Several colleagues and I are experiencing major issues with establishing online connections to PLCs in AS6.
The problems occur both with direct local connections (IP address range 192.168.0.0) and via VPN connections. Occasionally, the connection works as expected, but only sporadically. In most cases, however, no connection can be established, and error 11020 is reported.
In AS4.12, there are no such issues:
In AS6, the connection is not displayed:
The issue occurs regardless of whether an AS4 or an AS6 project is installed on the PLC.
Closing AS4.12 or the legacy PVI Manager (to rule out conflicts caused by parallel operation) does not resolve the issue.
Restarting PVI6 does not help.
Restarting AS6 sometimes helps, although this may simply be coincidental.
We urgently require support with this issue, as AS6 is currently not suitable for productive use in our environment due to these connection problems.
I’ve also enabled SNMP parameters in my B&R environment. When I search with AS4.12, all five controllers are found and displayed. However, when I use AS6.7, it’s very sporadic whether any controllers are displayed at all. Furthermore, it never finds more than one controller at a time.
I can only establish a connection using a controller that is found.
from my understanding something in the 2nd screenshot looks suspicious:
ANSL unencrypted in default setting runs at TCP port 11169, but the /PT parameter is set to 11159.
Sure I can’t say just from the screenshot if this is the cause or if any other parameters aren’t visible, but from what I see I think using PVI ANSL in default /PT should be different.
