Hello there, I have a Goodwe GW5048-ESA model with 2 batteries and I'm not entirely happy with my purchase after a couple of years but will have to suffice for now.

The issue I have is that whenever they decide to push a firmware update to my inverter, the system reboots itself, which leaves me without power for a few minutes until it all comes back.

I have purchased a couple of UPS to connect some of my stuff, but I'd like to do something beyond that.

It is annoying AF because they don't really let me know when they're doing it, and granted it's only happened 3 or 4 times, for me it is even more concerning knowing they can basically do whatever the f*ck they want whenever they want. And good luck reaching out for tech support, they care even less and their response rate is useless, probably they pay them crap, but that's not my problem as a customer.

Anyway, is there a way to prevent Goodwe's technicians from accessing/rebooting my inverter remotely?

Of course I'd still like to be able to read my stats, although I don't care much about SEMS portal since I've implemented my own solution:

I can think of probably adding some blockages for outgoing URLs to prevent the inverter from communicating with the outside, but how can I block them from getting inside?

Thoughts or ideas?

Thank you.

Kind regards.

Edited November 30, 20231 yr by gamosoft
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46 minutes ago, gamosoft said:

Hello there, I have a Goodwe GW5048-ESA model with 2 batteries and I'm not entirely happy with my purchase after a couple of years but will have to suffice for now.

The issue I have is that whenever they decide to push a firmware update to my inverter, the system reboots itself, which leaves me without power for a few minutes until it all comes back.

I have purchased a couple of UPS to connect some of my stuff, but I'd like to do something beyond that.

It is annoying AF because they don't really let me know when they're doing it, and granted it's only happened 3 or 4 times, for me it is even more concerning knowing they can basically do whatever the f*ck they want whenever they want. And good luck reaching out for tech support, they care even less and their response rate is useless, probably they pay them crap, but that's not my problem as a customer.

Anyway, is there a way to prevent 

 

Am I the only one seeing this post in black? 

@gamosoft

Edited November 30, 20231 yr by Scorp007

4 minutes ago, Scorp007 said:

Am I the only one seeing this msg in black? 

No, same here. Perhaps there is some auto hiding/filtering due to OP's choice of language.

if you highlight the text you can see the contents

Edited November 30, 20231 yr by VicB7

1 hour ago, gamosoft said:

Goodwe GW5048-ESA model

Ok, don't know that inverter, but.. if it gets internet access by way of WiFi in your home, give it a DHCP reserved address on whatever device is dishing out IP addresses and don't give it a gateway address... that's what I do with my local Tuya devices and they are perfectly happy and not generating any external traffic this way...

Darn, you guys are right @VicB7 @Scorp007, some weird f*ck up with my dark theme settings (I'm using dark reader browser extension). 🙃

I have edited the text now so hopefully looks fine.

Thanks for letting me know!

25 minutes ago, Kalahari Meerkat said:

Ok, don't know that inverter, but.. if it gets internet access by way of WiFi in your home, give it a DHCP reserved address on whatever device is dishing out IP addresses and don't give it a gateway address... that's what I do with my local Tuya devices and they are perfectly happy and not generating any external traffic this way...

That is a very good idea indeed, but do you know how I could prevent Goodwe people from messing up with my inverter remotely?

Are you sure it's Goodwe pushing firmware upgrades? I have a Goodwe and they CAN update it remotely, but don't unless I ask them.

Could it be some setting that is telling the inverter to check for new firmware? 

I have the same inverter, haven't had an update in years so I can't understand why you are getting frequent updates. Are you requesting these updates?  What version are you on now?

11 hours ago, gamosoft said:

That is a very good idea indeed, but do you know how I could prevent Goodwe people from messing up with my inverter remotely?

If it has no gateway, then it can't get to the internet and neither will the outside be able to talk to it, after all the Goodwe people are relying on the inverter connecting to their infrastructure and picking up a upgrade firmware etc. message...

The only other option would be to, by way of firewall entries, blocking the Goodwe from having internet access...

15 hours ago, Bobster. said:

Are you sure it's Goodwe pushing firmware upgrades? I have a Goodwe and they CAN update it remotely, but don't unless I ask them.

Could it be some setting that is telling the inverter to check for new firmware? 

In the 2 years I've had the inverter they have done this 3 times (that I can remember now). If there's a setting in the inverter to do that I don't know how to turn it off, do you?.

Also as I mentioned tech support is useless (at least in Spain, where I'm from) since they respond late and don't seem to care. I had another issue (actually 2 times) in summer, when it was too hot, the fans would kick off and start blowing making a lot of noise, and even when the ambient temperature would drop in the evening, they kept running constantly... for an entire week... and I couldn't reach support, so the only actual option was for me to shut down the inverter and turn it on again, and magically the fans stopped working. Apparently the software is not smart enough to stop the fans when the temperature has dropped, go figure...

My next inverter is definitely not going to be Goodwe.

Thank you.

4 hours ago, FixAMess said:

I have the same inverter, haven't had an update in years so I can't understand why you are getting frequent updates. Are you requesting these updates?  What version are you on now?

I have had this happen at least 3 times that I can remember in the last 2 years. My inverter's FW version is 2525H as reported by PVMaster.

I am not requesting anything, at least willingly... unless the inverter is actually constantly polling or whatever, but I don't know how to disable that behavior, other than putting a dummy DNS server as suggested by @Kalahari Meerkat...

21 minutes ago, gamosoft said:

dummy DNS server

I would not do this, do not give it a gateway or fix its IP address to a value which you then block on your firewall/internet gateway...

1 hour ago, Kalahari Meerkat said:

I would not do this, do not give it a gateway or fix its IP address to a value which you then block on your firewall/internet gateway...

Hmm, not sure I can set up a custom gateway in my DHCP server (Asus router). I can however set a custom DNS entry, and if I point it to a non-existent one it *should* do the same, shouldn't it?

1 minute ago, gamosoft said:

Hmm, not sure I can set up a custom gateway in my DHCP server (Asus router). I can however set a custom DNS entry, and if I point it to a non-existent one it *should* do the same, shouldn't it?

Not necessarily so, they could be doing DNS over https or using google (8.8.8.8 and 8.8.4.4) or some other publicly accessible DNS server, if you have limited control over DHCP, then the firewall route to prevent any and all internet access from the inverter would be the right thing...

4 minutes ago, Kalahari Meerkat said:

Not necessarily so, they could be doing DNS over https or using google (8.8.8.8 and 8.8.4.4) or some other publicly accessible DNS server, if you have limited control over DHCP, then the firewall route to prevent any and all internet access from the inverter would be the right thing...

thanks, I'll keep looking into it!