Global protect VPN resulting in Internet connection cutoff

[alzhao]

Try change mtu in your windows.

Can't connect to Windows L2TP VPN through GL-X3000 / Spitx AX

I have a GL-X3000 / Spitx AX I’ve purchased and I’m using to connect to Tmobile home internet. Everything is working great, except when try to connect to my office VPN. I’m not able to establish a connection from my Windows 10 PC (connected to the Spitx AX) to my office VPN, which uses a Cisco Meraki L2TP/IPsec VPN. I get the following error on my Windows 10 PC (VPN client) when trying to connect to my office VPN: “Cannot connect to VPN, The L2TP connection attempt failed because the security la…