ar430w = Strange latency, ping timeouts, what is going on?

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deaconboogie
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Joined: 25 Nov 2008
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PostPosted: Tue Nov 25, 2008 1:34    Post subject: ar430w = Strange latency, ping timeouts, what is going on? Reply with quote
Folks,

I'm a longish-time user of DD-WRT on Buffalo equipment. Been using it for a long time with great success. Today, I decided to deploy an Airlink ar430w for a project because the router was $14.95 at Fry's and it's on the DD-WRT list. (I am not replacing any Buffalo gear, this is a side project for a client.)

After flashing, no apparent problems in the UI. When I got around to testing it, that's a whole other story. Configuration is basic AP mode, no DHCP server (getting DHCP leases from Win2K3 DHCP server).

So it's up, broadcasting an SSID, and I can associate to it no sweat.

The following problems occur either via wireless or wired -- any time I am going through the ar430w this happens. So I doubt it's the radio.

The problems:

1. I can ping servers only sporadically. Packet loss appears to be 90% on wireless, 60% on wired.

2. When pinging the AP management IP itself, sometimes I see huge latency spikes in the 300-500ms range for 5-10 seconds at a time, sometimes the requests time out.

3. And I think this is related, but my mobile phone cannot obtain an IP, or it times out. It can associate just fine, but it never gets an IP.

This is all very strange. I've never had any problems with Buffalo hardware. Now I feel as if I may be up the creek with a lemon Airlink.

Are these problems normal for Atheros hardware?
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Sash
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Joined: 20 Sep 2006
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Location: Hesse/Germany

PostPosted: Tue Nov 25, 2008 16:01    Post subject: Reply with quote
install the latest pre sp2
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deaconboogie
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Joined: 25 Nov 2008
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PostPosted: Tue Nov 25, 2008 16:24    Post subject: Reply with quote
May I use the built-in updater or do I need to use the RedBoot stuff again?
remaker
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Joined: 19 Jan 2008
Posts: 140

PostPosted: Wed Nov 26, 2008 9:29    Post subject: Router or AP Reply with quote
Are you using it as a router or an AP?

If you are running AP only, there is a known bug with ARP handling. Even if you are only running as an access point, activate the WAN port... do NOT leave it disabled.

That is a workaround. I don't know when it will be fixed.
thuytle99
DD-WRT Novice


Joined: 15 Nov 2008
Posts: 16

PostPosted: Wed Nov 26, 2008 10:10    Post subject: Reply with quote
The latest version 111908 unstable on client Brigde and Brigde... lost connection with main route as well as internet somehow... I would wait for the fix.
deaconboogie
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Joined: 25 Nov 2008
Posts: 3

PostPosted: Wed Nov 26, 2008 21:31    Post subject: Re: Router or AP Reply with quote
remaker wrote:
Are you using it as a router or an AP?

If you are running AP only, there is a known bug with ARP handling. Even if you are only running as an access point, activate the WAN port... do NOT leave it disabled.

That is a workaround. I don't know when it will be fixed.


That was very helpful, thanks! We're working correctly now, as I expected.

Should I revert back to SP1 or stick with this current pre-SP2 release?
thuytle99
DD-WRT Novice


Joined: 15 Nov 2008
Posts: 16

PostPosted: Thu Nov 27, 2008 5:59    Post subject: Reply with quote
It's up to your end... I had rollback to SP1... then wait for the fix and/or might have to order special edition... more stable I guess Smile
Sash
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Joined: 20 Sep 2006
Posts: 17619
Location: Hesse/Germany

PostPosted: Thu Nov 27, 2008 16:40    Post subject: Reply with quote
deaconboogie wrote:
May I use the built-in updater or do I need to use the RedBoot stuff again?

update via web-if will work

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