So who owns interrupt 17? "cat /proc/interrupts"
Out of interest make and model of the main-board...

I don't have a 88E8053 with Linux OS - but do have an ASUS A8R32-MVP DELUXE, 2006 vintage running windows (installed on 11 May 2006) with one...

Looking at IRQs under System Information - Hardware Resources it's listed as IRQ 18
Going into Device Manager - Network Adapters - Marvell Yukon 88E8053 PCI-E Gigabit Ethernet Controller - IRQ 18 i.e. the same
So that's consistent...

Still currently find your IRQ differences odd to say the least...

Edit:
Sorry - forgot to comment on the versions, 4.4.0-112-generic is not a ClearOS kernel - so assume this is Ubuntu?

root@gate:~# modinfo sky2
filename: /lib/modules/4.4.0-112-generic/kernel/drivers/net/ethernet/marvell/sky2.ko

This leaves the other entry...

root@gate:~# modinfo -V sky2
kmod version 22
-XZ -ZLIB -EXPERIMENTAL

I assume this is also for Ubuntu as the ClearOS version is kmod version 20
Presumably you are using the sky2 driver as supplied by ClearOS?

root@gate:~# lspci -vvk | grep -A 16 Ethernet

02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8053 PCI-E Gigabit Ethernet Controller (rev 19)

        Subsystem: Gigabyte Technology Co., Ltd Marvell 88E8053 Gigabit Ethernet Controller (Gigabyte)

        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+

        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

        Latency: 0, Cache Line Size: 32 bytes

        Interrupt: pin A routed to IRQ 26

        Region 0: Memory at e1000000 (64-bit, non-prefetchable) [size=16K]

        Region 2: I/O ports at a000 [size=256]

        [virtual] Expansion ROM at e0000000 [disabled] [size=128K]

        Capabilities: [48] Power Management version 2

                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)

                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-

        Capabilities: [50] Vital Product Data

                Product Name: Marvell Yukon 88E8053 Gigabit Ethernet Controller

                Read-only fields:

                        [PN] Part number: Yukon 88E8053

                        [EC] Engineering changes: Rev. 1.9

                        [MN] Manufacture ID: 4d 61 72 76 65 6c 6c

                        [SN] Serial number: AbCdEfG4223BB

                        [CP] Extended capability: 01 10 cc 03

                        [RV] Reserved: checksum good, 9 byte(s) reserved

                Read/write fields:

                        [RW] Read-write area: 121 byte(s) free

                End

        Capabilities: [5c] MSI: Enable+ Count=1/2 Maskable- 64bit+

                Address: 00000000fee0200c  Data: 4142

        Capabilities: [e0] Express (v1) Legacy Endpoint, MSI 00

                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited

                        ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset-

                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-

root@gate:~# modinfo -V sky2

kmod version 22

-XZ -ZLIB -EXPERIMENTAL

root@gate:~# modinfo sky2

filename:       /lib/modules/4.4.0-112-generic/kernel/drivers/net/ethernet/marvell/sky2.ko

version:        1.30

license:        GPL

author:         Stephen Hemminger <shemminger@linux-foundation.org>

description:    Marvell Yukon 2 Gigabit Ethernet driver

srcversion:     0EF5B2AE87090D342305BD7

alias:          pci:v000011ABd00004382sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004381sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004380sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004370sv*sd*bc*sc*i*

alias:          pci:v000011ABd0000436Dsv*sd*bc*sc*i*

alias:          pci:v000011ABd0000436Csv*sd*bc*sc*i*

alias:          pci:v000011ABd0000436Bsv*sd*bc*sc*i*

alias:          pci:v000011ABd0000436Asv*sd*bc*sc*i*

alias:          pci:v000011ABd00004369sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004368sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004367sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004366sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004365sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004364sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004363sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004362sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004361sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004360sv*sd*bc*sc*i*

alias:          pci:v000011ABd0000435Asv*sd*bc*sc*i*

alias:          pci:v000011ABd00004357sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004356sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004355sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004354sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004353sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004352sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004351sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004350sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004347sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004346sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004345sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004344sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004343sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004342sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004341sv*sd*bc*sc*i*

alias:          pci:v000011ABd00004340sv*sd*bc*sc*i*

alias:          pci:v00001186d00004B03sv*sd*bc*sc*i*

alias:          pci:v00001186d00004B02sv*sd*bc*sc*i*

alias:          pci:v00001186d00004001sv*sd*bc*sc*i*

alias:          pci:v00001186d00004B00sv*sd*bc*sc*i*

alias:          pci:v00001148d00009E01sv*sd*bc*sc*i*

alias:          pci:v00001148d00009E00sv*sd*bc*sc*i*

alias:          pci:v00001148d00009000sv*sd*bc*sc*i*

depends:

intree:         Y

vermagic:       4.4.0-112-generic SMP mod_unload modversions

parm:           debugebug level (0=none,...,16=all) (int)

parm:           copybreak:Receive copy threshold (int)

parm:           disable_msiisable Message Signaled Interrupt (MSI) (int)

parm:           legacy_pme:Legacy power management (int)

Munko
That;s weird... the interrupt numbers do not match... checked my 3 ClearOS 7.4 systems - interrupts match exactly for every NIC...
You didn't indicate the version of the Ubuntu sky2 driver.... my ClearOS 7.4 shows 1.30
What's the output of "lspci -vvk | grep -A 16 Ethernet" (and thanks for using code tags)

root@gate:~# uname -a

Linux gate 4.4.0-112-generic #135-Ubuntu SMP Fri Jan 19 11:48:36 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

root@gate:~# cat /etc/issue

Ubuntu 16.04.3 LTS \n \l

root@gate:~# lspci -nn|grep -i eth

02:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8053 PCI-E Gigabit Ethernet Controller [11ab:4362] (rev 19)

root@gate:~# lspci -s 02:00.0 -vv

02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8053 PCI-E Gigabit Ethernet Controller (rev 19)

        Subsystem: Gigabyte Technology Co., Ltd Marvell 88E8053 Gigabit Ethernet Controller (Gigabyte)

        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+

        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

        Latency: 0, Cache Line Size: 32 bytes

        Interrupt: pin A routed to IRQ 26

        Region 0: Memory at e1000000 (64-bit, non-prefetchable) [size=16K]

        Region 2: I/O ports at a000 [size=256]

        [virtual] Expansion ROM at e0000000 [disabled] [size=128K]

        Capabilities: [48] Power Management version 2

                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)

                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-

        Capabilities: [50] Vital Product Data

                Product Name: Marvell Yukon 88E8053 Gigabit Ethernet Controller

                Read-only fields:

                        [PN] Part number: Yukon 88E8053

                        [EC] Engineering changes: Rev. 1.9

                        [MN] Manufacture ID: 4d 61 72 76 65 6c 6c

                        [SN] Serial number: AbCdEfG4223BB

                        [CP] Extended capability: 01 10 cc 03

                        [RV] Reserved: checksum good, 9 byte(s) reserved

                Read/write fields:

                        [RW] Read-write area: 121 byte(s) free

                End

        Capabilities: [5c] MSI: Enable+ Count=1/2 Maskable- 64bit+

                Address: 00000000fee0200c  Data: 4142

        Capabilities: [e0] Express (v1) Legacy Endpoint, MSI 00

                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited

                        ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset-

                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-

                        RlxdOrd- ExtTag- PhantFunc- AuxPwr+ NoSnoop-

                        MaxPayload 128 bytes, MaxReadReq 512 bytes

                DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-

                LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s, Exit Latency L0s <256ns, L1 unlimited

                        ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-

                LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- CommClk-

                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-

                LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-

        Capabilities: [100 v1] Advanced Error Reporting

                UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-

                UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-

                UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-

                CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-

                CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-

                AERCap: First Error Pointer: 1f, GenCap- CGenEn- ChkCap- ChkEn-

        Kernel driver in use: sky2

        Kernel modules: sky2

root@gate:~# ifconfig

enp2s0    Link encap:Ethernet  HWaddr 00:16:e6:42:23:bb

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:751693 errors:0 dropped:1040 overruns:0 frame:0

          TX packets:427443 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:793224022 (793.2 MB)  TX bytes:412441441 (412.4 MB)

          Interrupt:17



enp2s0:0  Link encap:Ethernet  HWaddr 00:16:e6:42:23:bb

          inet addr:10.2.33.3  Bcast:10.2.33.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          Interrupt:17



enp2s0:1  Link encap:Ethernet  HWaddr 00:16:e6:42:23:bb

          inet addr:10.3.0.254  Bcast:10.3.0.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          Interrupt:17



enp2s0:2  Link encap:Ethernet  HWaddr 00:16:e6:42:23:bb

          inet addr:192.168.2.253  Bcast:192.168.2.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          Interrupt:17



lo        Link encap:Локальная петля (Loopback)

          inet addr:127.0.0.1  Mask:255.0.0.0

          UP LOOPBACK RUNNING  MTU:65536  Metric:1

          RX packets:160 errors:0 dropped:0 overruns:0 frame:0

          TX packets:160 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1

          RX bytes:11840 (11.8 KB)  TX bytes:11840 (11.8 KB)



vlan3     Link encap:Ethernet  HWaddr 00:16:e6:42:24:bb

          inet addr:192.168.100.46  Bcast:192.168.100.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:285652 errors:0 dropped:0 overruns:0 frame:0

          TX packets:146525 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:372836527 (372.8 MB)  TX bytes:35897344 (35.8 MB)



vlan5     Link encap:Ethernet  HWaddr 00:16:e6:42:26:bb

          inet addr:192.168.102.45  Bcast:192.168.102.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:7630 errors:0 dropped:0 overruns:0 frame:0

          TX packets:19 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:429760 (429.7 KB)  TX bytes:1398 (1.3 KB)

All works in Ubuntu

Nick - the initial post by Munko is misleading... He does not actually bother to tell us what his problem is, or what steps he has taken to solve it.
I now ignore those types of posts until more information is forth-coming...

In his "ifconfig -a" he shows enp2s0 as having no traffic this leading us to reasonably believe that this is the Marvell NIC. We cannot assume anything else...
It shows the interrupt in use as "device interrupt 17"
However, in the output of lspci -s "02:00.0 -vv", for the Marvell NIC, we have
Interrupt: pin A routed to IRQ 26

So enp2s0 is not the Marvell NIC - or his really hardware is messed up running ClearOS... as they do not match.
I suspect it could be one of the other unused NICs. So we need to know if the Marvell,l in fact, does have a ifcfg-xxxx file... for starters...

"NM10/ICH7" indicates this is a pretty old board...

It would also have been useful to provide the name and version of the Ubuntu Marvell NIC driver that works, and the driver version he is trying to use in ClearOS

If it is the kernel module then there is nothing more I can do apart from hunting down a later driver and compiling it if it exists. I don't want to do this as it will give you problems every time the kernel upgrades as there is no replacement kmod driver issued by ElRepo. It would be best if you do that, then you can recompile it on every kernel update.

The only other idea is to try one of the latest kernels from ElRepo, but this will stop the Bandwidth & QoS Module from working.

Stop counting me as a newbie and look for a problem in the settings of IP addresses, firewalls, etc.

The network card does not even respond to ARP requests with a static IP address.

problem in the kernel module, and I'm looking for a solution

p.s. in Kerio Connect the network card works, in Ubuntu 16.04 too without problems

What is the contents of /etc/sysconfig/network-scripts/ifcfg-enp2s0 and /etc/dnsmasq.d/dhcp.conf?

In web interface configured as LAN and DHCP client (assign static IP on DHCP server)
Adapter not assign IP address from DHCP server

If set static IP address, ping does not pass to computers on the local network

Other PC in LAN configured Domain Cntroller and DHCP server

I do not need a VT6105/VT6106S network card, forget about it, it's built into the motherboard

Configured, ping still does not go, no connection, cables changed, it's definitely not in them

VT6105 / VT6106S I do not need, I replace it with Marvel

What is wrong with the Marvel? Have you configured it in the web interface?

For the VT6105/VT6106S, use this driver but note this thread and watch it. When the kernel is changed it will affect you.