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[Alezis]

I had wifi issues with my galaxy s4 on my dir-655 (that I bought new 8 year ago) and I always ran the 1.21 firmware on it. But my HP DV7 laptop never had a wifi issue and was connecting to 300mbit/s. I've decided to risq and update the firmware on my 655 and it's the worst decision I ever took, it's now even worst on my S4 and the router get really hot.

So I've decided to replace the 655 with a DIR-868L HW:B1 FW:2.03, I've been reading good reviews and smallnet builder rank this router #3 overall.

My S4 has now stable wifi but my laptop is now showing 130mbits instead of 300mbit that I had on my 655.

The 868 has manual wifi settings to 20/40MHz on channel 6. What ever settings I've tried manually or automatic, I am always at 130mbits.

Is there a setting I missed ?

Speaking of missing, I miss the orange UI, there was a lot more settings and parameters and offered a lot more flexibility !

[FurryNutz]

• Was a Factory Reset performed before and after any firmware updates then set up from scratch?

  Link> >FW Update Process

Internet Service Provider and Modem Configurations

• What ISP Service do you have? Cable or DSL?
• What ISP Modem Mfr. and model # do you have?
• What wireless modes are you using?
• Ensure any devices with WiFi adapter drivers are updated.
• Any 2.4Ghz or 5Ghz cordless house phones or WiFi APs near by that maybe causing interferences?
• Any other WiFi routers in the area that maybe causing interferences? Link> Use InSSIDer to find out. How many? Use v3, its free.
• If you have any of these options, Try turning OFF HT 20/40 Co-existence if you have it. Also testing with HT20/40Mhz Co-existence enabled will impact results as well. I prefer to use this option OFF.

Router Placement
Forum User - "Well I feel really dumb. After moving the router away from other electronic devices my speeds are back to normal. Just a heads up for anyone experiencing slow speeds, you might want to move it away from other electronics and see if that helps."
3-6' feet minimum safe distance between devices.
Placement on main level floor and central in the building and WELL ventilated is preferred. Not in basements or closets as building materials, or near by electronics devices could interfere or hinder good signal propagation.
http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-essentials

[Alezis]

answers below:

• Was a Factory Reset performed before and after any firmware updates then set up from scratch?

  Link> >FW Update Process No, the firmware update has been offered as soon I took out the router from the box, I did apply the firmware and then configure the router... so what now ? I have not reset the router BEFORE the update and did not reset AFTER the update...

Internet Service Provider and Modem Configurations Videotron, modem in DHCP

• What ISP Service do you have? Cable or DSL?

Cable

• What ISP Modem Mfr. and model # do you have?

Arris TM722G

• What wireless modes are you using?

2.4GHz n only on ch#6 (the less crowded in regards of my neighbors) set to 20/40MHz as per my 655 was

• Ensure any devices with WiFi adapter drivers are updated.

my wireless card in my laptop has the latest driver and was showing 300mbits/s with my 655

• Any 2.4Ghz or 5Ghz cordless house phones or WiFi APs near by that maybe causing interferences?

no, 1.9GHz

• Any other WiFi routers in the area that maybe causing interferences? Link> Use InSSIDer to find out. How many? Use v3, its free.

besides my neighbors, no but neighbors signal strenght is around -90 to -80, the 868L shows steady levels between -60 to -40

• If you have any of these options, Try turning OFF HT 20/40 Co-existence if you have it. Also testing with HT20/40Mhz Co-existence enabled will impact results as well. I prefer to use this option OFF.

Not sure about this one, I have to figure this out but I did not touch ANY of the parameters where my 655 was showing 300mbits/s on my laptop and the 868L is stuck at 130Mbits/s

Router Placement
Forum User - "Well I feel really dumb. After moving the router away from other electronic devices my speeds are back to normal. Just a heads up for anyone experiencing slow speeds, you might want to move it away from other electronics and see if that helps."
3-6' feet minimum safe distance between devices.
Placement on main level floor and central in the building and WELL ventilated is preferred. Not in basements or closets as building materials, or near by electronics devices could interfere or hinder good signal propagation.
http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-essentials The router is installed at the same place the 655 was so I should get 300Mbits/s if I had those kind of speed with my 655...

There you go, if you need other precisions, please let me know...

[FurryNutz]

Its recommended to perform a reset before and after installing new FW:
Link> >FW Update Process

Disable the HT 20/40Mhz since your running single mode N and test...

What model and Mfr is the wireless adapter thats in the laptop?

[Alezis]

Its recommended to perform a reset before and after installing new FW:
Link> >FW Update Process

Disable the HT 20/40Mhz since your running single mode N and test...

What model and Mfr is the wireless adapter thats in the laptop?

I understand I need to reset before and after firmware update after reading these instructions. The fact is that I did NOT reset before, I took the router out of the box, the router itself suggested to update and I applied a new available firmware. Once the firmware got installed, I started configuring the router. Now what can be done to fix this then ? I just reset the router and start over the configuration ? I can't "undo" the first step as I did not reset the router once out of the box... I thought it's already in "out of the box" mode no ?

Ok I will deactivate the 20/40 and see the result.

The wifi card is a Broadcom 43225 802.11b/g/n running driver v.5.100.82.139, windows states it's the latest driver.

[Alezis]

Fixed ! Removing the HT20/40 now I see 300Mbits/s ! Thanks for the tip !

So if I ever wish to go back to mix mode let's say g/n, I won't be able to get 300Mbits/s ?

[Alezis]

Is this normal though ? Before I had a steady signal at 130Mbits but now at 300Mbits, I get a lot of drops in the signal strenght...

[FurryNutz]

I could. I see your on the same channels as others and would be cause.
Anyone on channel 11?

[Alezis]

I could. I see your on the same channels as others and would be cause.
Anyone on channel 11?

One neighbor on ch11 but regardless of the channel I pick, I will always be overlaping with other neighbors.

You think switching to ch11 will give more stable signal ? Everything seem to be working but I don't know why I see so much fluctuations in the signal strenght...

[FurryNutz]

I use 11. Test and see how it goes...

[FurryNutz]

Any status on this? 

[Alezis]

Any status on this? 

well, I've got another issue with my Galaxy S4 now (which I used to have issue with my 655 too and made me switch to the 868). Now I read that dlink products do not work well with the Galaxy S4...

in regards of the speed, my laptop is always showing 300mbits/s. I don't understand why transfers are still showing aroung 5-7 MBps where technically, 300mbits/s=37MB/s.

Besides seeing dips in the signal when using inssider and "slow" speed transfer (like during backup files), my laptop does not seem to suffer from it.

My S4 though now works and suddenlty says it's lost connection to the server for example when I am on youtube. Connction show full strenght on the wifi, I can see little arrows of up/down traffic flashing but I cannot receive any data from internet.

I need to disconect the wifi and reconnect. When this does not work, I switch bands from 2.4->5 or 5->2.4 and most of the time it start working again for a certain period of time.

My 655 used to make my S4 disconect completely from the wifi. Now the 868 stays connected to the phone but I have no internet...

I've tried to change channel as per your suggestion and it still the same issue, not better, not worst.

So here you go for the udpates...

[FurryNutz]

Is HT 20/40Mhz Co-existance still disabled and mode set for single mode N on 2.4Ghz?

[Alezis]

Is HT 20/40Mhz Co-existance still disabled and mode set for single mode N on 2.4Ghz?

Yes it is deactivated, I am on N mode only.

Funny thing is that my computer shows steady signal today on inssider !

[Alezis]

2.4 config