyounkin

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Re: Problems with DD-WRT 17798 update
« Reply #23 on: February 15, 2012, 07:07:48 am »

Happy to hear that you have cleared up some issues. Good luck. If you have any other tweeks that you find that works message me about them.


dyounkin

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Re: Problems with DD-WRT 17798 update
« Reply #24 on: May 15, 2012, 08:43:15 am »

I found that using the ddwrt firmware 18777 has corrected alot of issues. Clients are not dropping off and connection speeds are much better. Caution this will void your warranty.

 

http://www.dd-wrt.com/dd-wrtv2/down.php?path=downloads%2Fothers%2Feko%2FBrainSlayer-V24-preSP2%2F2012%2F03-19-12-r18777/

 

Select your device and upgrade firmware.

 

 


slybunda

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Re: Problems with DD-WRT 17798 update
« Reply #25 on: May 15, 2012, 10:36:35 am »

18777 is a good firmware. it wont be long now for a new buffalo release for the v1 hardware. v2 already has new firmware version and its working very well from reports.


Derwinator

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Re: Problems with DD-WRT 17798 update
« Reply #26 on: May 15, 2012, 11:27:45 am »

Sadly, my WHR-HP-G300N router has appeared to have died.  Came back from a trip and could no longer access the Internet although LAN connections were working.  Keeps dropping the wireless connection as well.  I tried reboots, factory reset and reapplied the firmware.  Each time I find it no longer routes WLAN to DHCP clients and the wireless connection drops frequently.  Gave up and bought a Netgear N600 dual band router and it was rock solid from the start.  I'm trying to get a hold of Buffalo support to see if I can revive my old router (still under warranty) but haven't had a response from them yet.  Very disappointing....