Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

LBN_163833's avatar
LBN_163833
Icon for Nimbostratus rankNimbostratus
Jul 21, 2014

Can't access my virtual server in (performance)HTTP type.

Hi all,   I created a virtual server in HTTP(performance) type, the problem is that when i try to access it via web - I get nothing. When I change the type to standard, I can access by web.   D...
BIG-IP Access Policy Manager (APM)
BIG-IQ
management
security
Kevin_Stewart's avatar
Kevin_Stewart
Icon for Employee rankEmployee
Jul 23, 2014

Okay, so I stopped being lazy and tested it out for myself. You are indeed correct. On an 11.5.x system, it appears that if you switch between standard and performance HTTP virtual server types, it stops working. You can sometimes cycle back and forth from a performance layer 4 and get it to work, but the most reliable option has been to bigstart restart the system. This is definitely not a desirable experience. Would you mind opening a support ticket?