Juniper EX4300 repair and refurbishment.
Power circuitry repair, Virtual Chassis diagnostics, and port repair for Juniper EX4300 enterprise switches. No fix no fee.
EX4300 repair and refurbishment
The Juniper EX4300 is a high-performance managed Layer 2/Layer 3 enterprise switch available in 24-port and 48-port configurations with SFP+ and QSFP+ uplinks. The EX4300 serves enterprise campus distribution and datacenter access roles. We carry out component-level repair on EX4300 units.
Common EX4300 faults we fix
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Power circuitry faults causing intermittent operation or complete failure to power on
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Virtual Chassis interconnect faults causing stack member isolation
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SFP+ or QSFP+ port faults on uplink interfaces
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Boot faults caused by flash memory failure or power corruption on the boot circuit
How it works
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1
Send details
Share the switch model, fault symptoms, and any error LEDs or log output.
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2
Diagnostics
Bench diagnostics isolate the fault to board, component, or subsystem.
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3
Repair, Refurbish & Test
Component-level repair with port validation and management system testing before return.
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4
Return to service
Confirmed test results and return logistics for your switch.
Why Electron Lab
- Engineer-led bench diagnostics
- Component-level repair and rework
- Tested Before Return
- Clear, fast quoting
EX4300 repair FAQs
Can you repair a Juniper EX4300 with power faults?
Yes. Power circuitry faults are the most common failure. We carry out component-level repair on the power circuitry.
My EX4300 has a dead SFP+ uplink — is this repairable?
Yes. SFP+ port failure is typically caused by the transceiver interface circuitry. We diagnose at board level and carry out the repair.