The Miserable State of Modems and Mobile Network Operators
Published on: 2025-07-15 08:55:26
Golioth recently received a number of customer reports regarding connectivity issues on a specific vendor’s cellular chipset series. We immediately contacted the vendor and began working towards reproducing and isolating the behavior. What ensued was a lengthy investigation that ultimately revealed some unexpected and highly undesirable behavior. This is a story of the complexities of cellular connectivity, the perils of closed ecosystems, and how to debug what you cannot see.
We previously posted on the Golioth forum with a description of this issue and potential workarounds.
To Live is to Be Connected
Before going into detail about the sad state of affairs that is the telecommunications industry, it is important to provide some context around why connectivity is so important for large fleets of devices. Sure, it can be frustrating when your phone or laptop is unable to access the internet. Whether it is because your internet service provider (ISP) is having an outage, there is a b
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