We are running 2 BM (3.8) Proxies and until today they have been operating reasonably well.

Today we have started getting a lot of 504 errors on workstations using either both servers, looking at the proxy DNS page (on both servers) the DNS links are continually going up and down (like our internet)

We have 3 DNS servers entered 2 external and 1 internal. I have tested from outside the BM Servers $and know the 2 external DNS servers are working fine (also no one else who use our provider have an issue). The internal DNS also seems fime.

We have not made any changes to the system or the BM Servers and this has only just happened.

We have cleared the proxy cache and also restarted both servers, this has had no effect.

Any pointers would be appreciated

S Smith