[arm-allstar] HamVoIP on T-Mobile home service

[Greg Stahlman]

Because 90% of the CSR calls are something simple like a power cycle or
cable connections, they , nor anyone else's CSR will have a clue.  The thing
to do is ask for a "specialist".  They have people they can transfer you to
that are WAY more helpful.  If you call, just tell them you have checked all
connections and have problems connecting to specific IP addresses and you
want to talk to a specialist.  The ones I have spoken to are VERY good!
Wprth the wait usually.  

-----Original Message-----
From: ARM-allstar [mailto:arm-allstar-bounces at hamvoip.org] On Behalf Of
"Patrick Perdue via ARM-allstar"
Sent: Sunday, October 16, 2022 6:24 PM
To: Don Backstrom - AA7AU via ARM-allstar <arm-allstar at hamvoip.org>
Cc: Patrick Perdue <borrisinabox at gmail.com>
Subject: [arm-allstar] HamVoIP on T-Mobile home service

Greetings:

Today, I was helping someone who is using T-Mobile's 5G home internet
service with a clear node. Everything was working fine until just a few days
ago, but then they were suddenly unable to connect to most nodes. A few
worked here and there, but mostly not. Everything was auto-congesting. Any
DNS query, regardless of what server was used, took almost exactly 5
seconds. Interestingly, the clear node seems to have
1.1.1.1 set up as the default resolver. I tried quad 9, a couple of root
nameservers, and 127.0.0.1. None of that made any difference.

No ICMP, so couldn't ping out, either. I tried switching from DNS to flat
file lookup, but that didn't help. I eventually solved the problem by
routing his connection through a Wireguard VPN. They have the same problem
when using their phone as a hotspot.

I was doing all this remotely, so I have no idea about what hardware is
being used as the gateway.

Just wondering if anyone else has seen this specifically with T-Mobile. 
Naturally, their CSR's don't have a clue.


73

N2DYI

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