Bandwidth or Netwwork Issue??

[SteffK]

We have real problems here with bandwidth (Not sure if this is the right forum).

Our internal connection and connection between our 3 sites is fine, but when the users from a specific location try to connect to the internet they get really slow connection, or cannot connect at all.

Our set up is ADSL with a 6Mb down 512Kb up.

The following is what I have tried -
Close all Desktops - Still runs like a Dog!
Disconnect all Network Connections to the Router/Firewall (Juniper) and use a clean Laptop to try to surf - Still runs like a Dog!
Turned off all VPN connections to the Juniper - Still runs like a Dog!

Have spoken to our ISP (Enta.net) they say there is no problem, BT (who own the line) say there is no problem - an engineer is coming out today to look.

If any one has any type of idea please can you help

 

[brianinms]

How many users do you have sharing the connection.

 

[SteffK]

Hi brianinms,

there are 10 users using this line, but all users were shut down on testing so they were not the issue

 

[SteffK]

Issue resolved - DNS forwarders set to wrong ISP

 

[Crowtalks]

I assume the Juniper is your device. What happens when you connect directly to your ISP's modem and try to surf?

 

[Crowtalks]

How did you figure out it was a DNS issue?

 

[SteffK]

Hi Crow,

We basically had gone through everything else, we knew we had a problem - so we started looking at the DNS and where it was pointing.

Our DNS on our Server was pointing at another ISP's DNA Servers instead of our own.