Realtek ethernet card not working on Linux

[ 0.184110] pci 0000:04:04.0: [10ec:8139] type 0 class 0x000200
[ 3.822258] 8139cp: 8139cp: 10/100 PCI Ethernet driver v1.3 (Mar 22, 2004)
[ 3.822281] 8139cp 0000:04:04.0: This (id 10ec:8139 rev 10) is not an 8139C+ compatible chip, use 8139too
[ 3.822574] 8139too: 8139too Fast Ethernet driver 0.9.28
[ 3.822625] 8139too 0000:04:04.0: Chip not responding, ignoring board
[ 3.822675] 8139too: probe of 0000:04:04.0 failed with error -5

On a Debian machine.

The solution was changing PCI slot , blowing away all the dust in the mobo PCI slot and on the pins of the PCI card, and gently inserting and removing it a couple of times.

After that it worked correctly.

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