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Can't receive email - port 110 seems to be blocked from office - what could be wrong?

My client cannot receive emails. 4 pc's in their network and they have a linksys router on their lan. Thei static IP address is provided by their serivce office which has a main internet conneciton shared out among all offices.

They still can send emails OK. On doing the telnet server test
telnet domain 110 they cannot connect.
Trying this on the office next door to them (in the same building - all effecitlly using the same internet conneciton but each office issued with a public static ip address) and the telnet command logs in OK.

Therefore this said to me the problem is definelty the lan. Nothing has changd on their router configuration. Coudl this be a faulty router?

The service office people assure me nothing has chaged, so could this really be a faulty router that still provides internet connection but access to port 110?

Any help appreciated
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afflik1923
Asked:
afflik1923
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3 Solutions
 
thenoneCommented:
How old is the router. Linksys routers can go out.
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afflik1923Author Commented:
it's about 2 years old. It's an:WRT54G
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thenoneCommented:
Chances are it is going bad. I would try a new one and they are not that expensive to see if that resolves your problem.
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afflik1923Author Commented:
is that really possible for a router to go bad in the way it just do not allow connection to port 110.
I've arrged to mkae a chargable visit tomorrow with a replacement router (I'll take a netgear and Draytek and sell them whatever they are preparted to buy (Rather draytek but costs more to them).

I've just never know a problem like this. Everything else works OK.

Also they have not told me they had issues early in the day and late at evening.
Also I was able to telnet into BT's (UK main ISP) incoming mailserver from there PC on port 110.

Thanks for input
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thenoneCommented:
That would be my suggestion.
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Robert Sutton JrSenior Network ManagerCommented:
Check the configs between the two. If it functions next door on the same provider and you can send emails but not receive or vice versa in your office, I would doubt it would be a hardware issue... It has to be a config issue somewhere. It sounds like its all one company just diff. offices being fed internet by the same providers....
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afflik1923Author Commented:
When I went in to replace the router all things were working OK. Replace the router with a draytek 2910.
For 5 mins on site after instaling the new rotuer the problem ocurred!!!. But only for 5 mins.

Really bizarre. Unfortunlety cannot do any thorough testing on next doors interent. It was just a quick test.
The other thing I noted was that I was able to telnet into another mail host (BT's) on port 110 during the outage.
So it would seem the problem when it occurs only affects this particular office to the particular server which hanles thre email. I indierectly provide their email services and no one else on the same server has any problems, even when they report the outages.

Where should be I be looking to solve the problem?
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afflik1923Author Commented:
the information helped but I never really got to the bottom of the problem. Replaced the uter but the probablm did intially reoccur, but after that never since (A few months now passed). So never 100% if replacing router it was solved it.
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