Network

Cause of unstable network in office

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Cause of unstable network in office

  • Sometimes internet connection is slow.
  • Network is not stable.

This kind of network issue sometimes occurs in office.
Today I introduce one cause of unstable network.


Common cause of network issue

Common causes of network issue are below.

  • Network device fault
  • Huge traffic
  • Wrong settings in router or PC
  • Internet provider issue

In office, "Network device fault" and "Huge traffic" are common.
Especially "Huge traffic" occurs easily by increasing employees.


Cause of office network issue

Compare to home, a lot of people are in office.
So there is larger network traffic there.

We may remember Windows Update.
There are a lot of PC in office.
If they tried to download update data, it cause huge traffic and network issue.

In Japan, monthly Windows update comes on Wednesday.
So if network issue happens on Wednesday, you can doubt that is caused by Windows update.

セキュリティ更新プログラムは通常、米国日付の毎月第 2 火曜日に公開します。日本では、時差の関係上、毎月第 2 火曜日の翌日 (第 2 水曜または第 3 水曜) の公開となります。ただし、悪用状況に基づき、危険性が高いと判断した場合は下記のリリース スケジュールに従わず例外措置をとり、セキュリティ更新プログラムを可能な限り迅速に公開します。
セキュリティ更新プログラム リリース スケジュール (2019 年) – 日本のセキュリティチーム


How to avoid issue

There are no way to control download Windows update.
But WSUS server can decrease duplicate download.


What is WSUS server ?

WSUS server is a server which download Windows update.
It downloads Windows update and deliver it to others. So other PC doesn't need to download it from internet.

Windows Server Update Services (WSUS), previously known as Software Update Services (SUS), is a computer program developed by Microsoft Corporation that enables administrators to manage the distribution of updates and hotfixes released for Microsoft products to computers in a corporate environment. WSUS downloads these updates from the Microsoft Update website and then distributes them to computers on a network. WSUS is an integral component of Windows Server.
Windows Server Update Services - Wikipedia


How about active time settings ?

Windows has active time settings.
But it manages schedule of restart.
So it does not make sense in this case.


Finally

  • If network is undtable on Wednesday, its reason would be Windows update.
  • In order to decrease traffic of Windows update, you can use WSUS server.



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