Ok so recently we have installed two new Procurve 1920-24G poe switches to our companies 2nd floor. The first switch was connected directly to an empty slot on a Checkpoint Firewall and and the 2nd was connected to the 1st switch . On the first day everything was working fine , just plug and play no problem . 2nd day we come in the office there is no network at all. The switch was not regignising the connection from the checkpoint firewall and therefore there was no network. When we connected a pc to the cable that was coming from Checkpoint it connected fine but the switch wouldnt . We tested several cables , ports on the switch , we tested going via another managed switch to the procurve switch but nothing. The only thing that wokred was placing a dummy switch in betweek checkpoint and 1920-24G . This is the only was the switch can connect to our lan . Maybe it is something that has to do with the speed ? Downing the speed from Gigabit fot 100mbit fixes the issue? But why is that i dont get it . Additionally after approximately 3 weeks of working with the dummy switch as intermediate the switch crashes on a non working day (ver low network usage ) .and has to be restarted twice for it to work . could this just be a faulty switch issue or there something else here ?
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