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Are you saying that you now have a problem when using DHCP without a problem when setting the IP address statically?

I assume it is a routing issue since the default gateway is not an interface-specific setting, but I can't imagine what is going on. If you could write down the...

> eth4 Link encap:Ethernet HWaddr 24:5E:BE:XX:XX:XX > inet addr:192.168.0.42 Bcast:192.168.0.255 Mask:255.255.255.0 > inet6 addr: fe80::265e:beff:fe42:e18b/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Please try Enabling Jumbo-frame. Jumbo-frame may increase...

> I'd prefer not to enable JF, as I'd need to enable it on all my network devices. Indeed, switch to Jumbo-Frame is painful work when there are many devices....

Probably this difference is caused by the reason in the past comment and some other conditions. (Eg, write buffer size of the ethernet adaptor, overheads of creating a USB transaction,...

Could you paste the output of `dmesg`?

Just run `sudo dmesg` in your terminal. I believe you have already set up the terminal in the installation steps.

The latest driver 2.15.0-5 has improved start-up handling, so I expect this issue is fixed at the version. Since I haven't heard back from you, I'm closing this issue, but...

@boginder , could you paste the output of `dmesg`?

Thank you for the detailed explanation. I am now suspecting [USB LPM issue](https://bugzilla.redhat.com/show_bug.cgi?id=1713657), but I could not find a way to change kernel parameters in Synology environment... So could you...