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Problem diagnosis · AlphaESS

AlphaESS AlphaCloud Offline — WiFi Dongle, 4G Module & Portal Reconnection

AlphaCloud shows no data, the app says your system is offline, and you have no idea if your SMILE inverter is even working. The good news: it almost certainly is. The communication dongle has lost its internet connection — your solar generation, battery storage, and grid export all continue normally in the background.
  • WiFi & 4G dongle diagnostics
  • AlphaCloud portal restoration
  • All SMILE models supported
AlphaCloud not showing any data?

Most AlphaESS portal connectivity issues are resolved remotely in a single session. We reconfigure the dongle and restore your AlphaCloud access.

Book your free remote diagnosticBack to AlphaESS hub

Independent — not affiliated with AlphaESS.

5.0
13 Trustpilot reviews
Trustpilot Google

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 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

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

I've spoken to Ron a couple of times with issues with my Givenergy installation. Such a friendly knowledge guy very highly recommended. Thank you very much for resolving my issues

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

This company are a rare gem, I had a very unusual problem following a failed firmware upgrade on my GivEnergy kit. I then found out GivEnergy were in administration and had dismissed all their support staff! None of the usual fixes to try and restore my inverter comms would work, and I looked everywhere, forums, GivEnergy youtube support videos - even AI couldn't figure it out. My installer was talking about huge sums for system replacements, and being vague / evasive about if they'd even install replacement GivEnergy inverter. Enter Solar Tech Support, reassuring and knowledgeable from the very start, I've learnt loads about my solar system though the friendly chat while my engineer worked as he diagnosed the problem and figured out a fix procedure that I've not found anywhere else - amazing . If you need solar system repairs - especially if you like me have been left high and dry by GivEnergy, I cannot recommend this company enough. Give them a call.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 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

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

I've spoken to Ron a couple of times with issues with my Givenergy installation. Such a friendly knowledge guy very highly recommended. Thank you very much for resolving my issues

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

This company are a rare gem, I had a very unusual problem following a failed firmware upgrade on my GivEnergy kit. I then found out GivEnergy were in administration and had dismissed all their support staff! None of the usual fixes to try and restore my inverter comms would work, and I looked everywhere, forums, GivEnergy youtube support videos - even AI couldn't figure it out. My installer was talking about huge sums for system replacements, and being vague / evasive about if they'd even install replacement GivEnergy inverter. Enter Solar Tech Support, reassuring and knowledgeable from the very start, I've learnt loads about my solar system though the friendly chat while my engineer worked as he diagnosed the problem and figured out a fix procedure that I've not found anywhere else - amazing . If you need solar system repairs - especially if you like me have been left high and dry by GivEnergy, I cannot recommend this company enough. Give them a call.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot
ℹ️

Key point: AlphaCloud going offline does not mean your solar system has stopped working. The SMILE inverter and SMILE B battery continue operating normally — you just can't see the data remotely until the communication dongle is reconnected.

Diagnostics

5-step AlphaCloud reconnection diagnosis

When AlphaCloud goes offline, the problem is in the communication link between the SMILE inverter and the cloud portal. The dongle has lost internet connectivity. Work through these steps in order.

1

Check the communication dongle LED on the SMILE inverter

The communication dongle plugs into the bottom or side of the SMILE inverter. Locate it and check the LED:

Dongle LED status
Solid green/blue: Connected and transmitting data to AlphaCloud — if portal is still empty, the issue is server-side
Flashing: Attempting to connect — normal during startup, but should not persist beyond a few minutes
Off: No power — dongle is loose in its port, or the dongle hardware has failed

If the LED is off, reseat the dongle firmly in the communication port. A loose dongle is the simplest and most common cause of AlphaCloud going offline.

2

Verify WiFi connectivity to your router

The WiFi dongle requires a 2.4GHz WiFi connection. Common reasons for lost connectivity:

Router replaced: New router means new WiFi password — the dongle still has the old credentials stored
Password changed: Any WiFi password update requires the dongle to be reconfigured
5GHz only: Many modern routers default to 5GHz or use band steering — the AlphaESS dongle cannot see 5GHz networks
Router firmware update: BT, Virgin, and Sky hub updates sometimes reset WiFi settings or enable band steering

Check that your router is broadcasting a 2.4GHz network and that the password matches what is stored in the dongle.

3

Power-cycle the SMILE inverter to reset the communication module

A power cycle clears transient connection failures and cached states:

• Turn off the inverter at the AC isolator
• Wait 30 seconds for internal capacitors to discharge
• Turn the AC isolator back on
• The communication dongle reinitialises on startup and attempts to reconnect to AlphaCloud

This resolves most firmware-induced communication hangs. Data should appear in AlphaCloud within a few minutes of the inverter coming back online.

Note: power cycling the inverter does not lose your working mode settings, charge schedules, or any other configuration.

4

Check the 4G module signal if using cellular connectivity

Some AlphaESS installations use a 4G module instead of WiFi — typically where the inverter is in a garage, basement, or metal enclosure with poor WiFi coverage:

Flashing but not solid: The module has power but cannot establish a data connection — likely a signal issue
SIM deactivated: Some 4G modules use pre-paid SIMs that expire if not topped up or renewed
Poor signal: Metal inverter enclosures and concrete basements severely attenuate cellular signal — an external antenna may be needed
Network outage: Check whether other devices on the same mobile network are working

If the SIM is active but signal is weak, relocating the 4G module or adding an external antenna resolves the issue.

5

Reconfigure the dongle via the AlphaESS app

If power cycling did not restore connectivity, the dongle needs to be reconfigured with your current network credentials:

• Open the AlphaESS mobile app and go to device settings
• Select the communication module and re-enter the WiFi SSID and password
• For 4G modules, verify the APN settings match your SIM provider
• The dongle restarts and attempts to connect after saving

The app communicates with the dongle via Bluetooth — ensure Bluetooth is enabled on your phone and you are within 2 metres of the inverter. If the app cannot find the dongle, the dongle itself may have failed and need replacing.

If you are not comfortable reconfiguring the dongle, we can talk you through the process remotely or arrange an engineer visit.

About AlphaCloud monitoring on AlphaESS systems

AlphaCloud is AlphaESS's cloud monitoring platform. It provides real-time and historical data for solar generation, battery state of charge, grid import/export, and working mode status. The SMILE inverter sends this data via a communication dongle — either a WiFi stick that connects to your home router, or a 4G cellular module with its own SIM card. Both plug into the inverter's communication port.

The most common triggers for AlphaCloud going offline are router changes (new router means new WiFi credentials), ISP firmware updates (BT, Virgin, and Sky hubs sometimes reset WiFi settings), and loose dongles (the dongle gradually works loose from vibration or temperature cycling). Less common but still seen: 4G SIM expiry, communication dongle hardware failure, and AlphaESS server maintenance. In all cases, the solar system itself continues working — the outage is monitoring-only.

Back to

Return to the AlphaESS brand hub to explore other common faults and services.

AlphaESS support hub
FAQ

AlphaCloud connectivity — common questions

AlphaCloud goes offline when the communication dongle on the SMILE inverter loses its internet connection. Common causes: loose dongle, WiFi password change, router replacement, or deactivated 4G SIM. Your solar system continues working normally — only remote monitoring is affected. A power cycle usually restores the connection.
Open the AlphaESS app, go to device settings, select the WiFi module, and re-enter your new network name and password. The dongle needs 2.4GHz WiFi — it cannot connect to 5GHz networks. After saving, the dongle restarts and data should appear in AlphaCloud within a few minutes.
Solid green or blue means connected and transmitting. Flashing means attempting to connect — normal briefly at startup but should not persist. LED off means no power — the dongle may be loose or have failed. Reseat it firmly before assuming a hardware fault.
Yes. AlphaCloud is monitoring and remote management only. When the dongle loses its connection, you lose real-time data and remote working mode changes — but the SMILE inverter and battery continue operating normally. Generation, charging, and export all continue according to the last configured settings.
Most connectivity issues are resolved remotely. Our free remote diagnostic covers the full communication audit — dongle status, WiFi or 4G configuration, app reconfiguration, and portal verification. If the dongle needs replacing, we provide the exact part reference and can arrange supply.
Book

AlphaCloud offline and can't fix it?

Tell us what the dongle LED is showing and what you've tried. We'll diagnose the communication fault and restore your AlphaCloud access — usually same day.

  • Free remote diagnostic · no fix, no fee
  • WiFi and 4G dongle configuration
  • Replacement dongle supply if needed

By submitting you agree to be contacted about your diagnostic request. We don't share your data with 3rd parties.

Call 07944 877 329 Book free diagnostic