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CE-105799-1

PlayStation CE-105799-1 on PS5: unable to connect to the server

Verified with sources1 sourceReviewed Oct 3, 2026
Technician coming? See what they must show you
PlayStation 5 console with DualSense controller
Soberian (this retouched file) Osh33m (original photograph)CC BY-SA 4.0Image source

Risk level

Medium

Proceed carefully and stop if the check is unclear.

Urgency

Medium

Quick answer

The PS5 could not connect to the PlayStation server. Check the PlayStation status page, then restart the console, use a cable and restart the router and modem after at least 5 minutes off.

Safety first

Stop and check this first

  • Change one router setting at a time and note it. Opening ports or changing DNS is Sony's suggestion to improve the connection, not a fix for a server outage.

Safe checks you can perform

  • PlayStation status page
  • Restart and connect by cable
  • Router and modem off for at least 5 minutes
  • Router firmware, ports, IP address and DNS

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Internet service provider

What a technician must be able to justify

Technician visit

These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.

These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.

  1. Internet service provider

    What they doThe provider checks port opening and router settings for your connection, which Sony refers you to them for.

    They must show youwhich ports are open and the router settings in use.

    In writingwhat was changed on the router or the line and when.

Before accepting a part or repair

Nothing has been shown yet. Do not accept a part swap based on the code alone.

Follow these steps

Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.

  1. PlayStation status page

    No special tools

    Who:
    you.
    How:
    open status.playstation.com and check for any server failure or maintenance.
    Result that matters:
    whether PlayStation reports a problem with the service you were using.
    If there is a failure or maintenance:
    wait for it to end; your console and network are not the cause.
    If everything is up:
    go on to the console and network checks.
    Evidence to keep:
    screenshot of the status page with date and time.

    Evidence: PS5 error code CE-105799-1 (PlayStation Support)

  2. Restart and connect by cable

    No special tools

    Who:
    you.
    How:
    restart the PS5 and connect it to the router with a network cable as much as possible, then configure the network settings again. On wireless, bring the console closer to the router or remove anything between them.
    Result that matters:
    whether the console connects without the code.
    If it connects on cable or after moving it:
    the wireless link or old network settings were the problem.
    If it still fails:
    restart the router and modem.
    Evidence to keep:
    connection type and placement used for each attempt.

    Evidence: PS5 error code CE-105799-1 (PlayStation Support)

  3. Router and modem off for at least 5 minutes

    No special tools

    Who:
    you.
    How:
    turn off the router and modem, wait at least 5 minutes and turn them back on.
    Result that matters:
    whether the PS5 connects once the network equipment is back.
    If it connects:
    it was a temporary state of the network equipment.
    If it fails:
    check the router firmware and settings.
    Evidence to keep:
    time of the restart and the result.

    Evidence: PS5 error code CE-105799-1 (PlayStation Support)

  4. Router firmware, ports, IP address and DNS

    No special tools

    Who:
    you if you manage your router, otherwise your internet provider.
    How:
    update the router firmware (the router vendor explains how). If possible, open the ports Sony lists: TCP 80, 443, 3478, 3479, 3480 and UDP 3478, 3479 and 49152 to 65535. In the PS5 network settings, set a static IP address manually, or temporarily change DNS to a free public DNS.
    Result that matters:
    whether the console connects after each change.
    If one of these changes fixes it:
    note which one so you can keep it.
    If nothing changes:
    Sony says the line is likely temporarily busy; leave it for a while and try again later.
    Evidence to keep:
    the settings you changed, with before and after values.

    Router firmware and port changes affect every device at home. If you do not manage the router, ask your internet provider, as Sony suggests.

    Evidence: PS5 error code CE-105799-1 (PlayStation Support)

Still not solved

If the error persists, stop here. See what the technician must do and show you.

Where this code applies

A code is meaningful only inside the right product and version context.

Primary scope

System
Gaming and consoles
Brand
PlayStation
Product type
PlayStation 5

Known code variants

  • error CE-105799-1 PlayStation 5
  • PlayStation 5 CE-105799-1
  • PlayStation 5 error code CE-105799-1
  • PlayStation CE-105799-1
  • PlayStation error CE-105799-1
  • PS5 CE-105799-1
  • PS5 error CE-105799-1
  • Unable to connect to the server CE-105799-1

What it means

Sony shows CE-105799-1 on PS5 when the console is unable to connect to the server while connecting to PlayStation. The steps cover the service (status page), the console and its connection (restart, cable, network settings, placement), the network equipment (router and modem off, firmware) and the router setup (ports, static IP, DNS). If none of that helps, Sony says the line is likely busy for a while. The code does not say which link failed and does not point at a console part.

Warnings and stop conditions

  • Loweditorial warning

    Change one router setting at a time and note it. Opening ports or changing DNS is Sony's suggestion to improve the connection, not a fix for a server outage.

    Evidence: PS5 error code CE-105799-1 (PlayStation Support)

Symptoms and causes

Probable causes · in order

  • Server failure or maintenancePossible

    Confirmed on the PlayStation status page. While it shows a problem, nothing at home will fix the connection.

    Evidence: PS5 error code CE-105799-1 (PlayStation Support)

  • Weak wireless link or old network settingsPossible

    Points here if the error stops on a cable, after moving the console closer to the router or after setting the network up again.

    Evidence: PS5 error code CE-105799-1 (PlayStation Support)

  • Router or modem state or settingsPossible

    Points here if a router and modem restart, a firmware update or the port, IP and DNS changes Sony lists fix it.

    Evidence: PS5 error code CE-105799-1 (PlayStation Support)

  • Line temporarily busyPossible

    Sony's explanation when none of the steps help. The connection works again later without changes.

    Evidence: PS5 error code CE-105799-1 (PlayStation Support)

Virtual technician

Does CE-105799-1 still appear after these checks?

Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.

Start diagnosis

Sources and technical references

  1. 1

    PS5 error code CE-105799-1 (PlayStation Support)

    Sony Interactive Entertainment (playstation.com/en-us) · 2026 · official_doc

Sources: PS5 error code CE-105799-1 (PlayStation Support)reviewed 2026-10-03 · verified

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