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WiFi handoff problem

Forum Wireless Networking : Setup, Configuration & Security WiFi handoff problem

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prky   10-09-2009 at 07:52:21 PM

Ok, I've got 3 PicoStation2 access points, currently flashed to DD-WRT software. Two are connected to the LAN, the third is connected via Client Bridge to one of the others.
They're on separate channels, same SSID and same WEP key.

If I roam from the first AP to the back AP, the wireless part seems to hand off fine. Netstumbler shows that I switch from one MAC/Channel to the other MAC/Channel. However, running a constant ping back to the firewall, as soon as the switch occurs I drop packets for several minutes. As long as I don't physically walk from one to the other both AP's work just fine.

Fortigate 60B Firewall is generating DHCP, connects to an HP Procurve 2510. The HP does have spanning tree enabled but it probably doesn't have to be currently. Fiber runs out to the far end and are connected to secondary small switches.

Any ideas?

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lhejrovsky   05-16-2011 at 04:38:27 PM

Hello did you solve the problem. I have the same - 3 WiFi APs connected to HP Procurve 2510. When I roam client from one AP to other, I loose connectivity to LAN. For few minutes I can ping and access only asociated AP but nothing else on LAN. Clearly switch does not forward. I thought the SPT is to blame, so I turned it off but (to my great surprise) the problem remains the same!

When I connet the 3 APs to small stupid switch it roams like a charm.
Ludek

prky wrote :

Ok, I've got 3 PicoStation2 access points, currently flashed to DD-WRT software. Two are connected to the LAN, the third is connected via Client Bridge to one of the others.
They're on separate channels, same SSID and same WEP key.

If I roam from the first AP to the back AP, the wireless part seems to hand off fine. Netstumbler shows that I switch from one MAC/Channel to the other MAC/Channel. However, running a constant ping back to the firewall, as soon as the switch occurs I drop packets for several minutes. As long as I don't physically walk from one to the other both AP's work just fine.

Fortigate 60B Firewall is generating DHCP, connects to an HP Procurve 2510. The HP does have spanning tree enabled but it probably doesn't have to be currently. Fiber runs out to the far end and are connected to secondary small switches.

Any ideas?


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