Why does Cursor keep opening connections on 3001?

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I’m running a development NextJS server locally on port 3001. I’ve noticed a few times the server will stop working because Cursor is opening new connections on port 3001. The most recent time I noticed this I was using a background agent. Does anyone know why it’s doing this and if I can change the settings to prevent it?

sudo lsof -i :3001
COMMAND     PID       USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
firefox   95655 trentwalls   79u  IPv4 0xfe60af71aea9df06      0t0  TCP localhost:51916->localhost:redwood-broker (ESTABLISHED)
firefox   95655 trentwalls   91u  IPv4 0x449a5b7caf544e5f      0t0  TCP localhost:51775->localhost:redwood-broker (ESTABLISHED)
firefox   95655 trentwalls  177u  IPv4 0xed23ae0eb23f4bed      0t0  TCP localhost:51968->localhost:redwood-broker (ESTABLISHED)
Cursor    97060 trentwalls   41u  IPv4 0xd962d74a4da8bae7      0t0  TCP localhost:redwood-broker (LISTEN)
Cursor    97060 trentwalls   45u  IPv4 0xe04922d06be09d4b      0t0  TCP localhost:redwood-broker->localhost:51775 (ESTABLISHED)
Cursor    97060 trentwalls   46u  IPv4 0x34e720a03365bc91      0t0  TCP localhost:redwood-broker->localhost:51898 (CLOSE_WAIT)
Cursor    97060 trentwalls   47u  IPv4 0x1e0f6e1e126fe62b      0t0  TCP localhost:redwood-broker->localhost:51916 (ESTABLISHED)
Cursor    97060 trentwalls   48u  IPv4 0x11f4450d4fe4814d      0t0  TCP localhost:redwood-broker->localhost:51968 (ESTABLISHED)
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