07-19-2023 10:16 PM
Hi all,
I am testing out Windows 11 on a new Dell Latitude 5440. When not on the VPN the network works fine but after connecting to the company VPN I start to drop packets. A continuous "ping <IP Address> -t" will show about every 5th ping timing out. Web pages barely load and file transfers are extremely slow. I put a Win 10 machine on the same network and all tests pass without any issue. I tried to capture packets using Microsoft Network Monitor but the failed packets aren't even making it that far. It's almost like the driver is locking up. If I connect via WiFi, Ethernet, or Dock + Ethernet I get the same result. I looked at the DART extract and couldn't see anything that jumped out. I just reimaged today and the problem still occurs. I've also tried resetting IP / Winsock and updating all drivers. Does anyone else have this issue with Win 11? Any places I should look? Thanks!
Anyconnect Versions Tested
4.10.05111
4.10.07061
07-27-2023 08:03 AM
07-27-2023 11:06 AM
I was able to fix this by joining the Windows Insider program and updating Windows 11 to the July cumulative update preview release. There was a bug introduced in a previous update which causes performance problems on some routers (such as Eero) and the Cisco VPN.
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