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10251

Event 10251 — Communication status to network switch or DHCP server changed

SMA · Sunny Boy Inverters

What does 10251 mean?

The inverter's communication status with your network switch or router (DHCP server) has changed. An additional error message might be displayed.

Common Causes

  • Network instability or brief disconnection
  • Reboot of network equipment
  • Cable or port issues

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check for any additional error messages displayed with this event.

  2. 2

    Verify that your network switch or DHCP server (router) is powered on and operating correctly.

  3. 3

    Inspect the network cable connections for firmness and damage.

  4. 4

    If the issue persists, restart your network equipment and the inverter.

Browse all codes in this manual (70)
Verified technical data. Last updated: April 2026

Related Faults

!PV-Overvoltage!!PV-Overvoltage! !DISCONNECT DC! — Overvoltage at DC input10252Event 10252 — Communication disrupted10253Event 10253 — Connection speed changed to 10 Mbit
Source: SMA Sunny Boy Inverters
Open Manual (Page 75)Search more codes in this manual