# SOLVED - Server error when using mobile devices

**URL:** <https://discourse.nodered.org/t/solved-server-error-when-using-mobile-devices/54740>\
**Category:** General\
**Created:** [5 December 2021 12:21 UTC](https://discourse.nodered.org/t/solved-server-error-when-using-mobile-devices/54740 "2021-12-05T12:21:52Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![sneakynuts](https://avatars.discourse-cdn.com/v4/letter/s/b5ac83/32.png) [@sneakynuts](https://discourse.nodered.org/u/sneakynuts)\
**Post date:** [5 December 2021 12:21 UTC](https://discourse.nodered.org/t/solved-server-error-when-using-mobile-devices/54740/1 "2021-12-05T12:21:52Z")

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I have a strange issue i cant sus out.  
When i navigate to Node Red using my mobile devices, i get a error message saying cant connect to server, try again in x seconds.  
But when i'm on my pc, i ahve no issues - So can't be a server issue-right?

Logs dont show any issues or errors, so i cant work out the cause  
Any suggestions?

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [5 December 2021 12:49 UTC](https://discourse.nodered.org/t/solved-server-error-when-using-mobile-devices/54740/2 "2021-12-05T12:49:18Z")

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Obvious questions:

- Is mobile WiFi on and connected?
- is your mobile on same WiFi network as the node-red server?

If yes to both above...

- List out the IP address, mask, gateway of your node-red, mobile and router.

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**Author:** ![sneakynuts](https://avatars.discourse-cdn.com/v4/letter/s/b5ac83/32.png) [@sneakynuts](https://discourse.nodered.org/u/sneakynuts)\
**Post date:** [5 December 2021 13:45 UTC](https://discourse.nodered.org/t/solved-server-error-when-using-mobile-devices/54740/3 "2021-12-05T13:45:20Z")

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Mobile and PC on same network. Mobile is on wifi  
Node red on seperate vlan.  
NR on .20 subnet  
mobile/PC .1 subnet  
Pfsense  
Vlan routing rules in place

Nothing network wise has changed, and all was working just fine last week.  
I even connect my mobile to the .20 network NR is on, and still get same error

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**Author:** ![sneakynuts](https://avatars.discourse-cdn.com/v4/letter/s/b5ac83/32.png) [@sneakynuts](https://discourse.nodered.org/u/sneakynuts)\
**Post date:** [6 December 2021 09:15 UTC](https://discourse.nodered.org/t/solved-server-error-when-using-mobile-devices/54740/4 "2021-12-06T09:15:11Z")

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Doing some more digging and found out what was wrong.  
Samsung galaxy tab 'internet' browser!!!  
tried a new browser and all works as it should be.

Dont know what changed in a recent update to the 'internet' browser, but something broke it...i'm not going to spend time to find out why/what!!

Easy fix - Change browser!!!

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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:** [20 December 2021 09:15 UTC](https://discourse.nodered.org/t/solved-server-error-when-using-mobile-devices/54740/5 "2021-12-20T09:15:51Z")

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