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[pwalden]

HW Version: A1, FW Version 1.07WW

I have had my 880l for about 3 months. Was working fine. Then about 4 weeks ago I notice the 2.4GHz band is not showing in an SSID list scanner I have.

I rebooted the router and that seemed to cure the problem, then last week it disappeared again. Another reboot made it pop up in the scan list for about 1 minute, then it disappears. I went in and tried adjusting the 2.4GHz advanced settings. Whenever I saved a change, the SSID would pop up, but shortly disappear.

I scanned this forum and see that some problems like this were cured by doing a factory reset. I have tried this several times in between firmware updates and I still have the same problem. Except that now the 2.4 band SSID will occasionally pop up without making any settings changes.

When I do try to connect to th 2.4 band whenever it is visible or by specifying it by name, the connect fails. Sometimes with an out of range error.
The 5GHz band continues to work just fine. I am only having problems with the 2.4GHz band.

I have no 2.4GHz wireless phones.  I have another 2.4GHz access point, at the other end of the house using a different SSID and channel (6 versus 1)

[RYAT3]

Are your antennas good? Snug? Have you tried moving the antenna around to different ones? (That's a long shot)

[FurryNutz]

Link>Welcome!

• 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?

What wireless modes are you using?
Is Smart Connect enabled or disabled?

• 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 a WiFi Scanner to find out. How many?

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

I recommend upgrading FW to the following: v1.08
http://forums.dlink.com/index.php?topic=65883.0

HW Version: A1, FW Version 1.07WW

I have had my 880l for about 3 months. Was working fine. Then about 4 weeks ago I notice the 2.4GHz band is not showing in an SSID list scanner I have.

I rebooted the router and that seemed to cure the problem, then last week it disappeared again. Another reboot made it pop up in the scan list for about 1 minute, then it disappears. I went in and tried adjusting the 2.4GHz advanced settings. Whenever I saved a change, the SSID would pop up, but shortly disappear.

I scanned this forum and see that some problems like this were cured by doing a factory reset. I have tried this several times in between firmware updates and I still have the same problem. Except that now the 2.4 band SSID will occasionally pop up without making any settings changes.

When I do try to connect to th 2.4 band whenever it is visible or by specifying it by name, the connect fails. Sometimes with an out of range error.
The 5GHz band continues to work just fine. I am only having problems with the 2.4GHz band.

I have no 2.4GHz wireless phones.  I have another 2.4GHz access point, at the other end of the house using a different SSID and channel (6 versus 11)

[pwalden]

   

What region are you located?

Northwest USA

I

nternet Service Provider and Modem Configurations

    What ISP Service do you have? Cable or DSL?
    What ISP Modem Mfr. and model # do you have?

Comcast Cable, their cable modem I have to rent for $10/month. It is just a modem. It does nt have any bridge or WiFi.

What wireless modes are you using?

2.4GHZ

Code: [Select]

Security Mode: WPA/WPA2-Personal
802.11 Mode: Mixed 802.11b/g/n
Wi-Fi Channel: 1
Transmission Power: High
Channel Width: Auto 20/40 MHz
HT20/40 Coexistence: Enabled
Visibility Status: Visible
5GHz

Code: [Select]

Security Mode: WPA/WPA2-Personal
802.11 Mode: Mixed 802.11a/n/ac
Wi-Fi Channel: Auto
Transmission Power: High
Channel Width: Auto 20/40/80 MHz
Visibility Status: Visible

Is Smart Connect enabled or disabled? NO

   

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

No, explain in original post
   

Any other WiFi routers in the area that maybe causing interferences? Link> Use a WiFi Scanner to find out. How many?

No, explained I have an SSID scanner. No other conflicting  WiFi sources nearby.

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.

The SSID scanner is portable and is with 5ft of the DIR-880l

[FurryNutz]

Try changing 2.4Ghz to single mode N and to channel 11.

[pwalden]

As I originally stated: 

I went in and tried adjusting the 2.4GHz advanced settings. Whenever I saved a change, the SSID would pop up, but shortly disappear.

Anyway I tried changing 2.4Ghz to single mode N and to channel 11 again.  No change. The SSID appears for about a minute before disappearing.

[FurryNutz]

Please update FW using this link and the linked FW update process:
http://forums.dlink.com/index.php?topic=65883.0

Don't load any saved config files. Just set up from scratch and test.

If this fails then I would phone contact D-Link support and ask for an RMA.