LAN is slow
Posted on 2009-07-09
I have a building in work with 5 floors. Their are 2 switches per floor, so in total 10 switches and 1 router. Their is roughly 50-100 users on each floor so at least 250 people logged into the domain at midday.
Connection to the WAN over radio link is 4 MB. The users are getting slow connection speeds during the day ie download 18mb file from internet in 20 mins. In the evening when they have gone home i can login to a pc and get same 18 mb file in 2 mins. They are also getting slow response to exchange and file servers.
This week we got a cisco fibre switch and cabled each of the cisco switches into it to try and get rid of the bottleneck which we think is on the LAN because the WAN link is showing under utilised. We also created a vlan for each switch to seperate the users.
The problem is it hasnt fixed the problem and now we are baffled. So definately when the users come in during the day the connections get slower. We have remved all mini hubs fro the building.
Anyone seen this before or have any ideas?