# Refused to connect after tried connecting to firebase and Exception code access violation

**URL:** <https://discourse.nodered.org/t/refused-to-connect-after-tried-connecting-to-firebase-and-exception-code-access-violation/56694>\
**Category:** General\
**Created:** [15 January 2022 09:27 UTC](https://discourse.nodered.org/t/refused-to-connect-after-tried-connecting-to-firebase-and-exception-code-access-violation/56694 "2022-01-15T09:27:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![falia](https://avatars.discourse-cdn.com/v4/letter/f/71c47a/32.png) [@falia](https://discourse.nodered.org/u/falia)\
**Post date:** [15 January 2022 09:27 UTC](https://discourse.nodered.org/t/refused-to-connect-after-tried-connecting-to-firebase-and-exception-code-access-violation/56694/1 "2022-01-15T09:27:04Z")

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Hello 😀

I'm using windows 11 and tried to connect node-red to firebase real-time database using node-red-contrib-firebase palette. But after the flow shows disconnected, node-red keeps on lost connection. I restarted node-red and my laptop many times. Sometimes it connected but only for a short 10 seconds.

In those short 10 seconds, I have removed the flow from the palette. I have also removed node-red-contrib-firebase but it still didn't solve the problem, node-red still refused to connect.

When it first refused to connect, this showed up on cmd:

```auto
Exception code=0xc0000005 flags=0x0 at 0x00007FF7A3C8C72E. Access violation - attempting to read data at address 0x0000000000000000

```

My node-red version is v1.1.3. How can I fix this problem?  
Thanks 😀

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<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [16 January 2022 07:23 UTC](https://discourse.nodered.org/t/refused-to-connect-after-tried-connecting-to-firebase-and-exception-code-access-violation/56694/2 "2022-01-16T07:23:01Z")

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Welcome to the forum @falia

Please stop node red and start it again in a terminal. Then copy/paste here the full startup log from the terminal.

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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:** [17 March 2022 07:23 UTC](https://discourse.nodered.org/t/refused-to-connect-after-tried-connecting-to-firebase-and-exception-code-access-violation/56694/3 "2022-03-17T07:23:49Z")

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