Keeping my fingers crossed! Thomas W Shinder, M.D. Site: www.isaserver.org Blog: http://blogs.isaserver.org/shinder/ Book: http://tinyurl.com/3xqb7 MVP -- ISA Firewalls > -----Original Message----- > From: isapros-bounce@xxxxxxxxxxxxx > [mailto:isapros-bounce@xxxxxxxxxxxxx] On Behalf Of Jason Jones > Sent: Wednesday, August 23, 2006 3:48 PM > To: isapros@xxxxxxxxxxxxx > Subject: [isapros] Re: RPC filter - connectivity changed > > http://support.microsoft.com/default.aspx?scid=kb;en-us;917936 > &sd=rss&sp > id=2108#appliesto > > A final fix??? > > The customer is currently testing, so fingers crossed! > > -----Original Message----- > From: isapros-bounce@xxxxxxxxxxxxx > [mailto:isapros-bounce@xxxxxxxxxxxxx] > On Behalf Of Jim Harrison > Sent: 16 August 2006 00:54 > To: isapros@xxxxxxxxxxxxx > Subject: [isapros] Re: RPC filter - connectivity changed > > Yes, it is. > Please - call them. > It's the only way you can address this issue. > I'd love to hand you the patch, but I can't. > > ------------------------------------------------------- > Jim Harrison > MCP(NT4, W2K), A+, Network+, PCG > http://isaserver.org/Jim_Harrison/ > http://isatools.org > Read the help / books / articles! > ------------------------------------------------------- > > > -----Original Message----- > From: isapros-bounce@xxxxxxxxxxxxx > [mailto:isapros-bounce@xxxxxxxxxxxxx] > On Behalf Of Jason Jones > Sent: Tuesday, August 15, 2006 15:37 > To: isapros@xxxxxxxxxxxxx > Subject: [isapros] Re: RPC filter - connectivity changed > > Ori/Jim, > > Bit more info from testing today: > > Created connectivity verifiers late last week for all > exchange back-end > servers and was onsite today when the RPC filter failed again. > > Symptoms > > Basically what happens is that for no apparent reason all MAPI clients > lose access to Exchange and ISA logs repeated alerts saying > "RPC filter > - connectivity changed". Accompanying these ISA logs, the application > logs says "unable to connect to ExchangeIP:135 connection failed" > quickly followed by "Connection to ExchangeIP:135 connection > restored". > These errors loop to say connected then disconnected. Every time you > start a MAPI client and try to access Exchange more and more > ISA alerts > are created and more and more application errors are generated. > > > > > During all this time, the RPC connectivity verifiers show good > connectivity to all Exchange servers. > > > > Looking at the ISA logs, I traffic being logged as allowed, but every > connection seems to be followed by an instant "0x80074e24 > FWX_E_CONNECTION_KILLED" entry. > > Workaround/Current Fix > > If you restart the firewall service on all array members then MAPI > clients can successfully connect to Exchange and continue > working until > the filter fails again. Sometimes this is a few hours, > sometime this is > a few days. These system is currently only in pilot so only has <15 > users at the moment, so shouldn't be due to RPC filter load issues. > > Is this another PSS call in the making? :-\ > > Any more ideas??? > > Cheers > > JJ > > ________________________________ > > From: isapros-bounce@xxxxxxxxxxxxx > [mailto:isapros-bounce@xxxxxxxxxxxxx] > On Behalf Of Ori Yosefi > Sent: 09 August 2006 07:39 > To: isapros@xxxxxxxxxxxxx > Subject: [isapros] Re: RPC filter - connectivity changed > > > > It does indeed sound strange. > > I haven't heard of such a problem before, so I don't have any > recommendations how to fix it. > > I would recommend that you add a connectivity verifier, if > possible, to > the server. You can see if when you get the RPC alert you also get a > connectivity alert. It may provide some hints. > > > > I would also suggest contacting PSS to get someone from Microsoft > investigate it. > > > > HTH, > > Ori. > > > > ________________________________ > > From: isapros-bounce@xxxxxxxxxxxxx > [mailto:isapros-bounce@xxxxxxxxxxxxx] > On Behalf Of Jason Jones > Sent: Wednesday, August 09, 2006 1:26 AM > To: isapros@xxxxxxxxxxxxx > Subject: [isapros] Re: RPC filter - connectivity changed > > > > Thanks Ori - kinda how I expected the alert to be. > > > > I get the ISA alerts 2/3 times every couple of weeks and lots of event > log errors, saying "RPC server available", then "RPC server > unavailable" > in a complete loop. The only way to solve the issue is to reboot all > array members - ouch! Whilst ISA is in this state all existing MAPI > clients remain working, but all new sessions fail. > > > > However, I can see no reason why the Exchange server (the RPC > published > server) should suddenly appear unavailable - I also cannot see why the > destination server is at fault if a reboot of ISA fixes the problem. > Kinda feels like ISA is getting confused to me :-\ > > > > JJ > > > > ________________________________ > > From: isapros-bounce@xxxxxxxxxxxxx > [mailto:isapros-bounce@xxxxxxxxxxxxx] > On Behalf Of Ori Yosefi > Sent: 08 August 2006 18:23 > To: isapros@xxxxxxxxxxxxx > Subject: [isapros] Re: RPC filter - connectivity changed > > This alert is issued when a published RPC server has gone > offline / came > back online. > > > > When attempting to establish a connection with the RPC server, if the > connection attempt fails (for the first time) then this alert > is issued. > Later on, when a connection attempt is successful (for the first time) > then this alert is issued again. > > > > HTH, > > Ori. > > > > ________________________________ > > From: isapros-bounce@xxxxxxxxxxxxx > [mailto:isapros-bounce@xxxxxxxxxxxxx] > On Behalf Of Jason Jones > Sent: Tuesday, August 08, 2006 8:10 PM > To: isapros@xxxxxxxxxxxxx > Subject: [isapros] RPC filter - connectivity changed > > > > Hi, > > Anyone seen the "RPC filter - connectivity changed" ISA alert? Under > what scenario does this get trigged? > > Is this an ISA problem or an indication that the published > RPC server is > at fault? > > Cheers > > JJ > > <<rpc filter.JPG>> > > > All mail to and from this domain is GFI-scanned. > > > > > > >