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re: Trouble with Cisco switch
Posted on 9/22/16 at 9:32 am to triggs85
Posted on 9/22/16 at 9:32 am to triggs85
quote:
Trouble with Cisco switch
When it fails there is No internet access nor network access...however If we use a secondary public dns (8.8.8.8) then we regain internet access... no seperate vlans... the unmanaged switches are on seperate homeruns.... it happened again today , however this time only one of the unmanaged switches went down... also I've noticed that one computer on the side that went down is connected but the connection is so slow to connect that it's unusable.
Okay so it sounds like when you lose connectivity, it's not to the internet. If you can change your DNS to 8.8.8.8 and surf the internet, then your DNS requests are failing, not your internet connection. That points to more of a server issue, imo.
Have you dug through switch logs or server logs to find errors?
What is doing DHCP for you? The router or the server?
This post was edited on 9/22/16 at 9:35 am
Posted on 9/22/16 at 9:42 am to Hulkklogan
What happens when you set a static ip address and dns info on a client connected to the unmanaged switch? Can they communicate to the server?
Posted on 9/22/16 at 10:07 am to Hulkklogan
quote:
What is doing DHCP for you? The router or the server?
That's my thought process. i think they're losing contact with the DHCP server. Whatever is doing that needs to push out 8.8.8.8 or 4.2.2.2 as a secondary DNS.
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