The short answer
Activate the WLAN access point, connect to the fronius_2xx network, open 192.168.250.181 and set the new WLAN.
Plain explanation
From the Fronius manual for the Primo/Symo + Datamanager: On the inverter display activate the WLAN Access Point. Connect your phone/laptop to the fronius_2xx… network. The rest of the checklist is below; work through it in order. Owners can do the app and visual checks; any work on the wiring is for the installer.
Steps from the source
- On the inverter display activate the WLAN Access Point
- Connect your phone/laptop to the fronius_2xx… network
- Open 192.168.250.181 in the browser
- Settings > Network: select your home WLAN, click Set, enter the key
- Check Solar.web again; enable Service Messages in Solar.web settings
Source
Fronius support page: SnapINverter (Primo/Symo/Eco) state codes & Datamanager, Datamanager / Solar.web offline sectionwww.fronius.com ↗
Where installers ask this
- Data Source fails to update (r/fronius)
- reddit.com/r/fronius/comments/1jx9gg9/
- reddit.com/r/solar/comments/1h1qi3w/
- reddit.com/r/DeutschePhotovoltaik/comments/1trtbj6/
- reddit.com/r/fronius/comments/1pdrc5u/
General guidance based on the manufacturer's manual or the named source. Always follow the current manual for your exact model and your national code. DC and AC electrical work is for qualified installers only. Not affiliated with or endorsed by any brand named; trademarks belong to their owners.