Lose XI connections after R/3 shutdown for maintenance

Hi,
Every time we shout down R/3, all the communications trough XI crash. We need to restart XI too. Is that normal? Is there something I can do to restore the connectivity automatically when R/3 is back?
I think it might be a gateway problem but I'm not sure?
The first weekend, I was getting this error:
<SAP:Category>XIServer</SAP:Category>
<SAP:Code area="MAPPING">JCO_COMMUNICATION_FAILURE</SAP:Code>
<SAP:P1>Error opening an RFC connection.</SAP:P1>
<SAP:P2 />
<SAP:P3 />
<SAP:P4 />
<SAP:AdditionalText />
<SAP:ApplicationFaultMessage namespace="" />
<SAP:Stack>"COMMUNICATION FAILURE" during JCo call. Error opening an RFC connection.</SAP:Stack>
<SAP:Retry>N</SAP:Retry>
This weekend, I got:
<SAP:Category>XIServer</SAP:Category>
<SAP:Code area="INTERNAL">AE_DETAILS_GET_ERROR</SAP:Code>
<SAP:P1>af.xpd.dbcixpd</SAP:P1>
<SAP:P2 />
<SAP:P3 />
<SAP:P4 />
<SAP:AdditionalText>3: Unable to find URL for Adapter Engine af.xpd.dbcixpd</SAP:AdditionalText>
<SAP:ApplicationFaultMessage namespace="" />
<SAP:Stack>Error when reading the access data (URL, user, password) for the Adapter Engine af.xpd.dbcixpd</SAP:Stack>
Any idea?
After a XI restart, It's working again??
Rgds,
Yves

Hi Yves,
normally you should not need to restart XI to reestablish that connections. It should be sufficient if you restart the RFC adapters (either in Integration Builder by changing and reactivating the communication channel, or by restartinif the Service RFC Adapter in the Visual Admin)
Best regards
Christine

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Tried that too! Notta.
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