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New Member

Connection reset by peer

We are using squid proxy on a Redhat 7.2 . We are connected to the

internet thro cisco router 2621XM. Policy based routing has been recently

implemented for VPN.

After introduction of this router, our clients receive the error "Read Error (104) Connection reset by peer" often when accessing http sites through the squid proxy.

During this time, however, a few sites are accessible by the same


We have also observed that during such times, we are not able to access

http sites from the machines directly connected to the internet (ie,

without using proxy). But we are still able to ping those sites, from the proxy machine and the cisco router

This problem occurs especially during heavy traffic and gets solved by

itself after a few minutes.

Can anyone please help us sort this problem?

Thanks in advance.



Re: Connection reset by peer

This 2600 product support page has a quite a lot of useful links to troubleshoot your problem. Give it a shot.

New Member

Re: Connection reset by peer

If this is a new VPN and web and ssl traffic are using the VPN, you may want to check the MTU size. One of the more common problems with new VPN installs is the MTU size. The standard of 1500 is too big. If this is the issue then set the clients to use an MTU size of no more than 1450.