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About jsphrcross

Re: SChannel Errors on Windows Systems

by in Security & SD-WAN
‎Mar 10 2023 12:26 PM
‎Mar 10 2023 12:26 PM
Agreed.  I am in the process of disabling it on all of our MX's that have it/have it enabled.  Bad thing is that in order for it to take affect, the router must be rebooted.  We don't want downtime during business hours and Meraki doesn't allow you to schedule a reboot.  😕 ... View more

Re: SChannel Errors on Windows Systems

by in Security & SD-WAN
‎Mar 10 2023 10:21 AM
5 Kudos
‎Mar 10 2023 10:21 AM
5 Kudos
After ~ 3 hours on the phone with Meraki I have a "bandage" to resolve this until an update to fix it is released.  I was informed that Meraki is aware of the issue and is working on a solution.  No ETA as to when the actual fix will be known.  Meraki also stated that this is only affecting MX84's.  I suspect it may affect other models as well that the setting listed below is available on.   Solution:  Disable Web Cache and reboot router. Security & SD-WAN -> SD-WAN & Traffic Shaping   Unfortunately a reboot is required for the change to take effect.   I hope this helps anyone currently having the issue.     ... View more

Re: New MX 18.106 Stable Release Candidate - multiple reliability and perfo...

by in Security & SD-WAN
‎Mar 10 2023 10:17 AM
5 Kudos
‎Mar 10 2023 10:17 AM
5 Kudos
After ~ 3 hours on the phone with Meraki and sharing the information provided by @IDV , @Raphael, @dgander , @dade80vr  & @dade80vr we have a "bandage" to resolve this until an update to fix it is released.  I was informed that Meraki is aware of the issue and is working on a solution.  No ETA as to when the actual fix will be known.  Meraki also stated that this is only affecting MX84's.  I suspect it may affect other models as well that the setting listed below is available on.   Solution:  Disable Web Cache and reboot router. Security & SD-WAN -> SD-WAN & Traffic Shaping   Unfortunately a reboot is required for the change to take effect.   I hope this helps anyone currently having the issue.     ... View more

Re: New MX 18.106 Stable Release Candidate - multiple reliability and perfo...

by in Security & SD-WAN
‎Mar 10 2023 8:34 AM
‎Mar 10 2023 8:34 AM
I am on the phone with Meraki right now working it.  I just shared your information with them.  Thanks @IDV  ... View more

Re: SChannel Errors on Windows Systems

by in Security & SD-WAN
‎Mar 10 2023 7:20 AM
‎Mar 10 2023 7:20 AM
FYI, I am now seeing the issue on MX84's running 18.106.  It seems to take a few hours for it to rear its ugly head after an upgrade so my advice is to allow systems to run overnight to 24 hours on the upgraded firmware and then check your Windows systems for the SChannel issue.  The Schannel issue seems to show 100% of the time as the websites are sporadic.  Therefore that is what I would look for during your testing.   I have opened a ticket with Meraki and they have asked me to call in to do some tracing.  Planning on doing that shortly.   Here is another discussion we found today that talks about the websites.   https://community.meraki.com/t5/Security-SD-WAN/New-MX-18-106-Stable-Release-Candidate-multiple-reliability-and/td-p/185854   More to come. ... View more

Re: New MX 18.106 Stable Release Candidate - multiple reliability and perfo...

by in Security & SD-WAN
‎Mar 10 2023 6:33 AM
‎Mar 10 2023 6:33 AM
Hey dade80vr   I have been having the same issues upgrading to v17.10.4.  I have ticket open with Meraki as of yesterday.  I have rolled back (3) organizations so far and have many more orgs to deal with.  Not only are some sites not loading sporadically, Windows systems are receiving this error in the logs ~ every 10 seconds:  SChannel (event ID 36876) errors in Event Viewer -> Windows Logs -> System     along with systems are not being allowed to report into our Carbon Black AV servers.  It seems the newer firmware/s believe the certs have expired or aren't valid.  I am still collecting data but it seems to affect the MX84's more.  Can you confirm if your issues are on MX84's and/or you see the SChannel errors on Windows systems in your environment/s?   My post here in the community is here.  I have only had once response.   https://community.meraki.com/t5/Security-SD-WAN/SChannel-Errors-on-Windows-Systems/m-p/187260#M43866 ... View more

SChannel Errors on Windows Systems

by in Security & SD-WAN
‎Mar 8 2023 1:11 PM
1 Kudo
‎Mar 8 2023 1:11 PM
1 Kudo
Hello   Trying to determine if anyone else is having issues with SChannel (event ID 36876) errors in Event Viewer -> Windows Logs -> System after upgrading MX router firmware to MX 17.10.4?  The errors occurs ~ every 10 seconds and randomly prevents some websites from opening.  Not all websites and a website that won't load will load later and then stop loading again.  Cannot find any errors within the Meraki logs.  It seems the issues are more predominant on MX84 routers.  It also seems to be preventing the Carbon Black clients from reporting back to the system servers.   I just rolled two MX84 routers back to firmware MX 17.10.2.  Over the past hour all websites are accessible and the SChannel errors have stopped.  Carbon Black has also started reporting again.  I do want to give it more time (overnight) to make sure it is resolved.  However I wanted to see if anyone else has experienced anything like this after upgrading to MX 17.10.4.   Thanks!!! ... View more
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