RPC Over HTTPS work intermittently from some external locations
Posted on 2011-05-11
OK this one has me stumped and i need some fresh ideas or even back to basic steps.
I have a SBS 2008 server which is configured for RPC over HTTPS.
External customers connect to this daily and it works both internal and external of the network.
I can connect to the exchange server by using internet explorer and I have the certificate installed for mail. All works great from Home Internet connection all of the time.
At one site in particular my outlook says trying to connect. at the same time I could have another latop next to me which connects without a problem. 3 hours later mine may connect but someone else's doesn't, they could all work or they could all not work. This has got me confused as I have been chasing this issue for 2 weeks.
Originally I thought it could be the ISP's issue but why may it work sometimes and not others?.
I have replaced the Firewall/ADSL modem with no change.
Has anyone got any suggestions for fault finding or testing the connection when it isn't working.
if I go outlook.exe /rpcdiag the screen just says connecting but nothing seems to be happening.
Is their a manual way to test this rpc connection?