NAS congestion control is the one fault class in this entire course that isn't actually a fault. Every other module has covered something breaking — a misconfiguration, a drifted clock,…[...]
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An N4 PFCP session failure is the fault class this course has been building toward without naming directly: every prior module assumed that once RRC connects and NAS registration succeeds,…[...]
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5G timing synchronization troubleshooting starts from an uncomfortable fact: the fault is almost never in the radio, and it almost always gets chased there first. A clock problem two hops…[...]
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NR-DC troubleshooting starts from an assumption Module 8 made and this module removes: that the master node is LTE and the secondary node is NR. In EN-DC that is always…[...]
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5G RedCap troubleshooting breaks a habit every other module in this course relies on: comparing the failing device against a working one on the same cell. With RedCap that comparison…[...]
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A 5G roaming failure is the one fault class in this course where half the network you are diagnosing does not belong to you. Every module so far has assumed…[...]
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An EN-DC SCG failure is the only fault in this course where everything works and the customer is still right to complain. The NR leg fails, the LTE anchor holds…[...]
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A 5G handover failure is the fault class that punishes aggregate thinking. A cell showing a 98 percent handover success rate can be losing every third session on one neighbor…[...]
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5G QoS troubleshooting is the last place anyone looks and frequently the place the answer is. A session can have an excellent radio link, a clean transport path, and still…[...]
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5G transport troubleshooting begins where Module 4 ended: the radio has been proven healthy, and throughput is still poor. This is the point at which most investigations stall, because the…[...]
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