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2820n WiFi issues
- jonhd
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13 Aug 2009 16:52 #1
by jonhd
2820n WiFi issues was created by jonhd
First, just to acknowldege, there are plenty (of WiFi issues with the 2820n) (':evil:')
I'm curious to know whether any others have experienced the sort of problems I'm seeing...
Variety of WiFi devices (2x Logitech Squeezeboxes - one 802.11B/WEP-only, so I've ethernet-connected it via a Belkin 802.11G/WPA "AP extender"; 4 laptops with various WiFi chipsets - mostly 802.11G; a FetchTV 8000 Freeview box; a Vigor N61 802.11n USB WiFi adaptor to try on any of the laptops when I've got a problem; etc....)
I'm using WPA/TKIP, have tried various Channels (but there's not too much traffic around where I live), set for 802.11b/g/n Mixed Mode, and MAC address access control. 3.3.2.1 firmware. A couple of devices are DHCP, but most are fixed IP. When I get the problem I'm about to describe, it hits all devices equally!
One problem occurs, as far as I can tell, when the vacuum cleaner is used, in proximity to the 2820n (which is situated on a window ledge - not on the floor!). I'd guess the cleaner never gets closer than approx. 2m. (to the 2820n). Afterwards, all WiFi connectivity is 'down'. There are no problems apparent when I look at the router's various web pages - everything appears to be healthy (ADSL still up & working) - all of this ascertained, of course, via a PC that is ethernet connected.
So, I try a soft reboot. No good (no WiFi connectivity - but, the WiFi RF signal is present, with a decodable SSID, etc.). Try again. No good.
Try a hard reboot (power cycle). No good. Try again. No good.
Try all sorts of things - enable/disable WiFi from the web pages; from the front-panel switch. Re-enter the WPA/TKIP passphrase. Change the RF channel. Even revert to 3.2 series firmware... All no good. No WiFi connectivity from any device in the house. (I've noticed that *sometimes* it takes up to 5 minutes [e.g. after a reboot] for the WiFi RF signal to re-appear.)
The three times this has happened, I've tried all of these things. And in all three cases, WiFi connectivity spontaneously sprang back to life after a looooong time - approx. 45 mins. today - for no apparent reason (i.e. I wasn't doing anything, other than hassling my kid to get ready to go out to PC World so I could buy a Belkin WAP!).
All very disappointing, and rather negates the point (reliability - at least my old 2800 was) in shelling-out for a Vigor product... I can accept that a vacuum cleaner motor might cause WiFi interruption, but why should the recovery process (whatever that actually is!) be so tortuous?
Problem 2: I've been using the rather nifty inSSIDer WiFi monitor, to look for WiFi RF discontinuties, and haven't spotted any - whatever the WiFi 'dropout' problem is, that others have described, I think it's above the PHY layer. That said, the 2820n's RF RSSI pattern is the most variable (+\- 15dB) I've ever come across - it's always, by far, the dominant signal that I'm looking at (compared to WAPs in adjacent houses), and nowhere near to the noise floor... See
here
.
Anyways, the point being that whatever the cause of the discontinuities is, it makes VPN (Cisco VPN client) absolutely unusable. The VPN client never stays up for more than a minute or two. Disappointing!
Any comments / commiserations, etc.? (Ideally from a Draytek techie...)
Cheers, Jon
I'm curious to know whether any others have experienced the sort of problems I'm seeing...
Variety of WiFi devices (2x Logitech Squeezeboxes - one 802.11B/WEP-only, so I've ethernet-connected it via a Belkin 802.11G/WPA "AP extender"; 4 laptops with various WiFi chipsets - mostly 802.11G; a FetchTV 8000 Freeview box; a Vigor N61 802.11n USB WiFi adaptor to try on any of the laptops when I've got a problem; etc....)
I'm using WPA/TKIP, have tried various Channels (but there's not too much traffic around where I live), set for 802.11b/g/n Mixed Mode, and MAC address access control. 3.3.2.1 firmware. A couple of devices are DHCP, but most are fixed IP. When I get the problem I'm about to describe, it hits all devices equally!
One problem occurs, as far as I can tell, when the vacuum cleaner is used, in proximity to the 2820n (which is situated on a window ledge - not on the floor!). I'd guess the cleaner never gets closer than approx. 2m. (to the 2820n). Afterwards, all WiFi connectivity is 'down'. There are no problems apparent when I look at the router's various web pages - everything appears to be healthy (ADSL still up & working) - all of this ascertained, of course, via a PC that is ethernet connected.
So, I try a soft reboot. No good (no WiFi connectivity - but, the WiFi RF signal is present, with a decodable SSID, etc.). Try again. No good.
Try a hard reboot (power cycle). No good. Try again. No good.
Try all sorts of things - enable/disable WiFi from the web pages; from the front-panel switch. Re-enter the WPA/TKIP passphrase. Change the RF channel. Even revert to 3.2 series firmware... All no good. No WiFi connectivity from any device in the house. (I've noticed that *sometimes* it takes up to 5 minutes [e.g. after a reboot] for the WiFi RF signal to re-appear.)
The three times this has happened, I've tried all of these things. And in all three cases, WiFi connectivity spontaneously sprang back to life after a looooong time - approx. 45 mins. today - for no apparent reason (i.e. I wasn't doing anything, other than hassling my kid to get ready to go out to PC World so I could buy a Belkin WAP!).
All very disappointing, and rather negates the point (reliability - at least my old 2800 was) in shelling-out for a Vigor product... I can accept that a vacuum cleaner motor might cause WiFi interruption, but why should the recovery process (whatever that actually is!) be so tortuous?
Problem 2: I've been using the rather nifty inSSIDer WiFi monitor, to look for WiFi RF discontinuties, and haven't spotted any - whatever the WiFi 'dropout' problem is, that others have described, I think it's above the PHY layer. That said, the 2820n's RF RSSI pattern is the most variable (+\- 15dB) I've ever come across - it's always, by far, the dominant signal that I'm looking at (compared to WAPs in adjacent houses), and nowhere near to the noise floor... See
Anyways, the point being that whatever the cause of the discontinuities is, it makes VPN (Cisco VPN client) absolutely unusable. The VPN client never stays up for more than a minute or two. Disappointing!
Any comments / commiserations, etc.? (Ideally from a Draytek techie...)
Cheers, Jon
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