Unexplained slow speeds

[JTTCM]

Hey All,

So, we are with RM, we have 100Mbps leased line. At this school, mot mornings there is a real lack of speed. It looks intitally like a DNS issue but isn't. - Speaking with RM, they are saying that the bandwidth utilisation is 100%. They also say that the service utilising this bandwidth is "Google Update".

 

The odd thing is that it happens early morning and settles at lunch time. -

 

We cannot see anything on this network that even remotely looks like this anywhere on the network.

 

Any advice would be brilliant, this school is really suffering!

 

PS - We have just had all except the core switches changed from Cisco to Ubiquiti. Could be something or nothing.

[CHiLL]

Is there any way you can specify via Group Policy or your MDM to update at specific times?

[JTTCM]

Possibly, but we can't even work out what this service is or where to locate it. We don't use an MDM, so that's out. The suddenness of it leads us to think this is something not related to the server in that way if that makes sense?

[SchoolsBroadband]

can you look at any live bandwidth stats? e.g. RM log onto your router and see what IP's are using up your bandwidth? Alternatively can you do this from your layer 3 switch (assuming you have one)?

 

Dave

[CHiLL]

If you use GPO to manage Chrome, you could take a look at the GPO setting: Computer Configuration > Administrative Templates > Google > Google Update > Preferences > Time period in each day to suppress auto-update check. If you enable that policy and set a start time of 9am and duration of 6 hours, that'll prevent clients from downloading Chrome updates during the core school hours.