Servers cannot ping on internel network

Ian Kirkpatrick 1 Reputation point
2022-10-04T11:37:45+00:00

Not so much as what is the resolution but I need to understand why the fix worked !

Have two servers (Domain Controller and Application server) came in this morning and they cannot ping each other on the network and the workstations cannot ping them.

Rebooted the servers and the same was in place - they had internet (was rebooting remotely).

Both are on static IP Addresses and I could not ping direct to the IP Address or the name (Name was resolving to the IP Address just no reply)

Resolution was to reboot the Network Router (neither server is plugged directly into this)

I am struggling to understand why this would solve the issue and what the issue potentially related to.

Any insights would be appreciated.

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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Windows DHCP
Windows DHCP
Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.DHCP: Dynamic Host Configuration Protocol (DHCP). A communications protocol that lets network administrators manage centrally and automate the assignment of Internet Protocol (IP) addresses in an organization's network.
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  1. JimmySalian-2011 41,926 Reputation points
    2022-10-04T11:49:06.643+00:00

    Hi,

    Not sure how the network is setup and connected, did you managed to capture a network trace ? It could have given a network flow on the packets that were causing the failure.

    I can only think of ARP Broadcast and flooded the network that can cause congestion or packets to drop, it can be any device could be wifi, workstations or servers or some sort of application causing a scanning on the network.

    It is hard to detect without any trace of Network logs. But I think it could be ARP broadcast.

    Hope this helps.

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