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Enphase · Setup guides

Enphase setup & how-to guides

STS engineers explain this setup procedure for Enphase systems step by step. Click any topic below for the full guide, free to follow. If the WiFi still won't connect after the guide, we can set it up on site, from £195.
  • The step-by-step guide is free to follow
  • On-site WiFi setup, from £195
  • All major brands supported

Brilliant. He fitted a new dongle and set the system up properly. Even better, he explained why the storage batteries don't work in a power cut - not correctly wired up - expensive to fix, but a simple turn of the master switch will give emergency power. He is the third technician to look at this issue and the only one to resolve it. Friendly and appoachable, comes when he says he will and reasonable charges. What's not to like!

GEOFFREY EADE · Jul 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

We were having problems with our inverter, couldn’t get an early response from our installer a stressed conversation between our installer and solar tech support led to a text to us to authorise connection to your company . Ron was a very helpful and knowledgeable man who tried with a bit of difficulty as we are pensioners and very knowledgeable. Spent time on phone without making us feel small.we would recommend this company if you have any problems. Thanks Ron 5 star

Me and the boss · Aug 2026 Trustpilot

Amazing! I was having trouble with a flat GivEnergy battery and solar panels not working. I contacted through WhatsApp and we managed to get it all sorted within a couple of days! Super fast service. I can’t thank you enough for your help when my installer didn’t want to know and GivEnergy has gone in to administration! I know where to go if anything happens again!

Chrissy For · Oct 2026 Google

Any long suffering Givenergy customers are strongly recommended to use solar tech support. They fixed my battery issue in couple of hours.

Sarma Amirapu · May 2026 Trustpilot

Ronald was able to organise a brilliant electrician with extensive experience of GivEnergy systems local to me in the SW. I have now got a fully functioning system and suspect that my electricity bill will be substantially reduced or in credit over a year. Also when said electrician discovered an overvoltage in the my local grid, Ronald prepared a very lucid and comprehensive report of the situation which I have now supplied to my local grid. Cannot recommend Ron and Dan enough.

Ian Macmillan · Jul 2026 Google

Last updated

What needs setting up on Enphase kit

Almost all the setup work on an Enphase system happens at the Envoy, also called the IQ Gateway. The microinverters behind each panel look after themselves, but the Envoy is the box that pushes data to the Enlighten portal, and it is the one thing that needs reconfiguring when anything changes on your home network. The most common job by far is reconnecting the Envoy to a new router after a broadband upgrade, an ISP switch or a WiFi password change.

The catch is that the Envoy cannot reconnect on its own. It has no screen and no way to prompt you for a new password, so it keeps trying the old network indefinitely until someone reconfigures it through the Enphase Installer Toolkit app and the Envoy's AP mode. Meanwhile, the microinverters usually keep running while the Envoy is offline, so check your generation meter. Often only the data stream to Enlighten stops, which is why so many people only notice weeks later. Most Envoy models talk 2.4GHz WiFi only, so 5GHz-preferred phones and mesh routers with band steering catch people out, and WPA3 can stop the Envoy accepting an otherwise correct password.

As independent engineers we're happy for you to reconnect the Envoy yourself with our step-by-step guide, free, and if it still won't connect, we can set it up on site, from £195. If it's the Enlighten account rather than the WiFi, the remote diagnostic is free, and if we can sort it remotely the fix is £125, no fix, no fee. Anything else that genuinely needs a site visit is from £295 and quoted before anyone travels.

FAQ

Enphase setup questions answered

Download the free Enphase Installer Toolkit app and log in with an Enphase account. Press the AP mode button on the Envoy, a small recessed button on the side or bottom, and hold it for about a second so it broadcasts its own network. On your phone, connect to the WiFi network named ENVOY_ followed by the serial number; your phone will warn there is no internet, which is expected. Open the app, go to network settings, pick your new home WiFi and enter the password carefully, as a mistyped password is the most common cause of failure. The Envoy's network LED turns solid green within a few minutes once it connects, and Enlighten resumes uploading. Our full step-by-step walks through all six steps.
Two things catch most people out: first, most Envoy models only support 2.4GHz, so if your router broadcasts separate bands, select the 2.4GHz network; if it combines both under one name, the Envoy should pick 2.4GHz automatically. Second, if the password is rejected even though it is correct, the router may be on WPA3, which the Envoy may not support, so switch it to WPA2 or WPA2/WPA3 mixed mode. Repeated drops usually mean the WiFi signal is simply too weak where the Envoy is fitted, often a garage, loft or cupboard, and the permanent fix is ethernet: the Envoy has an ethernet port and prioritises a wired connection over WiFi, and a powerline adapter at around £30 to 40 can bridge the distance if the router is far away. If the signal still won't reach, we can fit a WiFi extender on site: our WiFi setup visit is from £195, and the extender is an extra £75.
Reconnecting the Envoy yourself with our step-by-step guide is free. If it still won't connect, we set it up on site, from £195: we connect it to your WiFi, set up your router, including a separate 2.4 GHz network if it needs one, and check it's reporting. If the signal doesn't reach, a WiFi extender is an extra £75, and we carry them with us. A locked Enlighten account is remote work: the remote diagnostic is free, we can help recover or transfer Enlighten access if your installer set the system up under their own login, and a remote fix is £125, no fix, no fee.
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Need an Enphase engineer?

Tell us what's happening with your Enphase Envoy. If it still won't connect after our guide, we can set it up on site, from £195. We don't set up or diagnose WiFi remotely or over the phone: it's quicker and more reliable done on site. For an Enlighten account or transfer, the remote diagnostic is free.

  • No remote WiFi setup or diagnosis: we come to you
  • Emergency response within 4 hours during business hours
  • Written report regardless of outcome

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