BBM & Email stop working every morning...​.

Every morning my BBM, Whatsapp, Email and Facebook notifications stop working....
BBM has a red clock when sending and doesn't receive and the others don't receive or send anything...
The only fix has been pulling the battery or doing a soft reset with ctrl+alt+delete.
I have tried reinstalling the apps, reinstalling the OS (don't know how to format and reinstall tho)
Can anyone give me some solutions? Does it sound like a hardware problem?
My phone is a brand new out the box Blackberry Curve 8520, its got an etisalat sim card as I live in Dubai if that matters. 

Cat and Maximo,
> Let me try to get that straight. Your BM does static NAT for your
> mailserver (and other boxes), and suddenly UDP and ICMP from these
> natted servers through the BM still works, but TCP doesn't?
Yes. That's what it looks like.
> Can you still do TCP *to* the BM from the natted devices when that
> happens? As you say your proxy continues to work, it sounds as if TCP in
> general on the server continues to work, but does it also work from the
> mailserver?
Everyone browsing via BM proxy continues with no interuption.
The mail server can telnet to any other server on the internal LAN but
nothing past BM. DNS continues working for the mail server too.
> If really nothing changed, this might be a (succesful) DOS attack of
> some sort. I wonder if a LAN trace could reveal anything of interest.
Do you mean port scan the BM server?
I know that "nothing has changed" is a loaded statement. The only thing
(that I know of) that has changed relatively recently is the addition of
the Squid server. It has been running behind the BM server for about 3
weeks. Recently I added a filter exception allowing the Squid server to
access higher ports (dyn/tcp).
But, as I noted before, I think removing ipflt should eliminate any
doubts there. Is there some way Squid could be corrupting something there?
The problem was compounded this morning (saturday). I came in today so I
would have the network essentially to myself. But, to my surprise,
everything was ok.
Cat, You're right. This server is no spring chicken. It is an IBM
Netfinity 3000. Its probably 3 or 4 years old (maybe more). I will think
about this as a hardware problem but I just wish the thing would die
altogether and get it over with. :o)
Thanks,
Brian

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    Hello,
    I have a relatively complex problem that has brought me to the limit of
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    Cat and Maximo,
    > Let me try to get that straight. Your BM does static NAT for your
    > mailserver (and other boxes), and suddenly UDP and ICMP from these
    > natted servers through the BM still works, but TCP doesn't?
    Yes. That's what it looks like.
    > Can you still do TCP *to* the BM from the natted devices when that
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    Everyone browsing via BM proxy continues with no interuption.
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    nothing past BM. DNS continues working for the mail server too.
    > If really nothing changed, this might be a (succesful) DOS attack of
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    Do you mean port scan the BM server?
    I know that "nothing has changed" is a loaded statement. The only thing
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    access higher ports (dyn/tcp).
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    doubts there. Is there some way Squid could be corrupting something there?
    The problem was compounded this morning (saturday). I came in today so I
    would have the network essentially to myself. But, to my surprise,
    everything was ok.
    Cat, You're right. This server is no spring chicken. It is an IBM
    Netfinity 3000. Its probably 3 or 4 years old (maybe more). I will think
    about this as a hardware problem but I just wish the thing would die
    altogether and get it over with. :o)
    Thanks,
    Brian

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