@pchiodo said in Most Workstations Don't Ping But Are Connected - Some Network Apps Are Locking Up:
@garak0410
Hmm. in reading your error message it refers to COM+, but this doesn't seem right. It appears WMI may not have the correct fire wall rules.
On the Hyper-V server try this:
netsh advfirewall firewall set rule group="Windows Management Instrumentation (WMI)" new enable=yes
netsh advfirewall firewall set rule group="Remote Event Log Management" new enable=yes
Pretty sure Symantec mucked up Windows Firewall.
You might try turning it off for testing and see if the problems go away. Then you'll know specifically if it is firewall related.
Trying this...
I did find an old SpiceWorks ticket (thank goodness for documenting) I opened over a year ago when we moved to the Cloud Based Symantec. It was titled New Anti-Virus - DHCP/DNS Issues. But my fault, I didn't document it very well at the solution...at the time, it said I couldn't ping or even connect to C$ on most workstations...my solution read as this:
"The File/Print sharing option was not allowed in firewall profile. I added it but it still didn't work. It was set to RED and not green."
That doesn't tell me much...don't know if I changed it on the Symantec End, Windows Firewall end and if that, which server?
I really do think Symantec mucked up some things...
Also side note, I have Webroot uninstalled on a suspect machine that will not PING and I actually have all of WebRoot's firewall turned off for all machines...still pinging issues...so guessing it is on the server(s) that I removed Symantec from.