# How to change wifi password on emon pi ver1

**URL:** <https://community.openenergymonitor.org/t/how-to-change-wifi-password-on-emon-pi-ver1/30340>\
**Category:** Emoncms\
**Tags:** emonpi\
**Created:** [18 September 2026 22:49 UTC](https://community.openenergymonitor.org/t/how-to-change-wifi-password-on-emon-pi-ver1/30340 "2026-09-18T22:49:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jonharnew](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/jonharnew/32/10026_2.png) [@jonharnew](https://community.openenergymonitor.org/u/jonharnew)\
**Post date:** [18 September 2026 22:49 UTC](https://community.openenergymonitor.org/t/how-to-change-wifi-password-on-emon-pi-ver1/30340/1 "2026-09-18T22:49:22Z")

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Help have origional eamon pi I installed a new router today and my pi can no longer access the wifi so i presume it needs the password updating for the router. Please can anyone tell my how to do this. i have not realy had any problems since I installed it 7or8 years ago and it took me a couple of months to get it running proprlyn at install and have had no real problems since then then.Build emonSD- 30oct18. would be really grateful for any help

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**Author:** ![jonharnew](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/jonharnew/32/10026_2.png) [@jonharnew](https://community.openenergymonitor.org/u/jonharnew)\
**Post date:** [18 September 2026 23:48 UTC](https://community.openenergymonitor.org/t/how-to-change-wifi-password-on-emon-pi-ver1/30340/2 "2026-09-18T23:48:51Z")

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Panic over i pluged lap top into the ethernet port got the normal log in screen and was able to change the password and it seems to be working OK now

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**Author:** ![Robert.Wall](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/robert.wall/32/38246_2.png) [@Robert.Wall](https://community.openenergymonitor.org/u/Robert.Wall)\
**Post date:** [19 September 2026 00:03 UTC](https://community.openenergymonitor.org/t/how-to-change-wifi-password-on-emon-pi-ver1/30340/3 "2026-09-19T00:03:05Z")

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By far the _ **best** _ way (in my opinion) is to change the SSID and password of your new router to be the same as the old. This way, you don’t have to change SSID & password in everything that uses your Wi-Fi LAN, emonPi included.

If you can’t do this, or you’ve already changed everything else, I think you have two options:

1. Connect to your router via Ethernet and use Setup → Network and choose your network, then type in the password, or
2. Take the SD card out and edit the wpa\_supplicant file - see [Setup WiFi on a Pi Manually using wpa\_supplicant.conf - Raspberry Pi Spy](https://www.raspberrypi-spy.co.uk/2017/04/manually-setting-up-pi-wifi-using-wpa_supplicant-conf/)

(If you need to move the emonPi, remember to go through the shutdown routine using the button on the front.)

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**Author:** ![jonharnew](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/jonharnew/32/10026_2.png) [@jonharnew](https://community.openenergymonitor.org/u/jonharnew)\
**Post date:** [19 September 2026 11:44 UTC](https://community.openenergymonitor.org/t/how-to-change-wifi-password-on-emon-pi-ver1/30340/4 "2026-09-19T11:44:09Z")

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Thank you for your reply I was able to connect by ethernet and log straight in to change my password but next time I will take your advice and keep the router name and password the same.