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Trust Domain issues over Wifi

I have a wireless network that is using a 5508 WLC (running 8.3.122.0), and AIR-LAP1142N-A-K9. My users are having trust domain relationship issues with their laptops when connected to WiFi. I have isolated this problem to WiFi by connecting the Laptops directly with a LAN cable and they do not have this issue. I think this has something to do with AP isolation but am not sure. Does anyone have any clue what could be causing this?

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This may sound weird but it was the TCP adjust MSS option on the new APs. Unchecking it seems to have fixed the issue.

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Sounds like a software bug or driver issue in the client.
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I would agree except it happens on multiple clients with different wifi cards.