# A client cannot open the webApp
**URL:** https://forum.deepar.ai/t/a-client-cannot-open-the-webapp/589
**Category:** SDK
**Tags:** web-sdk
**Created:** [March 11, 2024, 4:53pm UTC](https://forum.deepar.ai/t/a-client-cannot-open-the-webapp/589 "2024-03-11T16:53:49Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Camilo\_Adams](https://forum.deepar.ai/u/Camilo_Adams)
#### Post date: [March 11, 2024, 4:53pm UTC](https://forum.deepar.ai/t/a-client-cannot-open-the-webapp/589/1 "2024-03-11T16:53:49Z")
my client use firewall configuration, this configuration locks the webapp, i need help with the ports, to allow the webapp work…
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### Author:  [@jelena](https://forum.deepar.ai/u/jelena)
#### Post date: [March 12, 2024, 9:25am UTC](https://forum.deepar.ai/t/a-client-cannot-open-the-webapp/589/2 "2024-03-12T09:25:26Z")
Hi could you maybe share a bit more info about what exactly happens?
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### Author:  [@Camilo\_Adams](https://forum.deepar.ai/u/Camilo_Adams)
#### Post date: [March 12, 2024, 2:18pm UTC](https://forum.deepar.ai/t/a-client-cannot-open-the-webapp/589/3 "2024-03-12T14:18:39Z")
the client is using a VPN called zscaler, tha VPN blocks the web app
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### Author:  [@jelena](https://forum.deepar.ai/u/jelena)
#### Post date: [March 13, 2024, 5:39pm UTC](https://forum.deepar.ai/t/a-client-cannot-open-the-webapp/589/4 "2024-03-13T17:39:26Z")
I’m sorry to hear that, but I’m not sure how we can help. Have you checked with zscaler
suppoer? Is the VPN giving any reason why it’s blocked?