Network losing Internet every 10 days or so

[Sonic007]

I’m trying to work out why a friend of mine is losing his Internet connection every 10 days or so.

 

The setup is a little complicated as there is no quick way to the router from the office. It is setup like this:

 

1. Virgin Internet Router downstairs.

2. Old BT WiFi Access points dotted round the house, now used to help with wifi.

3. One of these BT wifi access points has a spare LAN Port on the back so this is used to give us a physical network point in the office to connect a Ubiquiti Edge router.

4. Edge router is setup with its own network

5. Windows Server with domain controller is plugged into Edge Router.

6. Network Switch is also plugged into edge router.

7. Workstations are plugged into switch.

 

Long winded but it works.

 

Problem is every 10 days or so (no set days or time) the Internet will stop working on the workstations and server. Access to file shares continues to work fine.

I end up having to shut everything down and rebooting everything one by one in the order above. Except the Virgin router. That’s fine.

 

It’s then stable for days and then internet stops.

 

Any ideas?

 

Thankyou.

[3s-gtech]

Conflicting gateways between DHCP servers?

[Sonic007]

Thanks. Will check this next week and make sure they are the same. Strange that it works for a while though.

[3s-gtech]

If DHCP refresh intervals are set it may drop off at that point. Pure conjecture because these sort of faults are often so hard to predict, but DNS and DHCP are the first avenues to check.