How to share same patch panel with two different ISP

I have two tenants currently sharing the same patch panel. They were sharing same ISP, until yesterday. Now they have the same ISP, but two different ISP communications box (ADTRAN 600, for voice and data). I want to keep both tenants on the same patch panel, but split them to their own switch and ADTRAN. IT would have been easy if there were two patch panels for each office. I noticed that both ADTRAN have the same local ip scheme of 172.17.2.0 - 172.17.2.254, they even have the same exclusions. The same company is providing service, so I guess they were unaware that both clients share the same patch panel, hence they were both issued the IPS's default scheme. There is am SBS server in DHCP and DNS mode, I want to keep it like that. I think I need to have the ISP change the local ip scheme on one of the ADTRAN, because even with each client on his own switch (sharing patch panel of course), I am unable to get internet access on one client. What options do I have? Can having the ISP change the scheme on the ADTRAN solve the issue?
current-network.doc
what-I-want.doc
xzay1967Asked:
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xzay1967Connect With a Mentor Author Commented:
Thanks guys figured the issue myself. I called the ISP and has them change the scope of the LAN IP in the ADTRAN, then reboot the ADTRAN, now all is well.
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KutyiCommented:
just add the second switch.
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