We have large installation with AP10-AP30. After latest firmware upgrade some clients with WinXP machines, experienced WiFi upload speed degradation. After researching of problem I found that 802.11n Mode (high throughput mode MIMO) is not working properly, which is enabled by default. At least for WinXP machines with Intel WiFi chipset 801.11n Mode should be disabled. Win7,8 and mobile phones working as expected.
This thread was automatically locked due to age.
