D-Link Forums
The Graveyard - Products No Longer Supported => Routers / COVR => DIR-850L => Topic started by: cata92sv on February 18, 2015, 08:17:27 AM
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I've just installed windows 8.1 in my laptop and after an annoying fight with "limited connectivity" problem I finally managed to connect my laptop to internet. But the results are disastrous. My internet speed (via cable) is 500 mb/s (tested). Using the 2.4 ghz I should get in speed tests about 300 mb/s right? But I get between 2 mb/s and 20 mb/s at most. My Firmware Version : 1.12WW and Hardware Version : A1
I cannot understand what is going on...when I use the Microsoft driver for the Broadcom Wireless Adaptor (laptop: Lenovo V570) I cannot connect to internet at all (limited connectivity) and when I use the Broadcom driver I get this speed.
Please help !
Thanks
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Link>Welcome! (http://forums.dlink.com/index.php?topic=48135.0)
- What region are you located?
- Has a Factory Reset (http://blog.dlink.com/what-is-a-reset-button-when-should-i-use-it) been performed?
- Was a Factory Reset performed before and after any firmware updates then set up from scratch?
>FW Update Process (http://forums.dlink.com/index.php?topic=42457.0)
Internet Service Provider and Modem Configurations
- What ISP Service do you have? Cable or DSL?
- What ISP Modem Mfr. and model # do you have?
- Is ISP Modem/Service using Dynamic or Static WAN IP addressing?
- What ISP Modem service link speeds UP and Down do you have?
- Check cable between Modem and Router, swap out to be sure. Link> Cat6 is recommended. (http://en.wikipedia.org/wiki/CAT6)
- Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values (http://forums.dlink.com/index.php?topic=53008.0)
Wireless Configurations
Links>Wireless Installation Considerations (http://forums.dlink.com/index.php?topic=48327.0) and Managing Signal Congestion (http://forums.dlink.com/index.php?topic=53228.0) and Good Neighbour Policy (http://forums.dlink.com/index.php?topic=10634.0)
- Ensure the default (dlink) SSID name is changed. Ensure that different SSID names are used between each WiFi 2.4/5Ghz radios. Can be anything and not something that's already in use by any neighbouring WiFi routers. Under Setup/Wireless/Manual.
- What wireless modes are you using?
- 2.4Ghz and 5Ghz routers: Try single mode G or N or mixed G and N on 2.4Ghz and single mode N or AC on 5Ghz?
- Channel Width set for Auto 20/40Mhz or try 20Mhz only.
- Try setting a manual Channel (http://en.wikipedia.org/wiki/Wireless_channels) to a open or unused channel. 1, 6 or 11. 11 for single mode N if the channel is clear. 13 for EU regions. Try channel 48 or 149 on 5Ghz.
- What security mode are you using? Preferred security is WPA-Personal. WPA2/AES Only. Some WiFi adapters don't support AES (http://en.wikipedia.org/wiki/Advanced_Encryption_Standard), so you might want to try TPIK (http://en.wikipedia.org/wiki/Temporal_Key_Integrity_Protocol) only or Auto TPIK and AES.
- What wireless devices do you have connected?
- 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 (http://www.techspot.com/downloads/5936-inssider.html) to find out. How many? Use v3, its free.
- If you have any of these options, Try turning OFF or ON Short GI (http://www.smallnetbuilder.com/wireless/wireless-features/30969-what-do-80211ns-optional-features-mean-for-you), WLAN Partition, Extra Wireless Protection and 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. Recommended settings are default. Under Advanced/Advanced Wireless.
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 (http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-essentials)
PC 3rd Party Security Software Configurations
- Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
- Turn off all devices accept for one wired LAN PC while testing.
- Disable any downloading client software managers, i.e. Torrents or similar.
Its not really recommended to speed test via WiFi due to many variables that can cause inaccurate results....Wired speed testing is preferred. Also Mfr wireless device design and support will be a factor. LAN wired speed testing is recommended first and foremost..
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Any status on this? ???
I've just installed windows 8.1 in my laptop and after an annoying fight with "limited connectivity" problem I finally managed to connect my laptop to internet. But the results are disastrous. My internet speed (via cable) is 500 mb/s (tested). Using the 2.4 ghz I should get in speed tests about 300 mb/s right? But I get between 2 mb/s and 20 mb/s at most. My Firmware Version : 1.12WW and Hardware Version : A1
I cannot understand what is going on...when I use the Microsoft driver for the Broadcom Wireless Adaptor (laptop: Lenovo V570) I cannot connect to internet at all (limited connectivity) and when I use the Broadcom driver I get this speed.
Please help !
Thanks