We have 3 Aironet 1310 Wireless Bridge. 1 of them is Root bridge, others non-root and Workgroup bridge. Normally ping delays are 6-7 ms avarage, but somedays 200-300 ms and timeouts. I dont understand what is the reason. Any other wireless telephone? or other 2.4 Ghz antenna? or ground voltage of buildings? 1 of the non-root bridge's configuration is at the attachment.