Периодически пропадает связь с сервером на Debian

$ sudo ifconfig
[sudo] password for admin:
eth-database Link encap:Ethernet  HWaddr bc:ae:c5:ab:aa:2c
          inet addr:192.168.2.1  Bcast:192.168.0.0  Mask:255.255.255.0
          inet6 addr: fe80::beae:c5ff:feab:aa2c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:14544527 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7340339 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:20834143993 (19.4 GiB)  TX bytes:496849135 (473.8 MiB)
          Interrupt:26 Base address:0x2000

eth-internet Link encap:Ethernet  HWaddr 00:02:b3:15:59:b8
          inet addr:94.73.206.241  Bcast:94.73.206.243  Mask:255.255.255.252
          UP BROADCAST RUNNING MULTICAST  MTU:576  Metric:1
          RX packets:177979 errors:0 dropped:0 overruns:0 frame:0
          TX packets:215424 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:20033864 (19.1 MiB)  TX bytes:85653710 (81.6 MiB)

eth-local Link encap:Ethernet  HWaddr 00:50:22:e1:ae:99
          inet addr:192.168.1.212  Bcast:192.168.255.255  Mask:255.255.0.0
          inet6 addr: fe80::250:22ff:fee1:ae99/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:19585 errors:0 dropped:0 overruns:0 frame:0
          TX packets:13080 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1703410 (1.6 MiB)  TX bytes:1409550 (1.3 MiB)
          Interrupt:22 Base address:0x4c00
$ sudo route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
94.73.206.240   *               255.255.255.252 U     0      0        0 eth-internet
192.168.2.0     *               255.255.255.0   U     0      0        0 eth-database
192.168.0.0     *               255.255.0.0     U     0      0        0 eth-local
default         192.168.1.1.ipl 0.0.0.0         UG    0      0        0 eth-local
default         242.206.73.94.i 0.0.0.0         UG    0      0        0 eth-internet
default         192.168.2.2.ipl 0.0.0.0         UG    0      0        0 eth-database

tcp        0      0 94.73.206.241:8080      xxx.xxx.xxx.xx:63455    SYN_RECV    -
tcp        0      0 94.73.206.241:8080      xxx.xxx.xxx.xx:62998    SYN_RECV    -
tcp        0      0 94.73.206.241:8080      xxx.xxx.xxx.xx:63418    SYN_RECV    -

admin@webserver:~$ ping google.co.uk -I eth-internet
PING google.co.uk (74.125.43.103) from 192.168.1.212 eth-internet: 56(84) bytes of data.
64 bytes from bw-in-f103.1e100.net (74.125.43.103): icmp_req=1 ttl=52 time=108 ms
64 bytes from bw-in-f103.1e100.net (74.125.43.103): icmp_req=2 ttl=52 time=107 ms
64 bytes from bw-in-f103.1e100.net (74.125.43.103): icmp_req=3 ttl=52 time=107 ms

admin@webserver:~$ ping google.co.uk -I eth-internet
PING google.co.uk (74.125.43.99) from 94.73.206.241 eth-internet: 56(84) bytes of data.
64 bytes from bw-in-f99.1e100.net (74.125.43.99): icmp_req=1 ttl=52 time=109 ms
64 bytes from bw-in-f99.1e100.net (74.125.43.99): icmp_req=2 ttl=52 time=108 ms