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Author Topic: Re: Bad WiFi signal strength with all firmwares but ver. 1.00? (EU REGION)  (Read 3817 times)

Blueyed1

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00?
« Reply #15 on: January 04, 2017, 12:13:26 PM »

I have tried to pass this on to D-Link, only suggestion has been changing channels, n only and so on, but that did'nt help. Changed channel from 1 to 11, and the signal og 2,4Ghz got even worst... let see what's next.
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Blueyed1

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00?
« Reply #16 on: January 13, 2017, 07:36:04 AM »

I have written to DLINK support, they are going test this in Taiwan, I hope they come up with something good. :)
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FurryNutz

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00?
« Reply #17 on: January 13, 2017, 01:52:15 PM »

Awesome, thank you for taking this one up. Hope they find the issue.  ;)
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Blueyed1

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00?
« Reply #18 on: January 19, 2017, 06:20:42 AM »

I have got reply from Taiwan support, It looks as this is a intentionall design and is regulated by European rules.
The 890L firmware V1.01b01 first shipping did not including EU power table(Europe transmit power), it use default power table. Final EU wireless TX power table was added at f/W V1.02b01. That is why user find out different signal strength from different firmware.

So the error is not a error but a limation  :(

I testet D-link890L with DD-WRT software, and is deliveres much higher signal strengs on all bands, 2,4 and 5Ghz!! But only if it is set NORDAMERICA REGION. Changing to Denmark (EU), and the signal drops. In the DD-WRT there is also a possibility for setting the TX power and changing it from default 71 mWto 1000mW - 100Mw is EU standart! I did not test to see if that would boost signal strength.

So.... I went back to D-link fw. 1.11, for now. Considering my options.
The DD-WRT firmware looks promising, but there are also some problems. All status lights appear does not work as they should, and also I can not see mac addresses from each of the devices on the network  in the router interface so I can easily book ipadresserne to the devices.

So I dont know what to do... Buy a new router?

/Blueyed1

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FurryNutz

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00?
« Reply #19 on: January 19, 2017, 01:44:13 PM »

Thanks for posting the results. What I was thinking it was.

DD-WRT has it's place and is good if you want all the additional advanced features. There are some draw backs.

Other than the power out put limitation, is the router working for you? If the router is working other wise, I wouldn't see a need to get something else. You might be getting into something that has the same limitation. I would presume so as all router Mfrs have to follow these policies and rules. These rules are in place for a good reason.
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Blueyed1

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00?
« Reply #20 on: January 19, 2017, 10:15:49 PM »

The router works, but does not do what is says on the box



Our home is not that big,, still it does not deliver a much stronger signal than the D-link 655 I have, the 890L is however more powerfull otherwise.
TX power can not be the only thing that is responsible for at strong signal, now that I have testet the 890L, I am a bit disappointed on the 890L.

/Blueyed1
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FurryNutz

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00?
« Reply #21 on: January 20, 2017, 07:51:17 AM »

I presume that your region will be impacted by this for any router Mfr:
https://en.wikipedia.org/wiki/Energy-related_products

I would not fault the router HW or design only that this policy seems to be effecting the signal strength.  ::)
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Blueyed1

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00? (EU REGION)
« Reply #22 on: January 24, 2017, 09:07:04 AM »

Have you any idea on what firmware version to use with DD-WRT on the 890L? I tried to ask this on the DD-WRT forum, but there has been no reply yet. I would consider to use DD-WRT if the led's where working and I could reserve ip's for client on the lan side..

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FurryNutz

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00? (EU REGION)
« Reply #23 on: January 24, 2017, 09:32:09 AM »

Let me go check and see. I know there maybe a WRT LED UI configuration that may need to be set up with in it's UI like here:
This is for OpenWRT
http://forums.dlink.com/index.php?topic=64561.0
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FurryNutz

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00? (EU REGION)
« Reply #24 on: January 24, 2017, 09:43:27 AM »

This is listed for the 890L if you type in dir in there router database search and select the DIR-890L:
http://dd-wrt.com/routerdb/de/download/D-Link/DIR-890L/A1/factory-to-ddwrt.bin/4421
Dated: 2015-04-09

However looking at there beta repo under Other Downloads: http://dd-wrt.com/site/support/other-downloads
http://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2016/12-15-2016-r30949/dlink-dir890l/factory-to-ddwrt.bin
Dated: 12-15-2016
I don't see anything new for 2017 as of yet. I don't know how these FWs work in regards to operation and performances with the 890L.

You have to use the Factory to ddwrt.bin files. If you use the other webflash, you'll loose the ability to revert back to OEM fw as I believe the webflash over writes the OEM nvram partition used for recovery. Please review DDWRTs web pages for migrating to there FW and coming back. I usually just use the routers recovery process to load OEM FW when coming back from DDWRT.
Emergency Recovery Mode

OpenWRT or LEDE FWs doesn't support the 890L.



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Blueyed1

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00? (EU REGION)
« Reply #25 on: February 23, 2017, 10:58:15 PM »

Hi FurryNutz
Never got DD-WRT to work like I wanted to, flashed with both Factory and webflash, but was still able to revert to stock firmware, I guess I must settle with that. DD-WRT did give much better signalpower TX, but there was to many isues with DD-WRT that I did not like.
Back on DLINK FW 1.11

/Blueyed!

This is listed for the 890L if you type in dir in there router database search and select the DIR-890L:
http://dd-wrt.com/routerdb/de/download/D-Link/DIR-890L/A1/factory-to-ddwrt.bin/4421
Dated: 2015-04-09

However looking at there beta repo under Other Downloads: http://dd-wrt.com/site/support/other-downloads
http://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2016/12-15-2016-r30949/dlink-dir890l/factory-to-ddwrt.bin
Dated: 12-15-2016
I don't see anything new for 2017 as of yet. I don't know how these FWs work in regards to operation and performances with the 890L.

You have to use the Factory to ddwrt.bin files. If you use the other webflash, you'll loose the ability to revert back to OEM fw as I believe the webflash over writes the OEM nvram partition used for recovery. Please review DDWRTs web pages for migrating to there FW and coming back. I usually just use the routers recovery process to load OEM FW when coming back from DDWRT.
Emergency Recovery Mode

OpenWRT or LEDE FWs doesn't support the 890L.
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FurryNutz

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00? (EU REGION)
« Reply #26 on: February 23, 2017, 11:41:17 PM »

Roger that.
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FurryNutz

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00? (EU REGION)
« Reply #27 on: August 05, 2017, 12:57:44 PM »

Care to try the new v1.11 B02 Beta build?
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Blueyed1

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Re: Bad WiFi signal strength with all firmwares but ver. 1.00? (EU REGION)
« Reply #28 on: August 08, 2017, 09:48:04 AM »

Sure why not. I am on v.1.11B01 (DIR890LA1_FW111b01.bin, 19.593kb) that I got from DLINK support 03/01/2017.
Where do I find the new version and do you know whats changed?.

I do belive that TX power in the firmware is reduced due to EU rules.
Using ddwrt firmware does increase signal strengt a lot, but adds many non-working things to the firmware/router that I dont like. I wish there was a way to bypass the limitation, since the router deserves to performe better than this  8)
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