Ethernet connection deactivates after suspend (possible driver failure)

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Hi, I was using F27 with KDE, but when the EOL date approached, I upgraded to F29. Since about that time sometimes after the PC comes back after suspend, I see a message "Connection 'enp4s0f1' deactivated." and then it disappers from the list. I can still use WiFi. After a restart, it appears and works again. So I thought it was a driver problem and decided to find the driver for the eth adapter and restart it. I did

[root@localhost freeride]# lspci
...
04:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 14)

to find the driver coords; then

root@localhost freeride]# find /sys | grep drivers.*04:00
/sys/bus/pci/drivers/r8169/0000:04:00.1
/sys/bus/pci/drivers/rtsx_pci/0000:04:00.0

to find the driver(s) and then

[root@localhost freeride]# modprobe r8169

to restart the driver. However, nothing happens after that. The eth connection is still missing from the list. Any help?

Thanks in advance.