slow download performance with windows 7 on Cisco 2960S

[matouses]

has someone experience with the the windows 7 on Cisco 2960S.
One customer had the issue with very slow download rate ( 500kByte) with 100MB / full duplex and  default tcp paramenter under win 7 with IOS 12.2.55SE1.
No error was seen.

The change of follwing in windows improve the performance a litte bit to 1-2 MByte.

no compression, no tcp windowing, no received side scaling, no windows side heuristic, no checksum offloading and a smaller MTU size than default.

After update the Switch to 12.2.55.SE2 the performance imporve to 4-12 MByte.
Has someone an idea about the chances in IOS 12.2.55SE2. I cant find anything in RN about this issue.

Best regards
Steffen

[Gdaee_Admin]

I have the same issues in WS-C2960G-48TC-L  . my downloads dropped in my lan from 2 mb/s to 100kb/s in all operating systems including linux workstations . my ios version is 12.2(44)SE5 in 2960 switches .

i have 2 x 4503-E L3 and 14 2960-48TC-L switches but i can not access the new ios versions to test if the issue is coming from ios version because of end of support .

can someone ensure that the new ios remove this issue ?