Strange fault in Chelsio S310E

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Jul 24, 2025
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I have a Chelsio T3 adapter that seems to have a fault where it suddenly cannot handle TCP anymore. This is after working normally for a number of years .

ICMP ping still works, UDP send/receive works (netcat), but TCP connections timeout.

It is model Chelsio CC2-S310E-CR 110-1107-30 with Cisco SFP+ transceiver.

Has this happened to anyone, are there any workarounds?

Thanks in advance.