Couple of users are keep getting disconnected from client VPN after upgrading to MX 16.14

[jay_b]

We have couple of users who is keep disconnecting after an hour or may be 2 times in hour. Random times. I took PCAP and I see informational packets but nothing more. User disconnected at 13:15:05.

Can someone help me to troubleshoot this pcap ? TIA

[cmr]

@jay_b if you can I'd upgrade to 16.15 as that is the current stable release candidate

[jay_b]

@cmr  For 16.15 we are not too sure yet. I can see this thread talking about it is not stable :

https://community.meraki.com/t5/Security-SD-WAN/MX250-upgrading-to-MX-16-15-There-is-an-increased-ri...

[PhilipDAth]

Is this a warm spare configuration?  If so, I'd had issues with the MX's crashing, which drops all the client VPN connections.

[jay_b]

@PhilipDAth  MX is defiantly not crashing. All  users are staying up except 2 users. Those 2 users are having constant but random timing disconnects. 

I was in impression on 15.44 is having issue with warm spare. Is it carrying over with 16.14 too ?

[PhilipDAth]

I'm not sure that the warm spare crashing issue is resolved in 16.14.

If only two users are affected - it is almost certainly an issue with the CPE that they are connecting through from home.  I'd start by upgrading those CPE.  If the CPE has been running for a while you could also try asking the users to give them a power cycle.

[ComtechSystems]

I'm getting the same problem too. It started the night I upgraded to 16.

I was able to trace it to a file size issue. After connecting to VPN, I use robocopy to create an offsite backup. When it gets to a 4GB file, it disconnects halfway through.

After reconnecting to VPN and rerunning script, it will complete, but it means I have to do it manually now. @Meraki any ideas??