E8350 - bad upstream performance when LAN clients connect with 1000mb/s
Our office LAN is all 100/1000mbs capable. Our internet provider is 100 mb/s symmetric internet. We believe we've found an issue with upstream buffering in the E8350.
A) A laptop connecting at 100mb/s directly to the E8350 is able to upload at 80 megabits/s
B) The same laptop, connecting via 1000bt directly to the E8350 only gets 10 megabits/s or so
C) Other laptops connected through our LAN at 1000bt also suffer poor performance
D) Putting an older switch which is only capable of 100mb/s between our 1000bt LAN and the E8350 throttles correctly, and we can obtain higher upload speeds for the entire network.
We suspect that in situations A & C, the E8350 is not throttling/buffering traffic arriving on the 1000bt connection correctly, causing the poor upload speeds.
Firmware version is 1.0.0
1000bt? what is that? Do you mean 1000Mb? or 1Gb?
Preferred connections with this router is the use of 1000Mb or 1Gb adapters and switches and CAT6 LAN cabling for wired LAN conections. 100Mb could slow down some performance and you'll not be able to use the 1Gb connection pipe.
Is these connections on the wired LAN cables?
Ensure all devices with wired LAN connectons support 1000Mb or 1Gb speeds.
Ensure all devices with LAN adapter cards are updated for dirvers.
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>http://en.wikipedia.org/wiki/CAT6 is recommended.
Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask.
http://kb.linksys.com/Linksys/ukp.aspx?vw=1&docid=88e63d78588142e6bb68e22d7faf2046_Configuring_the_M...
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 Mixed on 5Ghz?
Channel Width set for Auto 20/40Mhz.
Try setting a manual Channel 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. http://en.wikipedia.org/wiki/List_of_WLAN_channels
http://kb.linksys.com/Linksys/ukp.aspx?vw=1&docid=f2625b15a5d7454b8e7fafbe65d5aa63_4009.xml&pid=80&r...
What security mode are you using? Preferred security is WPA-Personal. WPA2 Only. http://kb.linksys.com/Linksys/ukp.aspx?vw=1&docid=8ce9e83bd3784001aee72da7f1ef48e8_Changing_the_basi...
http://kb.linksys.com/Linksys/ukp.aspx?pid=80&vw=1&articleid=19073
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?
Any other WiFi routers in the area? Link> Use http://www.techspot.com/downloads/5936-inssider.html to find out. Use v3. How many?
WMM Support must be enabled for single wireless N mode to function.
http://kb.linksys.com/Linksys/ukp.aspx?vw=1&articleid=5471
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://kb.linksys.com/Linksys/ukp.aspx?vw=1&docid=d9a3b1b2039741948a2365b053a93ea8_3759.xml&pid=80&r...
http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-esse...
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{13BEAC7C-69C1-4A9E-89A3-D5F311DE2B69}
{C5586971-E3A9-432A-93B7-D1D0EF076764}
I'm sure there's others one, just be mindful that this add-in will have numerous product codes.
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