keep losing dyndns connection

not sure if this is to do with oscam or my new super hub virgin give me, for some reason some of my clients cant connect to my server, one min everfing is working fine, then it will show maybe 5 7 clients have droped out including my own box, and some times if i login to my netgear router and goto dns staus it says.. Update failed at 04:59 PM, 12/22/2012. The service provider is not reachable. if i keep rebooting server and restarting internet it comes back on, but that can take up to ahour of rebooting, when it happens i cant conect using my fone eather, dyndns.org:16001 will it be to do with virgins new super hub and the new 30mb connect they put me on, it seems to happen more at weekends anyone have this problem
thanks

their is no dns settings in the hub, their in my netgear, i dnt mess with them just check the staus when clients not connecting, but lots of times it says their no problem but clients still cant connect, i dnt get how some connect and some dnt, i even set my dm800 box local 192.168.1.6 and it still sometimes doent connect, ats what mkes me think its oscam problem, some times even if i dnt reboot internet and i just reboot server it fixes problem, its doing my head in, its happening twice a week now or some times more

i dnt think its the configs, maybe somefing wrong wiv the oscam or ccam or the pc its self.
[reader]
label = slyuk
protocol = pcsc
device = 0
caid = 0963
detect = cd
mhz = 368
cardmhz = 368
ident = 0963:000000
group = 1
emmcache = 1,3,2
blockemm-unknown = 1
blockemm-g = 1
saveemm-u = 1
saveemm-s = 1
lb_weight = 101

[global]
#logfile = /var/local/oscam.log
cachedelay = 120
nice = -1
maxlogsize = 0
saveinithistory = 1
debug = 255

[newcamd]
port = 15500@0963:000000
key = 0102030405060708091011121314
allowed = 127.0.0.1,192.168.0.0-192.168.255.255
keepalive = 1

[webif]
httpport = 15000
httpuser = user
httppwd = password
httprefresh = 10
httpallowed = 127.0.0.1,192.168.0.0-192.168.255.255

[account]
user = card1
pwd = card1
uniq = 2
monlevel = 1
caid = 0963
ident = 0963:000000
group = 1
#au = 0
blockemm-unknown = 1

SERVER LISTEN PORT : *****

ALLOW WEBINFO: yes
WEBINFO LISTEN PORT : 16001
WEBINFO USERNAME :root
WEBINFO PASSWORD :dreambox
ZAP OSD TIME : 3
OSD USERNAME : root
OSD PASSWORD : dreambox
OSD PORT : 80
#SHOW TIMING : yes
#MINI OSD : yes
DEBUG : yes
NEWCAMD CONF : yes
PROVIDERINFO FILE : /var/etc/CCcam.providers
CHANNELINFO FILE : /var/etc/CCcam.channelinfo
#MINIMUM DOWNHOPS: 1
DISABLE EMM : yes
EXTRA EMM LEVEL : no
#protocol : internal
#device : /dev/sci0
#BOXKEY: /dev/sci0
N: 127.0.0.1 15500 card1 card1 01 02 03 04 05 06 07 08 09 10 11 12 13 14 256
one thing i have tryed to do but would let me, is to add a second user, when i make a second user it doesnt show up in the [webif] in oscam

[account]
user = test
pwd = test
uniq = 2
monlevel = 1
caid = 0963
ident = 0963:000000
group = 2
#au = 0
blockemm-unknown = 1

never tryed, how shud i ping it, and that bk is of a old card.

yes i try it in command prompt and it give my ip address, it says sent4 packet and received 4, every thimng is workin at the min but next time it stops i will try this, so if it doesnt give my ip, wat would be wrong
dreamuser

ok and thats in the router, next time it stops il put a different router in, and wont reboot anything, so if it comes on again, them it deff the router, but why does only some clients go off

u said about dns software, that must be in the router, yes, i mean i have a different netgear i will try that on next time

ok it happened again, about 6 clients droped out and i couldnt log to the 16001 page using my fone, wen i tryed to ping it using command prompt didnt give me my ip, it give me this one reply from 192.168.1.0 bytes=32, i did try to change my router, to a d-link but had even more problems and couldnt get my own boxes to work, i check for a firewall but cudnt see any, do it look like the router is the problem, and when i went to show status in netgear router it said service provider unreachable.
dreamuser