# Cannot access node-red via zerotier from PC

**URL:** <https://discourse.nodered.org/t/cannot-access-node-red-via-zerotier-from-pc/54025>\
**Category:** General\
**Tags:** node-red-dashboard, security\
**Created:** [20 November 2021 10:08 UTC](https://discourse.nodered.org/t/cannot-access-node-red-via-zerotier-from-pc/54025 "2021-11-20T10:08:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![thanakhanp](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/thanakhanp/32/51346_2.png) [@thanakhanp](https://discourse.nodered.org/u/thanakhanp)\
**Post date:** [20 November 2021 10:08 UTC](https://discourse.nodered.org/t/cannot-access-node-red-via-zerotier-from-pc/54025/1 "2021-11-20T10:08:39Z")

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I cannot access node-red :1880 via PC and cannot ping from both side.  
I have tried use some cloud VM instance log in through ssh to device that install node-red. It can login and can ping to 8.8.8.8 and ping back to VM

Any ideas TY

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**Author:** ![PiMo131](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/pimo131/32/34978_2.png) [@PiMo131](https://discourse.nodered.org/u/PiMo131)\
**Post date:** [20 November 2021 21:28 UTC](https://discourse.nodered.org/t/cannot-access-node-red-via-zerotier-from-pc/54025/2 "2021-11-20T21:28:11Z")

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What is your nodered running on?

A windows device?

Both ping and nodered are by default firewall blocked. Disable firewall to see if it works then.

If it works without firewall turn it back on, but open port 1880 and allow ping rule

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [19 January 2022 21:28 UTC](https://discourse.nodered.org/t/cannot-access-node-red-via-zerotier-from-pc/54025/3 "2022-01-19T21:28:51Z")

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