Online connection - browse for targets

[SvenG (Sven Goetgeluck)]

Hello,

I have a big problem on all of my as versions that are installed ( 4.2 - 4.3 -4.9 4.12), i cannot find any PLC connected to my computer,

When my plc have an IP number that was assigned before the problems started, i can download the software but when a want to assing an IP number to a new plc i cannot find the device.

i’ve tried to reinstall as 4.12 ,

I’ve reinstalled pvi manager with the latest version

installed SNMP service

disables windows defender

removed norton antivirus,

but no luck , maybe someone has solved this

with regards

Sven

[valerio.manenti]

Hi @SvenG ,
interesting topic,
Do you see them at least with wireshark? Determining a PLC’s IP Address using Wireshark - Share Info & Ideas / How-To & Wikis - B&R Community

Ciao
Valerio

[SvenG (Sven Goetgeluck)]

Hey Valerio,

New PLC do not have an IP adress ( x20cp0411 and x20CP0484 ) allready programmed plc i can see them in run mode but they do not appear in the browsing screen

sven

[valerio.manenti]

Hi Sven,

which AS 4.12 are you using? I see we have an issue: ’ Browse for targets never finishes and no SNMP response is received’ fixed in the version 4.12.11.2 SP:

Plus I’m sure you have activated SNMP in the cpu configuration:

Am I wrong?

Ciao
Valerio

[SvenG (Sven Goetgeluck)]

Hey Valerio

but all my versions that are installed have this issue and all my projects

plc’s that were programmes earlier i can still connect to but even those i do not see in the window

Sven

[valerio.manenti]

Hi Sven,

let’s focus on AS 4.12 first. I see you have 2 options: you can install the AS service pack or you have to downgrade your PVI:

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I understand this is frustrating, but when you report an AS issue, we do need to verify that your specific AS version is supported by your PC’s operating system:

Ciao
Valerio

[SvenG (Sven Goetgeluck)]

Hello,

i’ve updated same issue,

i understand that some versions do not work on certain windows versions,

but suddenly everything stopped ,

thank you for your help

sven

[valerio.manenti]

but suddenly everything stopped

I can’t prove that but may be a side effect of some windows upgrades…

No other ideas for the moment Sven.

[SvenG (Sven Goetgeluck)]

no proplem thank you for your time

Sven

[alexander.hefner]

Hi,

not sure if it helps, but: as far as I remember, the PVI4 snmp functions use the WinPCap driver for low level network packet inspection.
If that driver is damaged or updated from another software to a incompatible version, I could imagine that snmp does not work anymore.

So I would sugest to

• check in the extracted PVI setup if you find a setup named winpcap
• execute just this setup
• if asked for “deinstall installed version”, confirm and deinstall it
• restart and try again

I’m not at PC right now, so I can’t give more conrete advice.
But maybe it’s worth a try?

[valerio.manenti]

Hi @SvenG ,
I have found another issue regarding SNMP:

Could you try to update PVI too?

============
Unfortunately that version is not available yet:

Ciao
Valerio

[SvenG (Sven Goetgeluck)]

Hey Alexander,

i’ve tried this allready ,

also runned the batch file to check

Sven

[valerio.manenti]

Hi @alexander.hefner ,
I don’t see that file:

Ciao
Valerio