Delay in accessing the network after connecting to SSL VPN + ZTNA

Hello

Try check in firewalls traffic log why the packets are blocked during the first minutes.

IS the resources access via https proxy ? if its simple sslvpn then you can enable DTLS on FCT and SSL VPN setting on FortiGate also check the MTU size in policy

Hello @pegasokra  ,

Thank you for contacting the Fortinet Forum portal.

-I would recommend verifying if the firewall policy is flow-based or proxy-based along with any inspections enabled on the firewall policy.

-Does it affect all users or specific user?

-Is there any particular time in the day or week they reported or all the time?

-Can you confirm the firmware version of fortiEMS and Forticlient you are using along with FortiGate?

-Please make sure DTLS is enabled on Forticlient along with Fortigate

https://community.fortinet.com/t5/FortiGate/Technical-Tip-Using-DTLS-to-improve-SSL-VPN-performance/ta-p/193881

-Have you done any recent upgrades or changes on configurations?

Best regards,

Manasa.

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Hello,

I had the same problem on 2 new computers installed on our network. Both DELL and when removing the Dell Optimizer software the VPN connections normalized access.