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[jimerman]

I have found the 826L to be very unstable over multi-week periods of operation.  It will become slow performing as a router, and very slow serving up admin web pages.  So, I have to go through this painfully slow process of logging in, navigating to the admin page, and clicking Reboot Device.

What I would really like to be able to do is schedule regular reboots, like:

[X] Scheduled Reboot
Reboot Every:  [X] Sun [ ] Mon [ ] Tue [ ] Wed [ ] Thu [ ] Fri [ ] Sat
Reboot at:      [ 2 ] : [ 00 ]  [ am ]
  [--Save--]

[FurryNutz]

Link>Welcome!

• What Hardware version is your router? Look at sticker under router.
• Link>What Firmware version is currently loaded? Found on routers web page under status.
• What region are you located?

Internet Service Provider and Modem Configurations

• What ISP Service do you have? Cable or DSL?
• What ISP Modem Mfr. and model # do you have?
• Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values
• For DSL/PPPoE connections on the router, ensure that "Always ON" option is enabled.

Router and Wired Configurations
Some things to try: - Log into the routers web page at 192.168.0.1. Use IE, Opera or FF to manage the router.

• Turn off ALL QoS or Disable Traffic Shaping (DIR only) GameFuel (DGL only and if ON.) options, Advanced/QoS or Gamefuel.
• Turn off Advanced DNS Services if you have this option under Setup/Internet/Manual or under Setup/PARENTAL CONTROL/Set to>None: Static IP or Obtain Automatically From ISP.
• Enable Use Unicasting (compatibility for some ISP DHCP Servers) under Setup/Internet/Manual.
• Turn on DNS Relay under Setup/Networking. Link>Finding Faster DNS Addresses using Name Bench
• Setup DHCP reserved IP addresses for all devices ON the router. Setup/Networking. This ensures each devices gets its own IP address when turned on and connected, eliminates IP address conflicts and helps in troubleshooting.
• Ensure devices are set to auto obtain an IP address.
• If IPv6 is an option on the router, select Local Connection Only or Disable IPv6 options under Setup/IPv6.
• Set Firewall settings to Endpoint Independent for TCP and UDP under Advanced/Firewall.
• Enable uPnP and Multi-cast Streaming under Advanced/Networking. Disable uPnP for testing Port Forwarding rules. Enable IPv6 Multi-cast Streaming for routers that have a Media Server option. Disable IPv6 Multi-cast Streaming if IPv6 or Media Server is not being used.
• Turn off WISH, and WPS under Advanced.
• WAN Port Speed set to Auto or specific speed? Some newer ISP modems support 1000Mb so manually setting to Gb speeds can be supported by the router. Advanced/Advanced Networking/WAN Port Speed
• Set current Time Zone, Date and Time. Use an NTP Server feature. Tools/Time.

Wireless Configurations
Links>Wireless Installation Considerations and Managing Signal Congestion

• Ensure the default (dlink) SSID name is changed. Can be anything and not something thats already in use by any neighboring 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 on 5Ghz?
• Channel Width set for Auto 20/40Mhz or try 20Mhz only.
• 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.
• What security mode are you using? Preferred security is WPA-Personal. WPA2/AES Only. Some WiFi adapters don't support AES, so you might want to try TPIK only or Auto TPIK and AES.
• What wireless devices do you have connected?
• Any cordless house phones?
• Any other WiFi routers in the area? Link> Use InSSIDer to find out. How many?
• If you have any of these options, Try turning OFF or ON Short GI, WLAN Partition, HT 20/40 Co-exhistance and Extra Wireless Protection if you have it. Recommended settings are default. Under Advanced/Advanced Wireless.
• Enable WMM Enable Under Advanced/Advanced Wireless.

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 PC while testing.

I've used my 826L for months and never have to reboot it. There is something else going on I presume as any router should not need to be rebooted unless your doing configurations changes. Let us know the results of the suggestions and questions so we can get a better idea of your situation.

[OC-Carl]

Actually it was my previous Linksys router that experienced the very same symptoms that you described that caused to investigate what was going on and the reason why I ended up with a DIR-826L router.

In MY case, I discovered several things: there are between 8 - 11 other 2.4GHz radios operating in close proximity to my house, the 802.11 channel width is greater than the frequency difference of each channel, which means that only channels 1, 6, 11 are free from interference from each other.  (Channels 2, 3, 4, 5, 7, 8, 9, 10 all "bleed" into each other.)  I have also noticed that over the last few weeks, 4 of my neighbors now operate on channel 1, 4 are on 6 and 3 are set to channel 11.  So no matter what channel I choose, there is "interference".  Using speedtest.net I was getting ~3Mbps via wifi.  The 2 computers that are wired to the the router would get in excess of 27MBps. 

According to specs, the router and the device negotiate down to the slowest speed there is a stable connection.  But have you ever noticed how a radio will fade in and out when you are on the edge of the range of the transmitted signal?  So either the router and the device are smart enough to renegotiate, which seems to cause loss of syncing when I am streaming, or new interference disrupts the currently "stable" signal.  Either way I experienced random, slow, apparently unstable, operation.

Enter the DIR-826L 5GHz radio.  Voila!  Wifi speeds same as wired.  Solid, stable operation while streaming.  So nice NOT to see the wheel start whirling during a particularly intense scene!

So that is my experience.  I found an article titled "10 Reasons Why Your Wifi Is Slow" to be incredibly helpful.  I'm sure you could find such info with Bing, Google, Dogpile, etc.

[OC-Carl]

I have found the 826L to be very unstable over multi-week periods of operation.  It will become slow performing as a router, and very slow serving up admin web pages.  So, I have to go through this painfully slow process of logging in, navigating to the admin page, and clicking Reboot Device.

When "serving up admin web pages" and rebooting are you wired or wireless? 

If it gets "very slow serving up admin web pages" while you are wired, is this something that is cumulative over time?  Like is it fast right after rebooting, but slows down, slower and slower as the weeks go on?

If it gets slower over time, I wonder what logging you may have set?  I remember in another router  forum a person complained of a slow down of router operation over time and he was advised to turn off all logging and especially turn off any debugging features.  Never heard if it fixed his problem or not.  My guess is it did, since most people usually come back with "tried <whatever>, still broke".  Just a suggestion.

[FurryNutz]

Links>Wireless Installation Considerations and Managing Signal Congestion

Actually it was my previous Linksys router that experienced the very same symptoms that you described that caused to investigate what was going on and the reason why I ended up with a DIR-826L router.

In MY case, I discovered several things: there are between 8 - 11 other 2.4GHz radios operating in close proximity to my house, the 802.11 channel width is greater than the frequency difference of each channel, which means that only channels 1, 6, 11 are free from interference from each other.  (Channels 2, 3, 4, 5, 7, 8, 9, 10 all "bleed" into each other.)  I have also noticed that over the last few weeks, 4 of my neighbors now operate on channel 1, 4 are on 6 and 3 are set to channel 11.  So no matter what channel I choose, there is "interference".  Using speedtest.net I was getting ~3Mbps via wifi.  The 2 computers that are wired to the the router would get in excess of 27MBps. 

According to specs, the router and the device negotiate down to the slowest speed there is a stable connection.  But have you ever noticed how a radio will fade in and out when you are on the edge of the range of the transmitted signal?  So either the router and the device are smart enough to renegotiate, which seems to cause loss of syncing when I am streaming, or new interference disrupts the currently "stable" signal.  Either way I experienced random, slow, apparently unstable, operation.

Enter the DIR-826L 5GHz radio.  Voila!  Wifi speeds same as wired.  Solid, stable operation while streaming.  So nice NOT to see the wheel start whirling during a particularly intense scene!

So that is my experience.  I found an article titled "10 Reasons Why Your Wifi Is Slow" to be incredibly helpful.  I'm sure you could find such info with Bing, Google, Dogpile, etc.