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Juicebox 40 not working

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My wifi thermostats and wifi lights work but my Smart EVSE no longer connects to Juicebox server after switching to T-Mobile.  Below are the list of Ports & Protocols Tech Support sent me.  There are almost nothing I can configure on the 5G Internet Gateway, so not sure if there is a fix/workaround.  I may have to cancel my T-Mobile 5G Internet.

 

 

I have the Sagemcom Fast 5688W Gateway.

https://www.t-mobile.com/content/digx/tmobile/us/en/support/home-internet/sagemcom-gateway.html

 

BTW, seems Tech Support does not want to be contacted online.

 

 

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Best answer by iTinkeralot 5 December 2022, 20:12

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iTinkeralot
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That link and how the page renders seems to be a bit off. This works as one might expect:

https://www.t-mobile.com/support/home-internet.html

At the very bottom of the marketing pages is the dark section and if you get under the section to the right, More than wireless > Home Internet and then hit “Support” from the bar at the top then you get to the Internet support page. I know it is a convoluted way to get there as the “Support” link from the marketing or account side does not offer a fork to where you might want to go.

iTinkeralot
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I would guess the 443 will work but UDP port 8042 is probably blocked. Port 443 is secure HTTP and that probably is not the problem. With the T-Mobile 464XLAT solution port forwarding is a problem. That might be a show stopper for what you need. T-Mobile support can probably confirm but you might have to get up a level or two to get a proper answer.

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I am talking with Tech Support and the guy was recommending I switch to Small Business Internet.  It would be the same price, but comes with a different box that gives me more options for configuration.  The price is the same $50/mo but just not sure about discount to $30 with Magenta Max.

 

https://www.t-mobile.com/business/solutions/business-internet-services/small-business-internet

 

Update: Nope, it’s not available on Small Business either.  MAYBE in the future… Well, guess I’ll be switching back to Cox.

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Just read this on reddit.  https://www.reddit.com/r/tmobile/comments/p2u2n4/does_tmobile_hotspot_block_udp_somehow/

 

So I guess TMO used to allow UDP through Hotspot as I’ve tried connecting to phone hotspot (tried with phone on 5G and also phone on LTE) and neither worked.

 

More comlaints on Reddit of UDP headaches.

https://www.reddit.com/r/tmobile/comments/yfyaup/ipv4_ipv6v4_udp_and_failing_applications_on_5g/

 

https://www.reddit.com/r/tmobile/comments/qjdv66/if_tmobile_doesnt_want_you_to_use_hotspot_over_5g/

 

https://www.reddit.com/r/tmobile/comments/olm2cm/anyone_having_issues_with_tmobile_blocking_udp/

iTinkeralot
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They may use the Nokia for the small business users. Still the small print seems to indicate they use data prioritization on those which might be a  hit. Well, the 5G TMO home internet solution does not work for ALL users. My options were/are this, Starlink or HughesNet. T-Mobile won hands down. Lower cost and lower latency. It was a win for us as it has been pretty great. over 10X what we had in CA for bandwidth, more stable and less expensive. Having the n41 punching down 200-300 MBs is pretty nice to have. 

iTinkeralot
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Yes, the port blocking can be a big issue for some applications and services. The T-Mobile solution with the 464XLAT and IPv6 use does present limitations. If all services were on IPv6 it would probably not be a problem and the internet would probably handle the traffic loads better. All the traffic going from IPv4 to IPv6 and back to IPv4 does take overhead in processing packet loads so a pure native IPv6 environment will some day rule. Not today.

iTinkeralot
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Reddit is a good resource for the conversations that help expose the various issues that are there with the solution. No solution is perfect. The more demands we have the harder it is to get it all to work.

iTinkeralot
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From the research I  have done it appears they are using IPv6 for most mobile services. It seems to be more common for mobile carriers to use IPv6 due to the number of handsets and the need for IP addressing for data traffic. More and more internet connected devices are being connected by more people so it is driving the use of IPv6 much more. Well, the cost of going IPv6 vs buying limited IPv4 addresses is significant. The 128 bit IPv6 address even with a 64 bit prefix is significant. In our lifetime we will not see the IPv6 space exhausted. There are addresses to waste given the structure of it. The old paradigm of IPv4 subnets is rather pointless in the IPv6 model. More work for little to almost no return. 

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Just confirmed this is a T-Mobile APN specific issue.  I tried Hotspot off a GoogleFi phone (Google Fi uses T-Mobile and US Mobile but has their own APN) and it worked!

iTinkeralot
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Have you tried resetting the APN on your phone? Maybe it would improve the phone data. More than likely it is T-Mobile just blocking the UDP ports. 

iTinkeralot
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After looking at some information regarding GoogleFi that makes some sense to me. If you consider the cost comparison of GoogleFi and T-Mobile and how each bills for data I think it becomes a bit more clear. T-Mobile is less expensive for the data than GoogleFi and so preventing some services is a way they regulate that data use. With GoogleFi you are paying for each 10Gig of data over the base plan so sure they are happy to allow more liberty as it is an option you have bought into. It is not an obvious nor transparent difference out of the gate. So, I would say it might be more of a conscious decision from the GoogleFi marketing as it is easier for the user to spend more money. So, I still believe the port blocking that T-Mobile does with the home internet solution is tied back to revenue and Capex spending. In the end return on the investment is a major driving factor and well probably number 1.

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Well, I found this page with instructions on setting up an IPv4 only APN.  I would have to turn off wifi on the phone (otherwise it would send the Juicebox data through the Home Internet which goes to the IPv6 APN) then enable hotspot and let Juicenet connect.

 

https://www.myopenrouter.com/article/vpn-connections-not-working-t-mobile-heres-how-fix

 

Here's the settings you will need to set:

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Just confirmed this is an APN IPv6 issue.  On my phone, I made a new APN replicating the original APN but set it to IPv4 (APN protocol: IPv4 and APN roaming protocol: IPv4).  Juicebox would connect via this hotspot connection but the phone itself would not have working data.  I posted the info but it’s under moderator review.

 

Another post on GlobalConnect VPNs mention something about dropping MTU to 1300.  I will see if there is a way for me to test that.

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Fixed!

TMO sent me a CPO KVD21 Internet Gateway to replace the original NEW Sagecom FAST 4477W Internet Gateway.  I guess it was an Internet Gateway issue.

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