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[Tanq]

Hi.
I had the same problem, but only with two clients. One is computer with TP-Link TL-WN727N USB wireless card and another is HP Officejet 7500A printer. Other clients (two laptops, one with Intel PRO/Wireless 3945ABG and another with Qualcomm Atheros AR5009 802.11a/g/n wireless adapter) worked with no problem.
After initial setup and firmware update (to version 1.05) i can connect both problematic client, but after 8 hours (next day in the morning) i can't connect anymore. Only router reboot helped.
Router is on table near RaspberryPi, wireless phone and modem are approximately 1m away and the same is true for another electrical devices. Nearest router is 100m-150m (air line) away at my neighbours house. All router settings are on default values except wireless name and password (WPA mode, WPA or WPA2, TKIP and AES)
Then i set fixed channel for both bands (channel 11 in 2.4GHz band and channel 36  in 5GHz band) and mixed 802.11 g and n mode for 2.4GHz band as suggested above. After that it works, no problem with connection.
Can someone explain me why this settings worked? Isn't that something that should work out-of-the-box?

[FurryNutz]

Link>Welcome!

• What region are you located?
• Was a Factory Reset performed before and after any firmware updates then set up from scratch?
• Was the router working before any firmware updates?

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 ISP Modem service link speeds UP and Down do you have?

Could be many things since it's WiFi as there many variables.

• 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.

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."
6" minimum safe distance between devices.

Hi.
I had the same problem, but only with two clients. One is computer with TP-Link TL-WN727N USB wireless card and another is HP Officejet 7500A printer. Other clients (two laptops, one with Intel PRO/Wireless 3945ABG and another with Qualcomm Atheros AR5009 802.11a/g/n wireless adapter) worked with no problem.
After initial setup and firmware update (to version 1.05) i can connect both problematic client, but after 8 hours (next day in the morning) i can't connect anymore. Only router reboot helped.
Router is on table near RaspberryPi, wireless phone and modem are approximately 1m away and the same is true for another electrical devices. Nearest router is 100m-150m (air line) away at my neighbours house. All router settings are on default values except wireless name and password (WPA mode, WPA or WPA2, TKIP and AES)
Then i set fixed channel for both bands (channel 11 in 2.4GHz band and channel 36  in 5GHz band) and mixed 802.11 g and n mode for 2.4GHz band as suggested above. After that it works, no problem with connection.
Can someone explain me why this settings worked? Isn't that something that should work out-of-the-box?

[Tanq]

Region: EU, country: Slovenia (si)
I had same issue with stock firmware (version 1.01), even after factory reset. Then i installed latest version (1.05), do a factory reset and the issue still persist. Wireless start working properly after i set what i mentioned previously.
My ISP is Ario (i think it's cable thru wireless - i have a dish outside). Modem is Thompson THG540. Connection speed is 1Mb/256kb.
I have cordless house phone approx. 1m away from router (that was i meant previously with wireless phone).
inSSIDer finds only one "router". It's a long range antenna. Signal strength is -90, channel 1, security WEP, 802.11b.

[FurryNutz]

Does the cordless house phone operation on or near the 2.4Ghz or 5Ghz frequency?

Ensure PC Wireless adapter card drivers are up to date.

If you are using the 860L as an AP, did you follow this for setting it up?
Turning a router into an AP.

Region: EU, country: Slovenia (si)
I had same issue with stock firmware (version 1.01), even after factory reset. Then i installed latest version (1.05), do a factory reset and the issue still persist. Wireless start working properly after i set what i mentioned previously.
My ISP is Ario (i think it's cable thru wireless - i have a dish outside). Modem is Thompson THG540. Connection speed is 1Mb/256kb.
I have cordless house phone approx. 1m away from router (that was i meant previously with wireless phone).
inSSIDer finds only one "router". It's a long range antenna. Signal strength is -90, channel 1, security WEP, 802.11b.

[Tanq]

First cordless phone is Philips CD 150 and it's connected to another one (Panasonic KX-TG1100FX) downstairs. Both operate at frequency range from 1.88 GHz to 1.9 GHz.

[FurryNutz]

Should be ok then...

First cordless phone is Philips CD 150 and it's connected to another one (Panasonic KX-TG1100FX) downstairs. Both operate at frequency range from 1.88 GHz to 1.9 GHz.

[robstoon]

I've seen some apparent instability in 2.4GHz wireless connections to this router when I had the 2.4GHz channel width set to 20/40 MHz Auto. There's a coexistence mechanism defined in 802.11n where if the router detects other APs active using the other part of the 40 MHz channel it's supposed to stop using 40 MHz to prevent occupying too much of the band. I suspect that in some cases it flip-flops between 40 MHz on and off and causes disruptions to the wireless connections. Things seem more stable on 2.4 with the channel width set to 20 MHz.

[FurryNutz]

I recommend that if users have a N mode only envrionment and client devices to support N mode only and there are other neighboring WiFi around, You can disable the HT20/40Mhz Co-existence feature and run Auto 20/40Mhz.

Also review this:
Managing Signal Congestion and Good Neighbour Policy

I've seen some apparent instability in 2.4GHz wireless connections to this router when I had the 2.4GHz channel width set to 20/40 MHz Auto. There's a coexistence mechanism defined in 802.11n where if the router detects other APs active using the other part of the 40 MHz channel it's supposed to stop using 40 MHz to prevent occupying too much of the band. I suspect that in some cases it flip-flops between 40 MHz on and off and causes disruptions to the wireless connections. Things seem more stable on 2.4 with the channel width set to 20 MHz.