# Iode os firewall

**URL:** <https://community.iode.tech/t/iode-os-firewall/7314>\
**Category:** System and Apps\
**Created:** [2 December 2025 14:29 UTC](https://community.iode.tech/t/iode-os-firewall/7314 "2025-12-02T14:29:28Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![el\_ale](https://community.iode.tech/letter_avatar_proxy/v4/letter/e/9de053/32.png) [@el\_ale](https://community.iode.tech/u/el_ale)\
**Post date:** [8 December 2025 21:21 UTC](https://community.iode.tech/t/iode-os-firewall/7314/7 "2025-12-08T21:21:16Z")

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Hello; I am new here and far from me to be unsympathetic, but I made some tests with and without VPN (proton VPN here), and my results are prompting me to say the same as in

> [@Slow VPN connections on smartphone](https://community.iode.tech/t/slow-vpn-connections-on-smartphone/1362):
>
> Hi there, I use a VPN to connect to my office network, over 4G, with the Strongswan app. Here’s the weird thing: connection speeds are great when I use my PC (PC → smartphone (USB Tether) → VPN through 4G → office server): ~60 Mbps connection speeds are so slow they are barely usable when my smartphone is used directly (smartphone → VPN through 4G → office server): \<1MBps So far I haven’t bee able to find something relevant on the Internet, any idea would be appreciated, Thanks.

I also made a simpler test:

Phone + VPN → 1.7 Mbps

Phone (hotspot) → Tablet + VPN → 18 Mbps

This last easier to reproduce.

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